Instructables: question - arduino http://www.instructables.com Fri, 19 Dec 2014 02:13:11 PST BLOX v1.01 220V AC Voltage regulator, controlled with micro controller? http://www.instructables.com/answers/220V-AC-Voltage-regulator-controlled-with-micro-co/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif goehler_dk Hi I'm fairly new to Arduino (I'm actually using Netduino), and I have been puzzling with making a voltage regulator, for a 100W lightbulb. But my issue is, that I would like to control it digitally, with a micro controller - and not with the usual potentiometer. Is there some kind of digital pote...
By: goehler_dk

Continue Reading »]]>
Mon, 15 Dec 2014 10:45:32 PST
Arduino Morse Code decoder? http://www.instructables.com/answers/Arduino-Morse-Code-decoder/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Mad Fox I want to make an arduino morse code decoder, which will print the result on a 16x2 LCD. The input will be 3 button, 2 will be the "_" and "." respectively, the 3rd one will be the "space" button, when press will decode the code which was input. If input was wrong then it will display a "?" mark. An...
By: Mad Fox

Continue Reading »]]>
Fri, 12 Dec 2014 23:57:18 PST
read external 6V power source via 5V driven arduino? http://www.instructables.com/answers/read-external-6V-power-source-via-5V-driven-arduin/ http://cdn.instructables.com/F79/GFJR/I3H6Y2CQ/F79GFJRI3H6Y2CQ.SQUARE2.jpg http://cdn.instructables.com/F79/GFJR/I3H6Y2CQ/F79GFJRI3H6Y2CQ.SQUARE.jpg http://cdn.instructables.com/F79/GFJR/I3H6Y2CQ/F79GFJRI3H6Y2CQ.SMALL.jpg marc_is_curious I need to check external 6V voltage for a servo circuit on my 5V USB driven arduino uno - in order to not waste power & "over-power" the arduino's analog pin reading the external 6Vt: - should i use a voltage divider with high resistor values? i look forward to your advice …
By: marc_is_curious

Continue Reading »]]>
Wed, 10 Dec 2014 07:17:59 PST
3.3V voltage regulator for diy "bare-bone" arduino? http://www.instructables.com/answers/33V-voltage-regulator-for-diy-bare-bone-arduino/ http://cdn.instructables.com/FV0/O8DJ/I3GX8QQ4/FV0O8DJI3GX8QQ4.SQUARE2.jpg http://cdn.instructables.com/FV0/O8DJ/I3GX8QQ4/FV0O8DJI3GX8QQ4.SQUARE.jpg http://cdn.instructables.com/FV0/O8DJ/I3GX8QQ4/FV0O8DJI3GX8QQ4.SMALL.jpg marc_is_curious I would like to use whether six AA or one 9Volt external battery for a diy "bare-bone" arduino* (*just the 328p atmega, 8MHz oscilator, capacitors, resitor, LED) & tested LM317, LD1086, LM1117 voltage regulators (it's a "budget" project – hence didn't try any step-up/step-down switching regulators t...
By: marc_is_curious

Continue Reading »]]>
Wed, 10 Dec 2014 07:14:46 PST
how to control servo motor(analog or digital servo) with ps2 remote and Arduino Uno r3? http://www.instructables.com/answers/how-to-control-servo-motoranalog-or-digital-servo-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif vrushank26 hello, I just want to control my servo Pan tilt with my ps2 remote and arduino uno R3. It means when i press the Triangle(Green) button it will move clock wise, and when i press X(Blue) button it will move counter clock wise. and this condition will true when button will press. unless it stop at cur...
By: vrushank26

Continue Reading »]]>
Mon, 8 Dec 2014 23:56:31 PST
Arduino NFC trigger? http://www.instructables.com/answers/Arduino-NFC-trigger/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Jonathanrjpereira Hi, I'm making an Arduino powered NFC trigger? I want to control it from my phone. As soon as I switch my phones NFC ON, the Arduino should get triggered. I'm aware that the circuit will contain an Arduino board, a nfc shield , relay. But I need to do this on a budget. So i need to know which is the...
By: Jonathanrjpereira

Continue Reading »]]>
Mon, 8 Dec 2014 01:07:38 PST
how to build a smart power meter ? http://www.instructables.com/answers/how-to-build-a-smart-power-meter-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif MohammedT1 Hi , can i build a device that can measure the power usage in my house by using arduino or Raspberry PI ?
By: MohammedT1

