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Motorcycle Tail Tidy? (Fender Eliminator) Yamaha XT125X?

Anyone got any idea how I can make one from scratch? I feel like tidying up my bike and it's almost impossible to find one to buy for my bike (not like I would buy one anyway)  If anyone has any ideas then I would be more than grateful to hear them!

Question by w0bb  


What is this "Radio Engineering Laboratories Wavemeter Cat. 125"? Answered

I do not know the history of this device or where we got it from. The text on top has an "REL" logo (Radio Engineering Laboratories) and "WAVEMETER CAT. 125 SER. NO. 2041". There are three big coils on the compartment with different amounts of turns on them, and they mount to the screw things on the side. The awesomely cool knob goes from 0 to 100, but spins all the way around...it may have come loose inside. The lightbulb-looking thing has a standard Edison base, but isn't connected, just poked into the hole, I think the socket fell out. It looks like a neon lamp of some sort. There was also a laminated card in the box, a scan is attached. What the heck is this thing? All Google came up with was a court case where someone sued REL in 1934.

Question by CameronSS    |  last reply



Would a 125 watt volume air pump be powerfull enough to do this trick?

I thought i'd build something like this on the basement floor and thus absorbing as much coolness as it can while the attached air volume pump circulates air through the tubing from and to the livingroom above. The question i have is: Does a volume air pump have enough power to push air into 20 meters of hose? I consider using a compressor but it makes a terrible noise and probably does only a few liters per minute.

Question by gijzo    |  last reply


What RFID frequencies do these common products use? Answered

--- Note --- This is not for any odd malicious purposes, I'm not that interesting, I will be using this to see what products that I already own I could use to open my garage door! --- Question --- Can you name the frequencies (and encoding methods for an extra point) of the following common products? ~ Oyster Card ~ European Passport ~ Barclays Card ~ Mastercard PayPass ~ Travel Lodge Key ~ RFID MicroSD ~ Parking Payment Systems ~ J-Chip Race Timer ~ Ski Pass Give it a go, the highest scorer will get "Best Answer" and a nice virtual pat on the back! Thanks AMouse197

Question by aricooperdavis    |  last reply


Arduino alarm with LDR and RFID disable feature?

Hello. I understand that this sounds like an unbelievably simple idea, and so I thought it would be. I have successfully written this first code, that detects an RFID tag and sounds a beep, but I am struggling with getting the second to work. Any ideas? First Code -- this one WORKS! Code: /*------------------------------------------------------------------ This is a sample code for RDM630 RFID reader by Spekel(Spekel.se) This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. http://creativecommons.org/licenses/by-nc-sa/3.0/ -------------------------------------------------------------------*/ #include #define rxPin 2 #define txPin 3 #define SPKR 7 char code[20]; int val = 0; int bytesread = 0; //------------------------------------ //create a Serial object RFID SoftwareSerial RFID= SoftwareSerial(rxPin, txPin); void setup() {   Serial.begin(9600);   Serial.println("Serial Port Activated");   RFID.begin(9600);   Serial.println("RFID Reader Activated");   Serial.println("Scanning...");   pinMode(rxPin, INPUT);   pinMode(txPin, OUTPUT);   pinMode(SPKR, OUTPUT); } void loop() {   val = 0;   bytesread = 0;   while(bytesread < 12)   {     // read 12 digit code     val = RFID.read();     if(val == 3)     { // if header or stop bytes before the 10 digit reading       break; // stop reading     }     if(val != 2)     {       code[bytesread] = val; // add the digit       bytesread++; // ready to read next digit       code[bytesread] = '\0'; // add the NULL     }   }   if(bytesread >= 12)   { // if 12 digit read is complete     Serial.print("RFID Detected - Tag: [");     for(int i=0; code[i]!='\0' ; i++)     {       Serial.print(code[i]);     }     Serial.println("]"); //print the whole 13 bytes     for (int i=0; i<200; i++) {  // generate a 1KHz tone for 1/2 second   digitalWrite(SPKR, HIGH);   delayMicroseconds(300);   digitalWrite(SPKR, LOW);   delayMicroseconds(300);   }     Serial.println("Scanning...");   } } --- You didn't even need that but I assume you understand the setup now --- The second code is exactly the same, apart from it contains and LDR that decides whether or not the value it receives has changed enough to sound the alarm and does so, allowing the alarm to be deactivated by an RFID. This does NOT check to see if the RFID tag is the correct one, that is to be written in later. At the moment I get a constant beeping whether or not the RFID tag is used to dissarm, or there is no beep at all. Any ideas?? ^^ Please actually read this before answering my Question!! Code: #include #define SPKR 7 #define rxPin 2 #define txPin 3 char code[20]; int val = 0; int bytesread = 0; int lightPin = 1; int variable = 0; int secondVariable = 0; int differenceVariable = 0; int ledPin = 13; SoftwareSerial RFID= SoftwareSerial(rxPin, txPin); // --- Initiation Complete --- void setup() {   Serial.begin(9600);   RFID.begin(9600);   pinMode(rxPin, INPUT);   pinMode(txPin, OUTPUT);   pinMode(SPKR, OUTPUT);   variable = analogRead(lightPin); } // --- Setup Complete --- void loop() {   variable = analogRead(lightPin);   Serial.println(variable);   delay(50);   secondVariable = analogRead(lightPin);   differenceVariable = variable - secondVariable;   if ((differenceVariable^2) > 200) {           val = 0;       bytesread = 0;       while(bytesread < 12) { // read 12 digit code           val = RFID.read();           if(val == 3) { // if header or stop bytes before the 10 digit reading               break; // stop reading           }           if(val != 2) {               code[bytesread] = val; // add the digit               bytesread++; // ready to read next digit               code[bytesread] = '\0'; // add the NULL           }           for (int i=0; i<200; i++) {  // generate a 1KHz tone for 1/2 second               digitalWrite(SPKR, HIGH);               delayMicroseconds(300);               digitalWrite(SPKR, LOW);               delayMicroseconds(300);           }         }       if(bytesread >= 12) { // if 12 digit read is complete           Serial.print("RFID Detected - Tag: [");           for(int i=0; code[i]!='\0' ; i++) {               Serial.print(code[i]);           }           Serial.println("]"); //print the whole 13 bytes           for (int i=0; i<200; i++) {  // generate a 1KHz tone for 1/2 second               digitalWrite(SPKR, HIGH);               delayMicroseconds(300);               digitalWrite(SPKR, LOW);               delayMicroseconds(300);           }           Serial.println("Scanning...");       }    } } Thank you very much for any help that you can give, AMouse197 (I accidentally posted this in the wrong forum so have moved it)

