What to do with old robot? / Cybot

I found an old robot that was part of one of those 'build it yourself' magazine series. I was gonna eBay it but found there was actually quite alot of cool stuff in there so I've compiled a list and I'm gonna make an instructable using some of the parts, But I need ideas / help.Here are (the best) parts.2x sets of ultrasonic emitters / receivers2x LDRs large2x smaller photoresistors (used for line following)2x set of inrfa red emitter& reciever leds2x bright white leds + various others2x 9v motors & gear housingsLCD display 5cm squreeepromspeed controllers selector switches etcand a load of pre programmed processors that can't be reused.some more technical details here

Posted by madmanmoe64 10 years ago


ultrasonic

HI, Guys .. i have only little question : IS there any way how to made cheep ( or from house-hold items) piezo ultrasonic transducer? thanks for answer :)

Posted by insurgent 3 years ago


ultrasonic cleaning machine

What is the output voltage of 100 watts with 40khz frequency and 220 input voltage generator of home made ulta cleaner for having greatest efficiency?

Posted by mehran1376 1 year ago


ultrasonic radar pc software

What pc software do you use to create a radar screen on computer screen that then picks up signals from ultrasonic sensor???

Posted by toka519 5 years ago


Can the NXT 2.0 ultrasonic sensor detect glass?

So, can the sensor sense glass? since its ULTRASONIC does that mean it detect things by sound and not by light? 

Posted by NXTHacker 6 years ago


ultrasonic sensor convert 4 pin to 5 pin

Hello there, Is it possible to convert a 4pin ultrasonic sensor to a 5pin? I have this sensor with 4 pins: http://www.ebay.com/itm/Waterproof-DC-5V-DYP-ME007Y-Ultrasonic-Sensor-Module-Measuring-Range-30cm-3-5m-/201025966447 and this display module with "5 pins": http://www.ebay.com/itm/Mini-Non-contact-Ultrasonic-Motion-Detector-Module-Sensor-Display-Board-Security-/360717776823 How do i get the display module and sensor module, to talk together? BEST :) Regards Lasse

Posted by dmor 4 years ago


Converting sound to ultrasonic

I need to convert a bird sound from the audible level to the ultrasonic,  close to the the 20khz level. as long as we human cant hear the sound.  My question is,  what is the best method to convert this file? thanks in advance

Posted by bujuk 7 years ago


Waterproof Ultra Sonic

Does anyone know of any type of ultrasonic that is waterproof and can go underwater? cause im trying to make a fog machine using the ultrasonics pieces and water since my dad bought something that worked like what i described. anyone know of any that can be underwater or some design that will work underwater using a regular ultrasonic you see on robots?

Posted by KT Gadget 9 years ago


arduino ultrasonic communication

I was thinking about using the ultrasonic  module (hc-sr04) for communication for two or more arduino.the way i was thinking of do to turn a 8 bit number into single bits(i have no idea on how to do that) and send them one at time(with delay) to a another arduino which turn it back into a number also  has a master arduino  and slave arduinos 

Posted by act casual 6 years ago


Need help for improving PING Ultrasonic sensor code to make it precise

Hi guys,               I havebuilt a circuit to detect the swinging of an object using ultrasonic sensor and send signals to the Arduino Duemilanove board which in turn activates the solenoid. The circuit is working fine but I'm using a PING Ultrasonic sensor and I'm having hard time controlling it with the code. Do you have any idea about how to control and make the readings precise for the Sensor? If you want, I can post my code here... Any help is appreciated. Thanks in advance!

Posted by kailash174 6 years ago


where can i get a under water ultrasonic sensors in india or online. i'm doing a progect on under water robot using arduino

Hello, im from bangalore india. looking for a under water ultra sonic sensor for a under water robot. compatible with atmega 8, arduino.

Posted by opadigela 6 years ago


Ultrasonic distance measure

Hi eveyone, I'm an assistant cameraman in film and tv and sometimes I've hired in a  professional distance measure device to help with really tricky shots. Trouble is, to buy one costs an arm and a leg, I was just wondering if anyone here had come up with an affordable version. The device sits on top of the camera and sends out ultrasonic pulses to where ever it's pointing and displays the distance in feet and inches on a LED display, that constantly updates. That's all it needs to do. Should have a range of 2' to 15' and be +/- 1" accuracy. Any help would be greatly appreciated.

Posted by Fat Sparrow 6 years ago


Make a ultrasonic Dog Barking machine??

I need someone to make a ultrasonic dog barking machine. I have a neighbor who allows their dog to back early in the AM and all during the day, so I want a powerful ultrasonic device that when i turn it on it will make their dog howl at 3AM and wake them up, similar to when the fire engine goes by, so that they will get a taste of what they do to me. This has been going on for a year and I can't get them to do anything to train the dog, they just don't care. I am willing to pay for a device that will work. The dog training devices like you see advertised like "Barkoff" have to be in the same room and all I have read is the ultrasonic dog trainers available don't penetrate walls. I don't want to train the dog not to bark, I want to annoy the neighbors and give them what I have been getting. Evil, maybe, justified, YES! email me direct   myxpykalix@hotmail.com        THANKS

Posted by myxpykalix 7 years ago


Recording ultrasonic sound

I looked up at bat detector, a device that converts ultrasonic signals into audible sounds. Most bats produce high frequency calls which are often higher than a human ear can pick up. A bat detector picks up the frequencies and then converts the sound into a lower, audible frequency. I was thinking if I could get a bat detector, I use it to capture the ultrasonic sounds.While bat detector could pick up these high frequencies, it would be interesting to see how it will pick up the faintly heard, to human ears - sounds of the industrialised areas/city or even at isolated/quiet areas. The bat detector I want to use is this - http://www.magenta2000.co.uk/acatalog/B ... _Bat4.html I'm thinking of hooking up the bat detector to a digital recorder and a binaural microphone and capture the sound through those equipments. I would greatly appreciate your suggestions/opinions on this matter.