Continue Reading »]]>
Mon, 1 Dec 2014 14:36:57 PST
Where can I find large seven segment displays? http://www.instructables.com/answers/Where-can-I-find-large-seven-segment-displays/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif furrysalamander My neighbor wants me to make a scoreboard for his ping pong table, but I'm having difficulty finding something to use as the display.  Seeed Studio has some, http://www.seeedstudio.com/depot/7-Segment-Display-8-Inches-Red-p-1194.html, but they come in individual segments.  Sparkfun has some as well,...
By: furrysalamander

Continue Reading »]]>
Sun, 30 Nov 2014 19:17:35 PST
How can "my project" get featured? http://www.instructables.com/answers/How-can-my-project-get-featured/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif iam_maker_leo I'm beginner of Instructable... I uploaded a project 2 weeks ago... This does not get "featured". I know that it is not awesome build... In this time, I have a question..... HOW CAN MY PROJECT GET FEATURED? I am preparing one project more.... I want to get featured... Please Let me know
By: iam_maker_leo

Continue Reading »]]>
Thu, 27 Nov 2014 20:02:25 PST
arduino, servo + external power: ground to arduino, double power's runtime? http://www.instructables.com/answers/arduino-servo-external-power-ground-to-arduino-dou/ http://cdn.instructables.com/FFQ/URPQ/I2XTR7ZP/FFQURPQI2XTR7ZP.SQUARE2.jpg http://cdn.instructables.com/FFQ/URPQ/I2XTR7ZP/FFQURPQI2XTR7ZP.SQUARE.jpg http://cdn.instructables.com/FFQ/URPQ/I2XTR7ZP/FFQURPQI2XTR7ZP.SMALL.jpg marc_is_curious hope you may have a spare second to send an input & looking forward to your reply! ----------------------------------------------------------------- ----------------------------------------------------------------- arduino, servo + external power, potentiometer, switches ground to arduino once i c...
By: marc_is_curious

Continue Reading »]]>
Tue, 25 Nov 2014 19:50:39 PST
What are some compatible displays for Arduino Uno? http://www.instructables.com/answers/What-are-some-compatible-displays-for-Arduino-Uno/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif SuperScourge I'm gonna create a little half scale Arcade machine (out of cardboard if I can) just for fun so I can know how to code the screen but I don't know what displays can work for the Arduino Uno and I've found one at Sparkfun which is the touch one for it but that's too Expensive! So what are some displ...
By: SuperScourge

Continue Reading »]]>
Sun, 23 Nov 2014 22:53:00 PST
How do I play a song from my computer using arduino? http://www.instructables.com/answers/How-do-I-play-a-song-from-my-computer-using-arduin/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif jvan27 Hello! I am a maker beginner and I need some help!  :( I am trying to make a device that detects when it is moving and then plays a song from the computer. Right now I have an accelerometer from adafruit which is attached to the adafruit flora. the information is being displayed through the serial ...
By: jvan27

Continue Reading »]]>
Sun, 23 Nov 2014 21:28:22 PST
My coding in Arduino has an error? http://www.instructables.com/answers/My-coding-in-Arduino-has-an-error/ http://cdn.instructables.com/FGV/DCB3/I2CV9AYC/FGVDCB3I2CV9AYC.SQUARE2.jpg http://cdn.instructables.com/FGV/DCB3/I2CV9AYC/FGVDCB3I2CV9AYC.SQUARE.jpg http://cdn.instructables.com/FGV/DCB3/I2CV9AYC/FGVDCB3I2CV9AYC.SMALL.jpg adriana.massie.9 I got a robot kit form Radio shack and I had the choice to build the line following robot or the walking robot. So i built the walking one. I download the program(Arduino) and everything. So when i click the verify button and error thing comes up. It tells me that"MakeItRobotics does not have a name...
By: adriana.massie.9

Continue Reading »]]>
Tue, 11 Nov 2014 13:01:24 PST
RFID or Smart Card Cashless Payment System? http://www.instructables.com/answers/RFID-or-Smart-Card-Cashless-Payment-System/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif 7_7 Hello! I was wondering if it was possible to make a cashless (apart from adding funds) payments system. I was thinking it could be done with an Arduino and RFID reader/writer OR smart card reader/writer. The balance would be stored on the card (AFAIK data can be stored on the cards) and when the pe...
By: 7_7

Continue Reading »]]>
Mon, 10 Nov 2014 11:22:55 PST
ESP8266 wifi module data logger? http://www.instructables.com/answers/ESP8266-wifi-module-data-logger/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Akin Yildiz ​hello everyone, can anybody do a simpler project with this? I just want to collect data using arduino Analog0 input with an LDR photoresistor. collect the data and simply post it on Thingspeak ?!?! . all the examples I find are very complicated and include libraries. I need my project to be much si...
By: Akin Yildiz