Question by aricooperdavis    |  last reply


Does anyone know how to make a homemade mechanism for a rotisserie that would turn a 125 pound hog?

I am thinking of using modified jack stands on the ends to hold up the spit or pole the hog will be on. I need something simple but safe. Thanks

Question by tall1smokey    |  last reply




What next?

I have about 200nos of old audio cassettes and about 100-125 nos of VHS cassette now i am fed of them should i through them all or any thing useful could be thought off?

Question by vishesh    |  last reply


Shutter speed on Canon Ixus?

Hi guys, l'd like to ask if it is possible to make the shutter speed faster (eg. 1/1500 or something)  on the Canon Ixus 125 HS camera. If so, I'd like instructions for it and images if possible Thx in advance 

Question by NebulaIX    |  last reply


New here, first time posting. I want to add to the arduino insect bot

Well I am new here and this is my first post Well I have build the arduino insect bot from the book Arduino bots and gadgets. It is in the picture. I have it working but I want to add a touch sensor and attach it to the shell. I have an idea on how to build it. I would use a small button attached to the shell with the lie going to analog A0 pin. This would stop the robot by centering the servos and giving it the ability to stop when the shell was pressed down. Now the program is here. #include Servo frontServo; Servo rearServo; int centerPos = 90; int frontRightUp = 72; int frontLeftUp = 108; int backRightForward = 75; int backLeftForward = 105; int walkSpeed = 150; // how long to wait between steps int centerTurnPos = 81; int frontTurnRightUp = 63; int frontTurnLeftUp = 117; int backTurnRightForward = 66; int backTurnLeftForward = 96; // Ping Distance Measure int pingPin = 4; long int duration, distanceInches; long distanceFront=0; //cm int startAvoidanceDistance=20; //cm long microsecondsToInches(long microseconds) {   return microseconds / 74 / 2; } long microsecondsToCentimeters(long microseconds) {   return microseconds / 29 / 2; } long distanceCm(){   pinMode(pingPin, OUTPUT);   digitalWrite(pingPin, LOW);   delayMicroseconds(2);   digitalWrite(pingPin, HIGH);   delayMicroseconds(5);   digitalWrite(pingPin, LOW);     pinMode(pingPin, INPUT);   duration = pulseIn(pingPin, HIGH);     distanceInches = microsecondsToInches(duration);   return microsecondsToCentimeters(duration); } void center() {   frontServo.write(centerPos);   rearServo.write(centerPos); } void moveForward() {   frontServo.write(frontRightUp);   rearServo.write(backLeftForward);   delay(125);   frontServo.write(centerPos);   rearServo.write(centerPos);   delay(65);     frontServo.write(frontLeftUp);   rearServo.write(backRightForward);   delay(125);     frontServo.write(centerPos);   rearServo.write(centerPos);   delay(65); } void moveBackRight() {   frontServo.write(frontRightUp);   rearServo.write(backRightForward-6);   delay(125);   frontServo.write(centerPos);   rearServo.write(centerPos-6);   delay(65);   frontServo.write(frontLeftUp+9);   rearServo.write(backLeftForward-6);   delay(125);     frontServo.write(centerPos);   rearServo.write(centerPos);   delay(65); } void moveTurnLeft() {   frontServo.write(frontTurnRightUp);   rearServo.write(backTurnLeftForward);   delay(125);   frontServo.write(centerPos);   rearServo.write(centerPos-6);   delay(65);   frontServo.write(frontLeftUp-+9);   rearServo.write(backLeftForward-6);   delay(125);     frontServo.write(centerTurnPos);   rearServo.write(centerTurnPos);   delay(65); } void setup() {   frontServo.attach(2);   rearServo.attach(3);   pinMode(pingPin, OUTPUT); } void loop() {   distanceFront=distanceCm();     if(distanceFront > 1){       if (distanceFront         for(int i=0; i<=8; i++) {         moveBackRight();         delay(walkSpeed);       }             for(int i=0; i<10; i++){         moveTurnLeft();         delay(walkSpeed);       }      } else {        moveForward();        delay(walkSpeed);      }     } } I would like to know what line of code to add to receive input from pin AO and center the servo stopping the robot.