Posted by drifterocean 4 years ago


Ultrasound 3D positioning

How would you use an array of ultrasonic sensors to determine the 3d position of an ultrasonic transmitter. Basically i want an ultrasound transmitter on my hand that gets picked up on an array of 5 or so receivers that outputs the position via usb.

Posted by redshirtdeath 7 years ago


homebrew ultrasonic cleaning solutions

I just picked up a branson 5210 2.5 gallon ultrasonic cleaner.i will be using it to clean aluminum motorcycle carbs that have been sitting and become encrudded.i have gotten a lot of suggestions as to what sort of home brew recipes work well, i was hoping people around here could tell me what they use or have heardi will be ordering some of the carb cleaning stuff from sharperteks website to compare it to different homebrew recipes. my goal is ease and lack of cost here. thankshttp://i9.ebayimg.com/01/i/001/43/54/91b8_35.JPG

Posted by 666mph 9 years ago


SENSOR- Ultrasonic HC-SR04 (Interfacing HC-SR04 with 8051)

Hi friends, I am doing a project based on obstacle detector. It is a outdoor project hence i choose to buy an ultrasonic sensor to work efficiently on both bright sun light as well as dark nights. Now my problem is i am not able to interface this sensor with my controller. Anyone please tell me what input i must give to trig input of that sensor and what kind of output i get form the echo pin. also tell me how can i interface this sensor with the AT89S52. i have attached the user manual which i downloaded from internet.  Please help me with your valuable comments, Thanks in advance.

Posted by knachuthan 3 years ago


How would I make a sensor sense motion coming at me from behind while I'm moving forward?

I'm trying to make a small sensor that would detect a large object coming at me from behind at about 60mph while I'm moving forward at around 7mph. What kind of sensor would I use? I looked up the different types and I found Passive/active infrared, optic-based, piezoelectric, and ultrasonic. I tried to figure it out myself and my best guess is ultrasonic? Like what cars use to detect deer, they use "ultrasonic airflow sensors". Ideally the sensor would beep and get louder or faster as the object approaches. Would I use an arduino? I'm very new at this :/ Thanks for any help!

Posted by arrowstation 2 years ago


Pond/Water Misters/Foggers

Does anyone have a pond fogger/mister and knows what frequency (Hz-Hertz) ultrasonic thing vibrates at.

Posted by thermoelectric 10 years ago


[Help] bicycle proximity sensor

Hello guys i would like to start making a proximity sensor the idea is to mount it on the back of my bicycle when an object/vehicle come close it gives me reading with distance and maybe a beep or something like that,the question is i found there are 2 methods one using IR and one using ultrasonic,which one is cheaper and which one is better and easier.this is supposed to my first instructable involves programming.

Posted by Mido Masry 3 years ago


logging ESP8266 data of(BMP180+DHT22+Ublox GPS Neo 6m +hc04 ultrasonic sensor)

Hi instructables , i'm just starter in this filed i just need Sketch for logging ESP8266 data of(BMP180+DHT22+Ublox GPS Neo 6m +hc04 ultrasonic sensor) all data in separeted files  i found in Net GPS neo logging but for the authers no ..please if someone can help me i will be very thankful 

Posted by Slash09 1 year ago


Arduino | Run 2 Function at the same time.

Hi , i wanna ask about 2 function which is Ultrasonic and Heat that run at the same time  , For me , i just got Heat running as i want but the Ultrasonic doesn't trigger the buzzer if object (Laptop) 30cm away from the ultrasonic. I've been trying since last week but the result is still the same ;'( Btw here is the code , i've seperate it to 2 function which is Ultrasonic and Heat.  i hope u guys can guide me which part should i change or Add. Thanks in advance ;) //*********************************** #include #define trigPin 6    //trigPin #define echoPin 7    //echoPin LiquidCrystal lcd(12,11,5,4,3,2); int tempPin = A1;   // the output pin of LM35 int fan = 10;       // the pin where fan is int led = 9;        // led pin int temp; int tempMin = 35;   // the temperature to start the fan int tempMax = 70;   // the maximum temperature when fan is at 100% int fanSpeed; int fanLCD; int duration, distance; int buzzer = LOW; void setup() {   Serial.begin (9600);        //Baud rate   pinMode (trigPin, OUTPUT);  //trig pin as output   pinMode (echoPin, INPUT);   //echo pin as input   pinMode (13, OUTPUT);       //Buzzer pin as output   pinMode(fan, OUTPUT);   pinMode(led, OUTPUT);   pinMode(tempPin, INPUT);   lcd.begin(16,2);   } void ultrasonic() {   digitalWrite (trigPin, HIGH);   delayMicroseconds (1000);   digitalWrite (trigPin, LOW);   duration = pulseIn (echoPin, HIGH);   distance = (duration/2) / 29.1;   if (distance > 30)   {     Serial.print(distance);     Serial.println(" cm");     digitalWrite (13, HIGH);   }   else   {     Serial.println (distance);     Serial.println ( "cm");     digitalWrite (13, LOW);   } } void heat() {   temp = readTemp();     // get the temperature   if(temp < tempMin) {   // if temp is lower than minimum temp     fanSpeed = 0;      // fan is not spinning     digitalWrite(fan, LOW);         }   if((temp >= tempMin) && (temp <= tempMax)) {  // if temperature is higher than minimum temp     fanSpeed = map(temp, tempMin, tempMax, 32, 255); // the actual speed of fan     fanLCD = map(temp, tempMin, tempMax, 0, 100);  // speed of fan to display on LCD     analogWrite(fan, fanSpeed);  // spin the fan at the fanSpeed speed   }   if(temp > tempMax) {        // if temp is higher than tempMax     digitalWrite(led, HIGH);  // turn on led   }   else {                    // else turn of led     digitalWrite(led, LOW);   }   lcd.print("TEMP: ");   lcd.print(temp);      // display the temperature   lcd.print("C ");   lcd.setCursor(0,1);   // move cursor to next line   lcd.print("FANS: ");   lcd.print(fanLCD);    // display the fan speed   lcd.print("%");   delay(200);   lcd.clear();   } float readTemp() {  // get the temperature and convert it to celsius   temp = analogRead(tempPin);   return temp * 0.48828125; } void loop() {    ultrasonic();   heat(); } //***********************************