Continue Reading »]]>
Mon, 10 Nov 2014 10:14:41 PST
Help with Capacity and Inductive Proximity Code for Arduino? http://www.instructables.com/answers/Help-with-Capacity-and-Inductive-Proximity-Code-fo/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif charlie.spells I am a beginner. I'm trying to figure out what wrong with this code. The project is suppose to turn a servo motor left and right based on which sensors are active. Capacity Sensor (cpsensor) and Inductive Proximity Sensor (ipsensor). Here is the code:                                               ...
By: charlie.spells

Continue Reading »]]>
Fri, 7 Nov 2014 02:01:50 PST
Counting Heartbeat with Arduino: Help with Code? http://www.instructables.com/answers/Counting-Heartbeat-with-Arduino-Help-with-Code/ http://cdn.instructables.com/F33/9IWS/I24M039F/F339IWSI24M039F.SQUARE2.jpg http://cdn.instructables.com/F33/9IWS/I24M039F/F339IWSI24M039F.SQUARE.jpg http://cdn.instructables.com/F33/9IWS/I24M039F/F339IWSI24M039F.SMALL.jpg DangerousTim I got a premade heartbeat sensor which uses an IR led and an IR receiver to sense heartbeat. It gives out an analog signal, which i have connected to my Arduino's A0 pin, and uploaded the analogRead sketch to it(sends values to serial port too). Then to visualize the heartbeat i used a processing ...
By: DangerousTim

Continue Reading »]]>
Wed, 5 Nov 2014 23:03:28 PST
PIR DC Motor? http://www.instructables.com/answers/PIR-DC-Motor/ http://cdn.instructables.com/FYK/U2PT/I21RA4C6/FYKU2PTI21RA4C6.SQUARE2.jpg http://cdn.instructables.com/FYK/U2PT/I21RA4C6/FYKU2PTI21RA4C6.SQUARE.jpg http://cdn.instructables.com/FYK/U2PT/I21RA4C6/FYKU2PTI21RA4C6.SMALL.jpg Josh_Lucas Hi all, I am trying to set up a dc motor controlled by a PIR sensor using an arduino.  When the PIR sensor is triggered, I would like the motor to turn on for half a second and then off.  However, no matter what "delay" I write into the sketch, the motor always stays on for around four seconds.  Co...
By: Josh_Lucas

Continue Reading »]]>
Tue, 4 Nov 2014 04:29:09 PST
is it possible to connect an xBee to 4 servos and a tank chassis and control it on a computer? http://www.instructables.com/answers/is-it-possible-to-connect-an-xBee-to-4-servos-and-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ibenkos Im building an RC tank whit an 4 dof robot arm on it, can I control the whole thing on my computer using an xbee on my tank and one on my computer? and if so what do I have to download on my computer to control it?
By: ibenkos

Continue Reading »]]>
Wed, 29 Oct 2014 16:57:26 PDT
Why does this circuit need these resistors connected to the transistor? http://www.instructables.com/answers/Why-does-this-circuit-need-these-resistors-connect/ http://cdn.instructables.com/FH7/6EUP/I1NUX5PF/FH76EUPI1NUX5PF.SQUARE2.jpg http://cdn.instructables.com/FH7/6EUP/I1NUX5PF/FH76EUPI1NUX5PF.SQUARE.jpg http://cdn.instructables.com/FH7/6EUP/I1NUX5PF/FH76EUPI1NUX5PF.SMALL.jpg seonghoon52 I was following the instructions from the book, "Arduino for Dummies", and worked on this tutorial with a dc motor and it says that I need a 2.2k ohm resistor connected from a digital output pin to the transistor's middle pin. Why does it require a resistor there? Is the transistor not able to handl...
By: seonghoon52

Continue Reading »]]>
Sun, 26 Oct 2014 23:59:35 PDT
can one achieve 24vdc scooter motor control using the scooters controller to arduino? http://www.instructables.com/answers/can-one-achieve-24vdc-scooter-motor-control-using-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif schel as above I want to control a 24 vdc scooter motor with an arduino to utiliza all the cool stuff can be done with a MC. I have all the parts except the throttle...hence..the predicament to birth the idea. The control wires coming from the scooters motor control are RED/ BLACK/ GREEN/  YELLOW...easy ...
By: schel

Continue Reading »]]>
Sun, 26 Oct 2014 15:20:01 PDT
How to show 3 different temperatures using 3 LEDs connected to a ATtiny85? http://www.instructables.com/answers/How-to-show-3-different-temperatures-using-3-LEDs-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif minimadmalc Hi people I am trying to build a temperature sensor using 3 LEDs. The aim is to have them come on at specific temperatures. This is for my motorcycle ride to work this coming winter. I want to know when the temp goes below 8c down to 5c from 5c down to 0c then below. I have managed to do this via a ...
By: minimadmalc