Topic by DHTArduinoNerd    |  last reply


im a beginner bow hunter this year and I was wondering weather to use 100 gr. broadheads or 125 gr. plz help me!! argg!

I am using a factory setup PSE chaos (whisker biscuit, peep sight quiver usual stuff) I only have a string loop and doinker as accessories.

Question    |  last reply


sachs / ratary 30cc motorized bicycle hub converting to electric start

Hi i have looked for parts for this bike motor and have found a couple of importers as im an ozzy and found im gunna have to pay 125 for a pull start for it yet ive seen the mini motos have similar set ups and have easy start conversions and electic start converstions wich are much cheaper i also want an unrestricted cdi unit wich cost around the same could any1 tell me if there are any mini motos or thumptar parts ect that mite also fit as i no the 110cc thumptar motor was made from the design of the sachs motor for the 125 madass bike so there would have to be something to fit it besides these imported parts that cost an arm and a leg my bike is the 30cc ratary version .

Topic by jimmbay  


steel rod for K'nex 6ft Ferris Wheel

I'm trying to build the K'nex 6'Ferris Wheel. Does anyone know where I can get hold of the steel rod for this Ferris Wheel? Also, I need to collect about 125 Black 7.5" rods. Thanks in advance for any assistance. Jay

Question by jnajman    |  last reply


I'm going to join two 1.25 litre bottles together for a 80 psi water rocket. Is it ok?

I'm going to join two 1.25 litre bottles together for a 80 psi water rocket. Is it ok or should i make it more longer with a third bottle? what should be the ideal volume of the bottle for good efficiency at 80 psi?

Question by sharath rc    |  last reply


HELP

Good day, can anyone help please? My 7550 displays what seems to be a computer icon on the left hand side of the screen and a sewing machine on the right. I have pushed every single button, but it won't sew... Browsed through the owner's manual to no avail, disconnected all the cords and electrics, still nothing. The only thing functionning apart from the screen is the lightbulb. Many thanks!

Topic by texstyles    |  last reply


Amazingly Powerful SniperBow(its a cross bow sniper rifle)

This gun has insane power, mine goes around 125-150 feet on two relatively small rubber bands. i give most of the structural design, trigger and handle to drummerian and his xbow. i have simply made it more powerfull and a little nice looking.

Topic by iKill    |  last reply


Stylish birdfeeders - art and function

I came across these stylish birdfeeders via Notcot. Abstract, architecturally minimalist, functional... ... copyable. These are welded and painted steel, and presented as "affordable" (although I think it's a bit cheeky to call a bird table "Cheepie" and then charge $125...) - if you need a new bird feeder, have a look at Joe Papendick's Etsy shop.  If nothing else, you'll get inspriation...