Posted by Melromeo 4 years ago


NEED HELP WITH CODING

Hello i would like to know if you guys could help with a code to make a servo reacts to an ultrasonic sensor. The way it would work is that when an object gets close to the sensor for example 2 inches, then the servo goes from 0 degrees to 135 degrees, then wait 5 seconds and go back to original position ( 0 degrees). i was thinking of using loop. something like . loop if  sensor is close to 2 inch then servo goes from 0 to 135 degrees then delay 5 seconds and go back from 135 to 0 degrees else do nothing end if end loop

Posted by tech20151 2 years ago


How to make an Ultrasonic Proximity Sensor w/ Vibrating motor?

Ok so I want to use something like http://www.parallax.com/Store/Sensors/ObjectDetection/tabid/176/ProductID/92/List/1/Default.aspx?SortField=ProductName,ProductName and http://tinyurl.com/cxlp8jz to create a small system that vibrates when an object is in the way of the detector. To elaborate, Something like https://www.instructables.com/id/Make-an-Attiny13-based-IR-proximity-sensor-for-2/ but using an ultrasonic sensor(for farther range) and a vibrating motor instead of an LED because I am looking to make something for the blind. So how would I build it? I can purchase any parts and just need some instructions like the project above provided. Thanks a lot for any help you can provide. Also , If I need to use a Raspberry Pi, I have one. My Skills? My skills are limited. I know how to solder and work with PCBs, But I do not know how to code a microprocessor. I know that I'd hook it up to an arduino to code it but I can't code. If someone can tell me where to solder the parts and give me a code, I'll be able to do it. Thanks alot for your reply. If someone does this for me, I would be very grateful and might even make some donations to you. :) So to summarize, I need code to program a microprocessor to make a vibrating motor vibrate when the PING senses an object. I also need some sort of a schematic. I will be very grateful and will be sure to give you acknowledgements when I do my project.

Posted by hackery21 5 years ago


Messed Up URL!! Can it be fixed??? Help

Okay. So, I finished my first Instructable!! Then, I screwed up. I was on the last step when I published it & It put my last-step title in the URL & removed my Intro pictures!!!! If I click on the "See All" button, it shows correctly. I've tried to fix it but can't. The name (& Intro title) of the Instructable is: Arduino Ultrasonic "Parking Spotter", which should be in the URL. Instead, the URL is: https://www.instructables.com/id/And-One-Sketch-To-Rule-Them-All/ "And One Sketch To Rule Them All" is the name of my last step! What can I do to get it to: https://www.instructables.com/id/Arduino-Ultrasonic-Parking-Spotter/ I've tried UN-publishing it, but that didn't work. :( Help would be appreciated! Jeff (AptPupil)

Posted by AptPupil 5 years ago


security system (not responding after combining ultrasonic sensor code and esp8266 code )

The base of this project is https://www.instructables.com/id/SIMPLE-ARDUINO-ULTRASONIC-SENSOR-DOOR-ALARM-/ &http;://randomnerdtutorials.com/door-status-monitor-using-the-esp8266/ I changed according to my uses from above links I tryed by dividing into two parts one for ultrasonic sensor and other for esp8266 they worked fine while separating ultrasonic and buzzer are working in (Tools and wifi module is working in onlt(Tools when i mix ultrasonic and buzzer nothing happening) any idea here is the code #include #include #include #include #define USE_SERIAL Serial #define trigPin 9 #define echoPin 10 #define piezoPin 8 ESP8266WiFiMulti WiFiMulti; int normalDistance; boolean triggered = false; long duration, distance; void setup() {   USE_SERIAL.begin(115200);   pinMode(trigPin, OUTPUT);   pinMode(echoPin, INPUT);   pinMode(piezoPin, OUTPUT);   long duration, distance; while (millis() < 5000) {   digitalWrite(piezoPin, HIGH);       digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance= duration*0.034/2;         normalDistance = distance;       USE_SERIAL.print("Distance: "); USE_SERIAL.println(distance);         digitalWrite(piezoPin, LOW);    for(uint8_t t = 4; t > 0; t--) {         USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);         USE_SERIAL.flush();         delay(1000); } WiFiMulti.addAP("username", "pass"); } } void loop() { digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance= duration*0.034/2; USE_SERIAL.print("Distance: "); USE_SERIAL.println(distance); if (distance < normalDistance-5) {       triggered = true;     }     else {         triggered = false;     }     if (triggered) {     tone(piezoPin, 635);     delay(500);     tone(piezoPin, 912);     delay(250);     if((WiFiMulti.run() == WL_CONNECTED)) {         HTTPClient http;         USE_SERIAL.print("[HTTP] begin...\n");                 http.begin("iftt link.........................."); //HTTP         USE_SERIAL.print("[HTTP] GET...\n");         // start connection and send HTTP header         int httpCode = http.GET();         // httpCode will be negative on error         if(httpCode > 0) {             // HTTP header has been send and Server response header has been handled             USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);             // file found at server             if(httpCode == HTTP_CODE_OK) {                 String payload = http.getString();                 USE_SERIAL.println(payload);             }         } else {             USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());         }         http.end();     }     } } any idea about whats going on Thanks Hemanth

Posted by hemanth kumar reddy 1 year ago


POWERING SERVOS and other modules

Can you guys help me pls.I don't know how to power servos.My projects use an ultrasonic sensor with a few servos.when i try to power it up only 1 module that works.Can i power the servos using a different power source?like a power bank

Posted by Alexander heron the inventor 2 years ago


Echo Location / Arduino / Michropones

Hello guys, So, I´d aprecciate if you could give me any ideas about echo location using microphones or ultrasound detectors, the idea is to put three or four sound detectors and put any object in the middle so that way because of the sound I could know where the object is, by using the detectors

Posted by JoséG100 2 years ago


ZnSe lens cleaning

At work we have a ZING laser knockoff and SOMEbody "accidentally" walked off aaaand it caught on fire. Almost everything has been tried to clean it, even putting it in acetone in the ultrasonic cleaner, and the lens is still crap. Short of buying a £75 replacement lens what inexpensive methods could be used to return it to a near-original state?

Posted by The Ideanator 7 years ago


Controlling 9 Micro Servos with Arduino & Ultrasonic Sensor

Hello! I'm new to Arduino and trying to build a series of moving cogs attached to micro servos, which are triggered by an Arduino controlled Ultrasonic Sensor. My code so far looks like this #include #define trigPin 12 #define echoPin 13 #define CONNECTED_SERVOS 9 // macro just adds two - the first servo is attached to digital pin 2, this gives us upto 12 servos - digital 2 to 13 #define SERVO_TO_PIN(x) (x+2) Servo myServos[CONNECTED_SERVOS]; Servo myservo; void setup() {   Serial.begin (9600);     pinMode(trigPin, OUTPUT);   pinMode(echoPin, INPUT);     // attach the servos   for(int nServo = 0;nServo < CONNECTED_SERVOS;nServo++)   {     myServos[nServo].attach(SERVO_TO_PIN(nServo));   }    } void loop() { int duration, distance,pos=0,i;   digitalWrite(trigPin, LOW);    delayMicroseconds(2);   digitalWrite(trigPin, HIGH);   delayMicroseconds(10);   digitalWrite(trigPin, LOW);   duration = pulseIn(echoPin, HIGH);   distance = (duration/2) / 29.1;    Serial.print(distance);    Serial.println(" cm");   for(int nServo = 0;nServo < CONNECTED_SERVOS;nServo++)   {     if (distance >0 && distance < 30)   {      myServos[nServo].write(180);   }   else{     myServos[nServo].write(180);   }      }          But it isn't really the code that I am having a problem with. I know that I need an external power supply for the 9 servos but I am having difficulty figuring out what is best. I have tried attaching a 9V battery to the power and ground lines of the servos and it hasn't quite supplied enough, only making them move a little when i get closer to the distance sensor, then jittering about a bit before completely stopping. I have got a Switching Power Supply plug that has an output of 12V which I can use and plug directly into the Arduino? I also have voltage regulators that have an output of 5V available. Could somebody recommend how to wire these supplies up for the servos? Any help would be much appreciated!  Thanks

Posted by j_olo 3 years ago


Back that Arduino Up

Hello instructables, I am a student at High Tech High North County and we are working with arduinos in our Engineering class. Our project is to create a reverse sensor for a motor vehicle, we are having trouble finding a way to set up the sensor with the arduino. The sensor we are using is HC-SR04 Ultrasonic Ping range sensor. If you have any idea on how to do this, please reply. Thanks.

Posted by hthnc-student 5 years ago


HDMI from LCD connector

Hi, At work I have an ultrasonic testing instrument that displays the signal on an LCD (640x480). I also have a HUD (head mounted display) that requires a HDMI input. The only way I can think of getting the 2 working is to put a camera over the display and send that to the HUD. Would anyone know of a way to connect something to the LCD ribbon directly and convert it to HDMI? Many thanks for any help provided.

Posted by mknorr 10 months ago


LED display

I have a Gill ultrasonic wind gauge which transmits data intermittently (after each race) showing the actual windspeed -9.9 to +9.9 range It outputs the data at 9800/7/even/1 the data is in a series of bytes with the data in the middle of the series I dont know what the other bytes are for I want to display the data automatically in a LED (segment) display, the display changing each time the gauge transmits new data will an 'ordinary'LED controller allow me to do this? thanks david cooke 

Posted by DavidC69 3 years ago


Adruino cyclone dust sensor

I am looking for suggestions for building a wood chip / dust level detector for the collection can of a cyclone vacuum. I have tried using uv detectors, they get covered in fine dust and become in-effective.  I am thinking of using the ultrasonic sensor. My objective is to detect the level of chips and dust collected in the debris can, and sounding an alarm when the can gets to the full point. Any help on this subject would be appreciated.  I am new to working with these Adruino controllers and not real familiar with writing the Sketches for this. Thanks Don

Posted by Don D 9 months ago


Sonic data transmission?

This is just an idle thought, but I was reading a couple of ROV builds, and the one thing they all have in common is a tether - it's a fact of the world that very little in the way of radio signal can penetrate water. So... Could you send control signals to an ROV via sound or ultrasound?  Could beeps and clicks carry enough data, far enough, and clearly enough, to control an ROV? Even more fun, how much data could come back? Sensor readings? Images? Just throwing it out there for you to toy with, but it would be fun to have genuinely-remote control for this class of robot.