Topic by Kiteman    |  last reply


500 Error when I view my settings

I get an error when I try to view my settings page (/account/settings). I think the site is upset that I am ageless. com.instructables.exception.InstructableRuntimeException: some problem with the settings... at com.instructables.webapp.account.SettingsAction.prepare(SettingsAction.java:235) ... Caused by: java.lang.NullPointerException at com.instructables.model.persistent.User.getAge(User.java:192) at com.instructables.webapp.account.SettingsForm.(SettingsForm.java:58) at com.instructables.webapp.account.SettingsAction.prepare(SettingsAction.java:125) ... 18 more

Topic by aneel    |  last reply


Construction Questions for Oomlout's "How to Make a Three Axis CNC Machine (Cheaply and Easily)"

Apologies if this is in the wrong area, but I am in the middle of constructing Oomlout's CNC machine and was hoping someone could answer my questions. It's not clear when cutting the Top Beam and Bottom Beam if the 1/4" holes are to be through holes or are .125" channels like the other 1/4" channels. From the pictures it looks like the top is a through hole channel, but the bottom couldn't be.  The bottom says "0.000" where the other channels say ".125", so I don't know if that's a typo, I can't figure it out.  Having never built this before and the channels are not yet cut in the shot of the cutout pieces here https://www.instructables.com/id/How-to-Make-a-Three-Axis-CNC-Machine-Cheaply-and-/step7/Cutout-Pieces/  it's impossible for me to figure out. Getting very eager to finishing this thing, I can't wait to start cutting things! Please help!!! Thanks, Bill M.

Topic by astronutski    |  last reply


I want a solar setup for my camper, which one should I get? Answered

I want to have a setup that will keep my batteries charged constantly. I have two batteries, and I live in sunny southern California, so sunshine is not an issue. I was thinking of a 125 Watt setup, but I am not sure if that's what I need.

Question by martzsam    |  last reply


usb via cat5, whats inside these commercial versions?

Hi there,I am aware of the instructables of using cat5 cables for usb extension.It says the max. length is sth like 30 ft / 10 meters.And I found out these are also commercially available.usb cat5 up to 40 m / 125 ftWhats in the housing? Does anyone know?Is it possible to build on your own sth like that?Greetsmoere

Topic by moere    |  last reply


ArduinoISP Does Not Support PORT Commands?