Posted by Kiteman 2 years ago


uli lab stations

i have some vernier corperation uli lab iterfaces for sale with sensores and some documentation but no software i only have a few so there first come first serve. if anyone on here has access to the sofware or knows of some free software that will work it would be much apprishiated. im thinking about $30 US plus s&h; for the whole set sensors and all . this includes the interface and cables what documentation i have and the fallowing sensors. Heart rate, ultrasonic motion detector, magnetic field detector, mic/amplifier module, regular and fast response temp probes, and a force probe

Posted by juggalo_assassin183 8 years ago


Effectiveness of sugar as a piezoelectric material

Most of the sites discussing piezoelectricity mention that sugar crystals can be used, but I have not found any examples of them being used. I've just tried it with about a 1cm chunk of low quality (conglomerate of small ~3mm crystals) crystal, and got a good 100mV wave when tapped with a pencil. I've not tried applying a signal to it yet, and some better single crystals are growing at the moment, so I was wondering how well it works compared to commercial piezoelectric compounds. I've not done anything like this before, so if anyone knows where I can find information of the best way to mount and apply a signal to the crystal, it would be appreciated. Thanks in advance.

Posted by The Skinnerz 6 years ago


My First Arduino Object Avoiding Robot!!!

Hey guys I am making my very first robot and have been researching for a while now......i have the parts but i am blank on what to do with them. I have:  2 DC motors 1 Ultrasonic sensor Arduino Uno 1 L293D (IC) 1 breadboard jumper cables 1 mini servo a power source for 4 AA batteries Robot chasis I want that the robot goes front and stops when object is near then looks right and left and moves accordingly..... Now keep in mind that i have 2 DC motors and NOT SERVOS so how should i program this or connect all the parts so that it works......PLZZZ do help its urgent.

Posted by mani_97 3 years ago


Smart board Using distance meters.

Hello! My name is Muneer. I was wondering whether this concept of making a smart board would work(shown in image). The idea is to use two distance meters to measure distance ‘a’ and distance ‘b’ from the transmitter in the pen to the top corners. Distance c is fixed and known. Using the distances, the x and y distance should be workable from the formulas(shown in image) I guess. I have a few concerns and require your expert opinion, a. How can we construct the distance meter (IR? Ultrasonic? Any available schematic...etc) b. Converting the x and y distances to pixel information c. Interfacing the board to a computer, possibly giving the input from the smart board directly as a mouse input. or if you could suggest other practical ways. Could you please help me with this? Thanks.

Posted by muneersn 9 years ago


[newsletter] Ultrasonic Batgoggles, Miracle Fruit, Giant Lite Brite...

Sign-up for our newsletter here. May 29, 2008 Welcome back! Have a cool signature for your user name? Share it with the community at this signature collection post. Lots of people have been ordering shirts from our new store. The free shipping only lasts through tomorrow so order now!Want to win some magnetic photo rope to display your pictures? Enter our caption contest!Coming soon... a new contest based on travel tips. Check out these cool Instructables! Go Online without Getting Snooped: Tor (The Onion Router) Want to get online on a network that likes to snoop? Try using TOR. posted by w1n5t0n on May 27, 2008 Ultrasonic Batgoggles Experience echolocation and learn to "see" with your ears. posted by suneth on May 27, 2008 Cheap, easy, low-waste platform bed Build a queen size platform bed with storage space underneath for less than $30, in about an hour, and learn some basic carpentry skills in the process. posted by aeray on May 19, 2008 Make a $5.00 "Space Pen" for your wallet Put handy space pen in your wallet so that you can write upside down whenever you want. posted by doctor_wu on May 25, 2008 How to Build a Hank Drum Build your own unique drum from a propane tank with just a few basic tools. posted by Hermes on May 20, 2008 Make you own wearable arc reactor and be cooler than Tony Stark! Want your own arc reactor like the one in Iron Man? Here's how to do it. posted by mspark400 on May 26, 2008 Giant Lite Brite The original Lite Brite was cool, but a 4' x 4' version is better and allows for multiple kids of all ages to play at once! posted by noahw on May 22, 2008 Make Biodiesel! The biodiesel story continues with the method of making the biodiesel itself. posted by drinkmorecoffee on May 22, 2008 Win amazing LED POV kits! Closes for entries on Sunday! Green Science Fair! Lightbulb "green"house The humble light bulb may be on its way out, but instead of trashing them you can give them new lives as tiny greenhouses. posted by LinuxH4x0r on May 26, 2008 Growing Your Own Miracle Fruit A guide to help anyone willing to grow the exotic and highly rewarding Miracle Fruit. posted by Putzer on Jun 27, 2007 Shoot the Rainbow: Skittles Vodka Loved Skittles as a kid and want to enjoy the flavors in a new way now that you're an adult? Skittles vodka may be just the thing for you. posted by applesticker on May 27, 2008 Dell Laptop into Digital Photo Frame That outdated laptop may be too slow for your new applications, but it can still serve as a sweet photo frame. posted by vorin on May 24, 2008 Now go make something awesome, and I'll see you next week! - Eric

Posted by fungus amungus 10 years ago


Book: Elelctronic Gadgets for the Evil Genius Updated - added a (COMPLETE) Table Of Contents