I was planning to make a drum machine that only requires two pins on the Arduino and so, wanted to use an AtTiny85v but it gives me errors like: 'DDRD' was not declared in this scope ArduinoBeats.cpp: In function 'void setup()': ArduinoBeats:97: error: 'DDRD' was not declared in this scope ArduinoBeats.cpp: In function 'void playKick()': ArduinoBeats:288: error: 'PORTD' was not declared in this scope ArduinoBeats:294: error: 'PORTD' was not declared in this scope ArduinoBeats.cpp: In function 'void playSnare()': ArduinoBeats:304: error: 'PORTD' was not declared in this scope ArduinoBeats:310: error: 'PORTD' was not declared in this scope ArduinoBeats.cpp: In function 'void playHat()': ArduinoBeats:320: error: 'PORTD' was not declared in this scope ArduinoBeats:326: error: 'PORTD' was not declared in this scope ArduinoBeats.cpp: In function 'void playCrash()': ArduinoBeats:335: error: 'PORTD' was not declared in this scope ArduinoBeats:341: error: 'PORTD' was not declared in this scope I had named the sketch ArduinoBeats so that explains all the ArduinoBeats stuff. Does anybody know how to add this command to the AtTiny library? Any help would be appreciated. Here is the code from Little Scale: /* Arduino Beats by Sebastian Tomczak 6 April 2008 */ // Working Variables byte byteA; byte byteB; int delayTime = 100; int barLength = 16; // Beats byte bar1[] = { 1, 0, 1, 0, 2, 4, 1, 2, 1, 0, 1, 0, 2, 1, 3, 0 }; byte bar2[] = { 1, 0, 1, 0, 2, 0, 1, 2, 1, 0, 1, 0, 2, 2, 2, 2 }; byte bar3[] = { 1, 3, 1, 3, 2, 3, 1, 2, 1, 3, 1, 2, 1, 1, 4, 4 }; byte bar4[] = { 1, 0, 1, 0, 2, 2, 0, 2, 2, 1, 1, 4, 1, 1, 4, 4 }; // Samples byte kick[] = { 127, 80, 42, 5, 165, 242, 241, 233, 128, 73, 48, 22, 127, 69, 55, 113, 151, 183, 209, 217, 223, 228, 233, 215, 161, 117, 91, 76, 65, 49, 37, 31, 31, 48, 83, 120, 146, 166, 183, 198, 206, 210, 209, 199, 178, 145, 111, 88, 78, 73, 69, 67, 72, 80, 88, 97, 109, 124, 137, 150, 163, 171, 174, 172, 168, 160, 144, 125, 114, 110, 108, 104, 104, 106, 109, 110, 112, 117, 124, 129, 135, 142, 145, 145, 143, 140, 137, 132, 128, 125, 122, 119, 118, 119, 119, 119, 118, 118, 120, 124, 126, 129, 132, 135, 137, 137, 135, 132, 131, 130, 129, 128, 126, 126, 124, 123, 121, 120, 120, 122, 123, 124, 126, 128, 129, 130, 130, 131, 131, 131, 130, 130, 130, 129, 129, 128, 126, 125, 125, 124, 124, 124, 124, 125, 126, 126, 128, 128, 128, 129, 129, 129, 129, 129, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 128, 127, 126, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126 }; byte snare[] = { 127, 215, 65, 212, 56, 102, 135, 122, 51, 201, 220, 46, 175, 80, 152, 95, 123, 116, 184, 155, 59, 122, 100, 161, 143, 173, 101, 155, 97, 73, 112, 98, 176, 96, 140, 77, 134, 109, 132, 149, 112, 149, 97, 161, 98, 151, 98, 155, 149, 112, 157, 103, 133, 106, 167, 97, 166, 108, 129, 124, 136, 146, 124, 136, 129, 150, 94, 130, 105, 141, 146, 128, 129, 99, 150, 121, 141, 99, 142, 116, 131, 114, 118, 143, 127, 143, 115, 144, 120, 137, 109, 129, 131, 139, 129, 113, 144, 119, 145, 117, 135, 129, 134, 136, 124, 130, 130, 139, 121, 136, 121, 132, 128, 127, 126, 122, 130, 126, 138, 120, 136, 122, 131, 123, 130, 128, 127, 128, 118, 132, 125, 131, 122, 131, 125, 131, 122, 126, 128, 126, 129, 121, 129, 123, 132, 129, 127, 131, 123, 128, 125, 130, 123, 131, 123, 128, 131, 129, 128, 126, 125, 124, 131, 121, 124, 129, 130, 126, 124, 126, 127, 130, 125, 126, 128, 126, 128, 126, 126, 126, 126, 125, 128, 126, 126, 126, 126, 126, 126, 125, 128, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 126, 128, 126, 127, 126, 128, 125, 127, 128, 128, 126, 126, 128, 126, 126, 128, 128, 128, 128, 128, 126, 128, 126, 126, 128, 128, 126, 126, 128, 128, 126, 126, 127, 126, 128, 126, 126, 128, 128, 128, 126, 126, 126, 128, 128, 126, 126, 126, 128, 128, 126, 128, 128, 126, 126 }; byte hat[] = { 127, 128, 225, 217, 99, 38, 61, 153, 152, 144, 133, 73, 122, 144, 65, 188, 87, 170, 164, 111, 122, 151, 114, 88, 174, 77, 140, 92, 122, 141, 156, 124, 121, 123, 126, 133, 132, 139, 119, 120, 127, 141, 130, 122, 129, 127, 132, 121, 139, 118, 130, 131, 129, 132, 130, 134, 126, 128, 130, 126, 122, 132, 129, 127, 131, 126, 128, 127, 126, 125, 127, 125, 128, 125, 128, 128, 127, 127, 126, 127, 128, 128, 128, 127, 127, 127, 127, 127, 128, 127, 127, 126, 127, 127, 128, 127, 128, 126, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 128, 126, 126, 128, 127, 126, 127, 126, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 126, 126, 126, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 126, 127, 127, 127, 127, 127, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 126, 126, 127, 126, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 126, 127, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127 }; byte crash[] = { 127, 128, 225, 217, 99, 38, 61, 153, 152, 144, 133, 73, 122, 144, 65, 188, 87, 170, 164, 111, 122, 151, 114, 88, 174, 77, 140, 92, 122, 141, 156, 124, 121, 123, 126, 133, 132, 139, 119, 120, 127, 141, 130, 122, 129, 127, 132, 121, 139, 118, 130, 131, 129, 132, 130, 134, 126, 128, 130, 126, 122, 132, 129, 127, 131, 126, 128, 127, 126, 125, 127, 125, 128, 125, 128, 128, 127, 127, 126, 127, 128, 128, 128, 127, 127, 127, 127, 127, 128, 127, 127, 126, 127, 127, 128, 127, 128, 126, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 128, 126, 126, 128, 127, 126, 127, 126, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 126, 126, 126, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 126, 127, 127, 127, 127, 127, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 126, 126, 127, 126, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 126, 127, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127 }; void setup() { DDRD = DDRD | B11111100; //In attempt to try and use an ATtiny, I got an error here } void loop() { for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar2[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar3[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar2[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar4[j]); } } // Playback Functions void playBeat(byte beat) { if(beat == 0) { for(int i = 0; i < 256; i ++) { delayMicroseconds(analogRead(0) + 1); } } else if(beat == 1) { playKick(); } else if(beat == 2) { playSnare(); } else if(beat == 3) { playHat(); } else if(beat == 4) { playCrash(); } delay(delayTime); } void playKick() { for(int i = 0; i < 256; i ++) { PORTD = kick[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; } void playSnare() { for(int i = 0; i < 256; i ++) { PORTD = snare[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; } void playHat() { for(int i = 0; i < 256; i ++) { PORTD = hat[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; } void playCrash() { for(int i = 0; i < 256; i ++) { PORTD = crash[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; }

Topic by blinkyblinky  


ArduinoISP does not support PORT Output commands?