This book has several high voltage gadgets to build, and if you are familiar with the "evil genius" series, presents a plethora of information on each one.  There are 28 projects in all;  and the front cover also says:  * illustrated instructions & schematics * lists of materials & part suppliers * science & math behind each project The author is Bob Iannini The book cost me $24.95 (USA) new.  It will cost around $3 to ship in the USA, so if anyone feels it is worth about $15-$18 that would be grand; otherwise, make a reasonable offer. I underlined one word in the introduction, but have made no other marks in the book. My reason for selling it is that I do not see any way in the foreseeable future, of me building any of this kind of project. Contact me by way of PM  to work out the details if anyone wishes to purchase it. Thanks ahead of time.    Table of Contents: There are 28 chapters (one for each project)   Chapter One:  Anti-gravity Project   Chapter Two: Low Power Electrockenetic gun   Chapter Three: High Energy Pulser   Chapter Four: Mass Accelerator   Chapter Five: Plasma Thermal gun   Chapter Six: Wire Exploding   Chapter Seven: Magnetic Can Crushing   Chapter Eight: Hand-held Burning CO2 gas LASER   Chapter Nine: Hand-held Burning Diode LASER   Chapter Ten: Long Range Optical LASER   Chapter Eleven: Hand-held Ultrabright Green LASER   Chapter Twelve: LASER  Property protection Fence   Chapter Thirteen: LASER window Listening Device   Chapter Fourteen: 12"  Spark Tesla Coil   Chapter Fifteen: Two inch spark Tesla w/timer   Chapter Sixteen: Tesla Plasma & Ion projects     Chapter Seventeen: Sold State Tesla Coil   Chapter Eighteen: 30 "  Spark Tesla Lightning generator   Chapter Nineteen: Jacob's Ladder   Chapter Twenty: Plasma Tornado Generator   Chapter Twenty one: Plasma Light Saber   Chapter Twenty two: Ion Ray  & Charge gun   Chapter Twenty three: See in the Dark project ( IR night vision)   Chapter Twenty four: Fish stunning & Wormer (brings em to the surface of the ground) project   Chapter Twenty five: EMP Generator   Chapter Twenty six: Ultrasonic Microphone   Chapter Twenty seven: Phaser Pain field gun   Chapter Twenty eight:  Pain field Property protection guard          

Posted by Goodhart 8 years ago


<5mm distance sensing, <100micron accuracy, GUI, RasPi or Arduino?

Hi there, I am trying to keep my hardware/ coding skills alive and spruce up my bicycle wheel truing stand. I need to figure out the required hardware + software for the following: I want to build a non-contact distance measurement sensor system and get the output "into" my computer for display in a graphical user interface. I know I could omit the latter step with going directly onto a mini-LCD screen, but trying to use this a learn-another-programming-language learning experience (I've coded Matlab galore, pondering Python for this project). General system components: Sensor - [something - RasPi or Arduino I guess] - laptop (running debian) - GUI displaying continuous sensor reading Sensor: I've web-searched the hell out of this, but not finding anything quite answering my questions. I want to continuously measure the distance from the sensor to a bicycle wheel rim braking surface. Material is aluminium, shiny, though not smooth. Biggest problem with the web-search is being swamped by proximity sensor results (on/off) rather than a distance proportional output signal and much lower resolution projects. I rule out IR or optical sensing, now stuck between ultrasonic and inductive sensing, though tending to the latter for a faster response/adjustment to change time. Sensor criteria (other than reasonable $$): - total sensing range: ca.5mm - sensing accuracy 10 to 100micron/ 0.01 to 0.1mm - don't ask if that's needed, a bit of overkill, I know, but a bit of OCD doesn't do any harm, eh? - fast-ish sampling rate (so that when I turn the wheel, the number on the screen updates nice and fast, guess >25Hz is sufficient). [Something - RasPi or Arduino]: I know that I could omit the laptop GUI part (mini-LCD, LED array, etc), but keen to learn/ practice a little Python with this project, so I guess I am tending to the RasPi, but I am open minded. All I want is the analogue sensor out to end up as a digital reading "inside" my computer to be passed to my GUI as a reading. Essentially a mini A2D converter. Not fussed whether the output is in actual distance units or in arbitrary units/ current units (I guess the sensors put out a proportional current signal?). GUI: Depending on the above, how do I best get the signal "into" a Python program? A moderate fast sample rate >25Hz should suffice.  Any help with this would be greatly appreciated! LaserCycle

Posted by lasercycle 3 years ago


Automatic Irrigation using d1 mini

Hi Everyone, I reviewed different automatic irrigation system projects here in instructables and other sites as well and i decided to gather parts to do a simple small project myself. One thing that comes hard is the programming part as I don't know any programming language. I'm looking for some help with code merging, explanation and some general guidance. Could you please let me know, point me to right direction and tell me what you think and if requirements are actually achievable? What I would like to achieve: Intention of this project is to have manual and auto irrigation system which will: 1. Measure soil moisture and dependently on the value activate the usb pump which will water the plant (preferably analog output that will show the measurements in %) 2. Manual activating the pump via hardware button and via mobile phone with internet connection 3. Distance sensor which should measure how much water is left in the tank 4. Email notification with info when to water the plants and soil sensor data regardless of the automatic process that has already started 5. Email notification with info about the water in the tank when it’s near empty 6. Dashboard preferably inside the network (not using third party like blynk or others) with access from the internet (I have QNAP that I think can be used). 7. If possible – have amazon echo (Alexa) read the sensor data to tell me the values and comment if the plant should or shouldn’t be watered or the tank should be refiled or not as well as ability to ask Alexa to start or stop the irrigation Hardware: D1 mini: https://wiki.wemos.cc/products:d1:d1_mini Wemos V2 Relay shield: http://hobbycomponents.com/shields/865-wemos-v2-relay-shield My relay is slightly modified: 2 small wires soldered to the vcc and ground so that when it receives the signal on d1 pin it opens and current flows to female usb connector supposedly activating the usb water pump. All this can be stacked together even with soldered wires YL-69 sensor: http://www.oddwires.com/yl-69-soil-hygrometer-humidity-soil-moisture-detection-sensor/ Ultrasonic Distance Sensor (HC-SR04): https://thepihut.com/products/ultrasonic-distance-sensor-hcsr04 USB mini water pump: www.goo.gl/yUABDd Button x4 if needed: Board x4 if needed: sample codes used in other projects: https://randomnerdtutorials.com/guide-for-soil-moisture-sensor-yl-69-or-hl-69-with-the-arduino/ https://create.arduino.cc/projecthub/nekhbet/using-the-yl-39-yl-69-soil-humidity-sensor-with-arduino-968268 https://community.blynk.cc/t/irrigation-relay-with-timer-esp8266-wip/700 Alexa enabled homemade cat feeder example: https://www.hackster.io/darian-johnson/alexa-powered-automated-cat-feeder-9416d4 Thank you very much in advance for your help and support.