I was planning to make a drum machine that only requires two pins on the Arduino and so, wanted to use an AtTiny85v but it gives me errors like: 'DDRD' was not declared in this scope ArduinoBeats.cpp: In function 'void setup()': ArduinoBeats:97: error: 'DDRD' was not declared in this scope ArduinoBeats.cpp: In function 'void playKick()': ArduinoBeats:288: error: 'PORTD' was not declared in this scope ArduinoBeats:294: error: 'PORTD' was not declared in this scope ArduinoBeats.cpp: In function 'void playSnare()': ArduinoBeats:304: error: 'PORTD' was not declared in this scope ArduinoBeats:310: error: 'PORTD' was not declared in this scope ArduinoBeats.cpp: In function 'void playHat()': ArduinoBeats:320: error: 'PORTD' was not declared in this scope ArduinoBeats:326: error: 'PORTD' was not declared in this scope ArduinoBeats.cpp: In function 'void playCrash()': ArduinoBeats:335: error: 'PORTD' was not declared in this scope ArduinoBeats:341: error: 'PORTD' was not declared in this scope I had named the sketch ArduinoBeats so that explains all the ArduinoBeats stuff. Does anybody know how to add this command to the AtTiny library? Any help would be appreciated. Here is the code from Little Scale: /* Arduino Beats by Sebastian Tomczak 6 April 2008 */ // Working Variables byte byteA; byte byteB; int delayTime = 100; int barLength = 16; // Beats byte bar1[] = { 1, 0, 1, 0, 2, 4, 1, 2, 1, 0, 1, 0, 2, 1, 3, 0 }; byte bar2[] = { 1, 0, 1, 0, 2, 0, 1, 2, 1, 0, 1, 0, 2, 2, 2, 2 }; byte bar3[] = { 1, 3, 1, 3, 2, 3, 1, 2, 1, 3, 1, 2, 1, 1, 4, 4 }; byte bar4[] = { 1, 0, 1, 0, 2, 2, 0, 2, 2, 1, 1, 4, 1, 1, 4, 4 }; // Samples byte kick[] = { 127, 80, 42, 5, 165, 242, 241, 233, 128, 73, 48, 22, 127, 69, 55, 113, 151, 183, 209, 217, 223, 228, 233, 215, 161, 117, 91, 76, 65, 49, 37, 31, 31, 48, 83, 120, 146, 166, 183, 198, 206, 210, 209, 199, 178, 145, 111, 88, 78, 73, 69, 67, 72, 80, 88, 97, 109, 124, 137, 150, 163, 171, 174, 172, 168, 160, 144, 125, 114, 110, 108, 104, 104, 106, 109, 110, 112, 117, 124, 129, 135, 142, 145, 145, 143, 140, 137, 132, 128, 125, 122, 119, 118, 119, 119, 119, 118, 118, 120, 124, 126, 129, 132, 135, 137, 137, 135, 132, 131, 130, 129, 128, 126, 126, 124, 123, 121, 120, 120, 122, 123, 124, 126, 128, 129, 130, 130, 131, 131, 131, 130, 130, 130, 129, 129, 128, 126, 125, 125, 124, 124, 124, 124, 125, 126, 126, 128, 128, 128, 129, 129, 129, 129, 129, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 128, 127, 126, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126 }; byte snare[] = { 127, 215, 65, 212, 56, 102, 135, 122, 51, 201, 220, 46, 175, 80, 152, 95, 123, 116, 184, 155, 59, 122, 100, 161, 143, 173, 101, 155, 97, 73, 112, 98, 176, 96, 140, 77, 134, 109, 132, 149, 112, 149, 97, 161, 98, 151, 98, 155, 149, 112, 157, 103, 133, 106, 167, 97, 166, 108, 129, 124, 136, 146, 124, 136, 129, 150, 94, 130, 105, 141, 146, 128, 129, 99, 150, 121, 141, 99, 142, 116, 131, 114, 118, 143, 127, 143, 115, 144, 120, 137, 109, 129, 131, 139, 129, 113, 144, 119, 145, 117, 135, 129, 134, 136, 124, 130, 130, 139, 121, 136, 121, 132, 128, 127, 126, 122, 130, 126, 138, 120, 136, 122, 131, 123, 130, 128, 127, 128, 118, 132, 125, 131, 122, 131, 125, 131, 122, 126, 128, 126, 129, 121, 129, 123, 132, 129, 127, 131, 123, 128, 125, 130, 123, 131, 123, 128, 131, 129, 128, 126, 125, 124, 131, 121, 124, 129, 130, 126, 124, 126, 127, 130, 125, 126, 128, 126, 128, 126, 126, 126, 126, 125, 128, 126, 126, 126, 126, 126, 126, 125, 128, 126, 126, 126, 126, 126, 