Posted by wube 1 year ago


Help needed into building a special type of proximity sensor...

Currently i am working on my final project for my study as an industrial designer. at the moment i am developing a product which will need to be triggered and activated by the motion of human hands. the product looks like a simple 6 inch cube which permanently rests on one side. the top side is reserved for other interaction. so what i am dealing with are the 4 remaining sides which surround the cube. the idea is that the closer a moving object [in this case a human hand or body] comes to one of the sides, the brighter the LEDs become. the range of this should be about 0 to 10 inches. the LEDs are not a problem, i just need a sensor that gives me a analog signal i can work with. and preferably this sensor will be behind a layer of around 0.2 inches of plastic material. does anyone know how this can be done? i just can't seem to find the right thing for my project. i heard an ultrasonic sensor might do the trick...but will that work stuffed away behind plastic? this would be great help for me, because i do not have a lot of knowledge on electronics to figure this out on my own. so anyone out there who can help me: i am on my knees right now hoping for a solution...any ideas will do!

Posted by igod 11 years ago


Selection of presence sensor

Hi guys. For one of my university projects I need to detect the presence of a person in the shower. In order to do that what I have in mind is use a proximity sensor. If the target is in a distance range (let's say 20 to 50 cm) It will assume that the person is in the shower when the distance measure is no longer in this range then it will mean that the person left the shower. I need to detect all the time of the person in the shower (meaning when he/she gets in and then out). I have read a lot of info and forums to properly choose the type of sensor. However I still don't have a clear answer. About the Ultrasonic proximity sensors I know that they are cheap and more accurate by it can be affected by Temperature, humidity and some ambient noise, all of them which happen in a shower. The other option an Infrared one gets affected by lightning conditions and the surface of the target. The last option I checked is a PIR sensor I know it senses Temperature of the target, but I don't know if it will be affected by the running hot water and also is more expensive. In general, I don't know how the running hot water will affect the detection of the person in shower. Also,so again I don't know how this will work. Sorry for the huge amount of  questions, I am a little bit confuse with all the factors to have in mind. I am hoping someone out there can help a lost newbie like me and give me a suggestion. Thanks a lot :)

Posted by mcamiea 2 years ago


30 minute DIY AM particle-acceleration

Last fall, I verified an initial relationship of resonance between two bifilar wound wires (of any length). The predictable sequence resonates at the following levels - 20 Hz, 30 Hz, 50 Hz (and all multiples of these 3 frequencies). I used a Parallax Propeller Board - with PGEN 2.0 software from Innovationshop in Germany.   This software allows for a waveform built of 32 stacked frequencies to be created and amplified.   I have used it to successfully break the bonds of distilled water - as one of my earlier videos shows 2 years ago. JL Naudin calls it a "GEGENE machine" - but it is a simple, tabletop, particle accelerator.  His results can be found here:::  http://jnaudin.free.fr/wfcbooster/indexen.htm One of my earlier videos from May 2013 - can be found at YouTube - I just want to show people how this works.  It is a 4 minute explanation of open-sourced Patent 512,340.:::   https://www.youtube.com/watch?v=HHxK1VWrXcM The materials:: 1 - 1800 watt induction cooktop (iron, copper, or 3-ply stainless cookware is required on these types of devices) 2.  50 feet of 14 AWG speaker wire 3.  2-10 count of 500-watt halogen lightbulbs. 4.  wire, solder & connectors for the wire-ends. 5.  1 stainless-steel HHO DC electrolyzer tank.  6.  Cooking Pan - or light fixture (to hold light bulbs). 7.  High Voltage diodes (500 Volts or higher)

Posted by jabel4 3 years ago


Fun and experiments with water - what is your favourite?

We all know that a fight with water bombs or building a water rocket with your kids can be tons of fun. But what about the things that other people might not even know about? A water drop generator for example can produce thausands of volts in electricity! Water can travel up through capilary actions! Water is even used to break massive rocks in cold climates clean and without the need for explosives! Even the simple task of freezing water for ice cubes is now a science of its own for most serious bartenders... One of my old time favourites involving the often weird proerties involved a very small BW TV and a fishtank. After a lot of cleaning and rinsing I placed a TV into a spare fish tank filled with destilled water. Some other tiny tanks were filled for comparison with tap water and other household liquids. Switching a LED on by placing some electrodes in water without a battery was easy to explain as a battery was just created. Showing that copper can tavel from a wire onto a coin was fun too. But most people got really stunned seeing a movie or the new play on a TV under water - after all we just learned water and electricity is a big no no... What is your biggest "trick" or experiment involving water that noone knows about?? I am working on ultrasonic HF/HV experiements trying to figure out why it seems that under certain conditions the water "produces" more energy in the form of gas, steam and light than what is put into the system from the electrical side of things. Once I can replicate some experiments and understand them I will post my results, so give a few decades please ;)

Posted by Downunder35m 8 months ago


Serial communication between PC and picaxe 28X2

Hi, I am having problem in communicating with PC with Picaxe 28x2. Please help me in solving this problem as it is a very important project My aim is to send the values of w1 and w2 variables ( values of the ultrasonic range sensors 1 and 2 ) to the PC and display them with the help of VB my picaxe code is ..., #picaxe 28x2 main: pulsout C.1,2 pulsin C.1,1,w1 pause 10 pulsout C.2,2 pulsin C.2,1,w2 pause 10 sertxd(#w1,#w2) pause 100 goto main and my VB code is , Imports System.IO Imports Strings = Microsoft.VisualBasic Public Class Form1 Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Integer) Dim WithEvents serialPort As New IO.Ports.SerialPort Dim PicaxeRegisters(0 To 1) As Byte Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Timer1.Enabled = True Timer1.Interval = 5000 End Sub Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick Call SerialTxRx() End Sub Sub SerialTxRx() Dim labelstring As String = "" Label1.Text = "" If serialPort.IsOpen Then serialPort.Close() End If Try With serialPort .PortName = "COM1" .BaudRate = 9600 .Parity = IO.Ports.Parity.None .DataBits = 8 ' 8 bits .StopBits = IO.Ports.StopBits.One .ReadTimeout = 1000 .Open() .Read(PicaxeRegisters, 0, 2) .Close() End With For i = 0 To 1 labelstring = labelstring + " " + Str(PicaxeRegisters(i)) Next Label1.Text = labelstring Catch ex As Exception MsgBox(ex.ToString) Label1.Text = "Timeout" End Try End Sub End Class I have not included the write command, since I have not included qualifiers in the picaxe code. The Picaxe chip is sending the values ( I used the terminal in picaxe programming editor to realise this) but the visual basic is not displaying me the actual values sent by the picaxe chip. It is showing random values instead ... So i think that there is an error in the VB code. PLEASE HELP AS SOON AS POSSIBLE .. Thank You 

Posted by santhoshR 7 years ago


RoboGames Robot Contest Winners

Instructables and RoboGames are happy to announce the winners of the Robogames Robot Contest! With all of the fantastic robot entries out there, the task of creating your own robot army has just gotten a lot easier. We'd like to send a big "thank you" to everyone who took the time to share their knowledge and expertise with the rest of the world.Judging was done by David Calkins, Simone Davalos, Eric Wilhelm, Robin Lemieux, Robots Dreams, and Sb.And now, on with the winners! Second Prize The authors of these Instructables will each receive a Robot prize package including both Instructables Robot and RoboGames t-shirts, and a selection of robot-themed stickers. Category: Locomotion Pneumatic Animatronic Lego Snake Inchie BiPed robot V-3 The Manta Drive: proof-of-concept for an ROV propulsion system How to build the one motor walker! Category: Manipulators Mechanical Dry Erase Board How to build a simple robotic arm from Lego Mindstorms NXT? extendo hand Rubber band shooter / minifigure launcher Really, REALLY Easy USB Motor! Category: Brain Experimental Robot Platform Building Small Robots: Making One Cubic Inch Micro-Sumo Robots and Smaller RC truck robot conversion Ard-e: The robot with an Arduino as a brain Beginning LCDs Category: Sensors Ultrasonic Batgoggles DIY lego light sensor infrared ground/object sensor for robot navigation robot movement distance control fischertechnik Easter Egg Robot Category: Aesthetics WowWee's Elvis Alive to The Elivinator Project Wall-E Robot How to design and build a combat robot K'nex Programmable Automaton How To Build Your Own Instructables Robot Assistant Category: Reuse & Recycling Individuality Bot Build Your Own Butler Robot!!! - Tutorial,Photos, and Video How to Build a Robot - The BeetleBot v2 ( Revisited ) The Rock SOCBOT - the next generation vibrobot First PrizeThe author of this Instructable will receive a RoboPhilo Walking Android kit! Plus the Robot prize package including both the Instructables Robot and RoboGames t-shirts, and a selection of robot-themed stickers. Wall-E by 4mem8 Grand Prize The author of this Instructables will receive a trip to the June 2009 RoboGames in San Francisco, CA! Includes airfare for one from anywhere within the continental US, 4 nights in a hotel near the event, and VIP access/entry fees. Experimental Robot Platform by societyofrobots

Posted by fungus amungus 10 years ago


Food Creator and dispensor

This project is currently in the research stage. Having been reading the books 'Zero to Maker' by David Lang (OpenROV) and 'The Toaster Project' by Thomas Thwaites I have realised what I need is a project with a goal to take me out of the Arduino blinky light and solder kit zone, in to real making/hacking. Lang suggests an 'Unknown Project' which as I understand it is one that has been unexplored or under-explored, and he also suggests that using a popular forum to log, share and discus ideas would help the process along. So my idea, is an open hardware food creating machine, that will produce a large array of food, from a limited array of ingredients (approx 50) that can be made easily, and a ingredient markup language. 3d food printers in current development are either impractical or unappealing to me. They range from candy makers, ones that still need to be hand finished and cooked or the one publicised for receiving NASA funding recently used dead bugs. They seem all to focus on the gimmick, and not the food, and I like food. The other approach is the barbots, which seem to mostly perform flawlessly, but are unable to produce food. So my approach is to work through the process logically and break it down to sub projects. Design meals by hand using the limited ingredients for proof of concept, choose the ingredients to provide the widest possible range of nutrients and transpose the recipies to psudocode that can be easilly transformed in to a markup language later. Design a process for mixing and cooking ingredients. I envision a system of different food processors, steamers, boilers etc. and a range of extruding dies. Design a self cleaning system. Possibly ultrasonic or ionic. To that end, here is my preliminary list of ingredients. sugar, salt, oil, water, co2,Alcohol 37.5%,pectin,bicarb,nutritional yeast coffee,tea,mint,cocoa,garlic,oregano,chilli powder, paprika rice,soya,corn,wheat lemon extract,orange extract,tomato powder,dried apple,dried carrots,dried peas,potato powder. These ingredients can be used to make among other things, sausages, burgers, curry's, pasta, fries, soups, cereals, 'cider', cocktails, deserts, sodas, sauces, egg cheese and milk substitutes. So that's my plan. What do you guy think, and what ingredients would you add and why? And what would you call it? There are loads of things I left out as everything will change as I work through the process. Thanks for reading, Haydn

Posted by HaydnJones 4 years ago