126, 126, 126, 128, 128, 126, 128, 126, 127, 126, 128, 125, 127, 128, 128, 126, 126, 128, 126, 126, 128, 128, 128, 128, 128, 126, 128, 126, 126, 128, 128, 126, 126, 128, 128, 126, 126, 127, 126, 128, 126, 126, 128, 128, 128, 126, 126, 126, 128, 128, 126, 126, 126, 128, 128, 126, 128, 128, 126, 126 }; byte hat[] = { 127, 128, 225, 217, 99, 38, 61, 153, 152, 144, 133, 73, 122, 144, 65, 188, 87, 170, 164, 111, 122, 151, 114, 88, 174, 77, 140, 92, 122, 141, 156, 124, 121, 123, 126, 133, 132, 139, 119, 120, 127, 141, 130, 122, 129, 127, 132, 121, 139, 118, 130, 131, 129, 132, 130, 134, 126, 128, 130, 126, 122, 132, 129, 127, 131, 126, 128, 127, 126, 125, 127, 125, 128, 125, 128, 128, 127, 127, 126, 127, 128, 128, 128, 127, 127, 127, 127, 127, 128, 127, 127, 126, 127, 127, 128, 127, 128, 126, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 128, 126, 126, 128, 127, 126, 127, 126, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 126, 126, 126, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 126, 127, 127, 127, 127, 127, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 126, 126, 127, 126, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 126, 127, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127 }; byte crash[] = { 127, 128, 225, 217, 99, 38, 61, 153, 152, 144, 133, 73, 122, 144, 65, 188, 87, 170, 164, 111, 122, 151, 114, 88, 174, 77, 140, 92, 122, 141, 156, 124, 121, 123, 126, 133, 132, 139, 119, 120, 127, 141, 130, 122, 129, 127, 132, 121, 139, 118, 130, 131, 129, 132, 130, 134, 126, 128, 130, 126, 122, 132, 129, 127, 131, 126, 128, 127, 126, 125, 127, 125, 128, 125, 128, 128, 127, 127, 126, 127, 128, 128, 128, 127, 127, 127, 127, 127, 128, 127, 127, 126, 127, 127, 128, 127, 128, 126, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 128, 128, 126, 126, 128, 127, 126, 127, 126, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127, 127, 127, 126, 126, 126, 127, 127, 127, 126, 127, 127, 127, 126, 127, 127, 126, 127, 127, 127, 127, 127, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 126, 126, 127, 126, 127, 126, 126, 126, 126, 126, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 126, 127, 127, 127, 126, 127, 126, 127, 127, 127, 127, 127, 126, 126, 127, 127, 126, 127, 127, 127, 127, 126, 127, 127, 127, 127, 127, 127, 127, 127 }; void setup() { DDRD = DDRD | B11111100; //In attempt to try and use an ATtiny, I got an error here } void loop() { for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar2[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar3[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar2[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar1[j]); } for(int j = 0; j < barLength; j ++) { playBeat(bar4[j]); } } // Playback Functions void playBeat(byte beat) { if(beat == 0) { for(int i = 0; i < 256; i ++) { delayMicroseconds(analogRead(0) + 1); } } else if(beat == 1) { playKick(); } else if(beat == 2) { playSnare(); } else if(beat == 3) { playHat(); } else if(beat == 4) { playCrash(); } delay(delayTime); } void playKick() { for(int i = 0; i < 256; i ++) { PORTD = kick[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; } void playSnare() { for(int i = 0; i < 256; i ++) { PORTD = snare[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; } void playHat() { for(int i = 0; i < 256; i ++) { PORTD = hat[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; } void playCrash() { for(int i = 0; i < 256; i ++) { PORTD = crash[i]; delayMicroseconds(analogRead(0) + 1); } PORTD = 127; }

Question by blinkyblinky    |  last reply


Engine to Compressor? Answered

I am planning on making a very high volume compressor from a small engine.  I plan to adjust timing and stuff accordingly.  I just wan't to make sure an engine can handle the pressure.  I assume it can because of the explosions it can contain but I just want to be sure it can handle 125-200psi.  And also, is 2 stage really necessary or can I just push all the air in in one stage with a couple pistons.

Question by jj.inc    |  last reply


how to choose the proper power supply to ESC? Answered

Hello , it's my first time posting here and i hope i have help i have a brushless motor with ESC rated as 30 A max i tried to connect it to a 12V- 125 A power supply but the ESC was burnt i wonder why did this happen ? i was told that the ESC will take the current it needs from the power supply and there are no problem to connect them together can anyone explain what happened to me?

Question by mmokhtar2    |  last reply


How do I send a 125mb mpeg file thru yahoo email that only allows a 25mb file?

I sometimes take videos on my digital camera, but when I want to send them as an attachment on email, yahoo! limits my attachment to a 25mb file. So how do I do this? My videos are 2 -3 minutes each, but when I check how big they are, they're usually 125-180mb. I'm not very tech-minded, so explain in detail. Thanks.

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Need speaker/crossover help - modifying Leslie cabinet?

Hello, I have a Leslie 125 that contains a 20W tube amp and a 12" full-range Jensen. What I want to do is to add a horn to the cabinet in order to get more punch on the high end. I hope to do this without replacing the Jensen, but I will if I need to. What I don't know how to do is to pick a speaker and crossover that will be correct for the 20W amp and the speaker I currently have.  Looking for advice in choosing parts to buy. See image for what I want to do

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Knex gun contest(tinyhooman edition)

Hello, today I have a contest for you guys. This contest has a 125 piece limit, TRUE TRIGGERS ONLY, and has to have a mag(no examples I got no mag guns, I'm just seeing if anyone responds) Please post a link to an instructable or photo Of your entry in the comments. After you do that, I'll rate it from 0-5 stars, and the person who gets the rare 6 stars wins(6 because it's normally max 5). And, if you win, you get nothing because I really have nothing to give away. All you get are bragging rights.

Topic by tinyhooman    |  last reply


Mystery part!

My sister brought me home this part tonight from tech crew at school, she says she thinks it came from a fire alarm but were not sure. There are 2 lightbulb sockets and engraved on the metal it says "75W -125 v". Out of the back there are 6 wires, 1 red 1 black 2 white that are going into the large thing in the middle, and 1 black and 1 white coming out of the empty socket. the 2 sockets are also wired together. What is this part? is it simply a power supply with 2 light bulbs? The label says "Lithonia emergency systems on it" "input : 277 at 60hz (wht and black) output:120v 21.6VA (wht and red).

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What are the effects of Henrys in the use of inductors? Answered

I'm looking for information that might help me find a reactor for my variac setup. I noticed that almost every inductor I looked at has a Henry rating, I'm curious as to how this effects the circuit. After reading up on what a Henry is, I'm not sure I understand what it is exactly. I have also heard of people referring to inductors by their inductance, would they be referring to their Henry rating or their voltage/amperage rating? P.S. My variac is a 125/260v 11A military surplus, for all those interested.

Question by pmk222    |  last reply


User statistics report -- breakdown by traffic source is buggy

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Topic by kelseymh  


How Can I Remove This Stripped Screw?

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Question by Simon_Carter    |  last reply


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NASA's Shuttle Atlantis Rolls into Place

From the NASA homepage:"Space shuttle Atlantis' rollout to Launch Pad 39A at NASA's Kennedy Space Center in Florida has been rescheduled to begin at 4 a.m. EDT on Tuesday, March 31 [today], as preparations for the STS-125 mission move forward. Atlantis is targeted to lift off May 12 to service NASA's Hubble Space Telescope....During Atlantis' 11-day mission, the crew of seven astronauts will make the final shuttle flight to Hubble. During five spacewalks, they will install two new instruments, repair two inactive ones and replace components. The result will be six working, complementary science instruments with capabilities beyond what is now available, and an extended operational lifespan for the telescope through at least 2014."Link

Topic by drinkmorecoffee    |  last reply


Tennis Ball Cannon

Alright, so ive been into making all sorts of cannons whether they are pneumatic or hairspray, and recently I've been wanting to build a pneumatic tennisball cannon. i came across halve a dozen empty fire extinguishers, i am still deciding if i should use one as the chamber. i am using an electronic sprinkler valve and a 2 1/2" barrel i am also getting a 12 volt (dc) car air compressor (125 psi) and i am going to incorporate this somewhere in the cannon, the air compressor is really small so i could make it built in. i really want to make this cannon portable but i am concerned about the weight of it with the fire extinguisher tank, Any Ideas?

Topic by struckbyanarrow    |  last reply


Ohms on a Speaker VS Ohms on an Amp? Answered

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Question by jj.inc    |  last reply


Does anyone know to make concrete or like material head planter for outdoor plants?

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Topic by nickec  


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Question by NebulaIX  


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Topic by Kiteman    |  last reply


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Topic by gersthei    |  last reply


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Question by Highlander1856    |  last reply


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Question by dapper dad    |  last reply


can anyone help build a basic computer?

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Question by halamka    |  last reply


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Topic by mikeasaurus    |  last reply


Hot Couture: A Fusion of Fashion and Fire

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Topic by noahw    |  last reply