Continue Reading »]]>
Wed, 15 Oct 2014 12:35:12 PDT
I want to make 2 wireless bluetooth microphone&speaker with recording, which are connected each other.. I'm in trouble http://www.instructables.com/answers/I-want-to-make-2-wireless-bluetooth-microphonespea/ http://cdn.instructables.com/FPZ/2MOK/I0Q1Q8GW/FPZ2MOKI0Q1Q8GW.SQUARE2.jpg http://cdn.instructables.com/FPZ/2MOK/I0Q1Q8GW/FPZ2MOKI0Q1Q8GW.SQUARE.jpg http://cdn.instructables.com/FPZ/2MOK/I0Q1Q8GW/FPZ2MOKI0Q1Q8GW.SMALL.jpg seyoung.oh1 I'm design student in Korea, I want to make one device for my graduation project. but I have not many experience from this works, just few project with processing, and arduino. my idea is this, but I don't know what should I start from what. can you please please give me some advice  or some referen...
By: seyoung.oh1

Continue Reading »]]>
Wed, 1 Oct 2014 04:43:43 PDT
Can I use 741 op amps instead of 1 LM324 in a heart rate sensor? http://www.instructables.com/answers/Can-I-use-741-op-amps-instead-of-1-LM324-in-a-hear/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif DangerousTim http://makezine.com/video/visualize-your-heartbeat-with-this-homemade-pulse-sensor/
By: DangerousTim

Continue Reading »]]>
Mon, 29 Sep 2014 19:45:05 PDT
Can't get a TLC272IP OP-AMP to work. what am I doing wrong? http://www.instructables.com/answers/Cant-get-a-TLC272IP-OP-AMP-to-work-what-am-I-doing/ http://cdn.instructables.com/FXH/BTE2/I0C8WV14/FXHBTE2I0C8WV14.SQUARE2.jpg http://cdn.instructables.com/FXH/BTE2/I0C8WV14/FXHBTE2I0C8WV14.SQUARE.jpg http://cdn.instructables.com/FXH/BTE2/I0C8WV14/FXHBTE2I0C8WV14.SMALL.jpg jm-l Hello I received this week a few TLC272IP op-amp and I wanted to test them. I created a circuit on a breadboard which looks like the attached image From what I read on the net, this is a  typical non inverting amplifier schema where gain should be (1 + R2/R1) I connected PIN 3 of the TLC272 to p...
By: jm-l

Continue Reading »]]>
Sun, 21 Sep 2014 10:21:19 PDT
Hi, I was trying to control 10 Leds with the arduino Through the serial monitor, does anybody know how ? http://www.instructables.com/answers/Hi-I-was-trying-to-control-10-Leds-with-the-arduin/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Genius 470
By: Genius 470

Continue Reading »]]>
Sat, 20 Sep 2014 16:37:17 PDT
Connect USB HP printer to Arduino UNO http://www.instructables.com/answers/Connect-USB-HP-printer-to-Arduino-UNO/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif gastonbr100 Hi, i want to connect a USB printer to an arduino to control it, i know that i can connect a Printer by using the Parallel cable, but my printer only works with usb. Any ideas????
By: gastonbr100

Continue Reading »]]>
Thu, 18 Sep 2014 12:31:30 PDT
laser voltage? http://www.instructables.com/answers/laser-voltage/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ludvig.risan i have a laser diode that needs between 3.7v  and 4.2v to run, http://www.laserlands.net/gd-ms-200mw-green.html and i plan to run it of an arduino (5v). to reduse the voltage i have calculated that i need a resistance of aproximately 1.333ohm. is this necessary/is there a bether way to do this? tha...
By: ludvig.risan

Continue Reading »]]>
Mon, 15 Sep 2014 11:32:20 PDT
Problem with LCD backlight http://www.instructables.com/answers/Problem-with-LCD-backlight/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ade angelis Hello everybody,  I'm here to ask a question I'm not able to solve on my own. I'm not good at programming, so it may be a silly question, but I can't find a solution. I'm building an Arduino based humidity and temperature monitoring system, with three DHT-11 sensors and a display to show readings fr...
By: ade angelis

Continue Reading »]]>
Sat, 13 Sep 2014 09:49:58 PDT
can i program a toy car to be an autonomous car? http://www.instructables.com/answers/can-i-program-a-toy-car-to-be-an-autonomous-car/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif eng.nejm my graduation project is an autonomous toy car . the user specify a destination by his mobile phone and the car must go to the specified destination by it's self. of course the software will be too large , so where the data like maps are going to be saved? what kind of hardware should i use? is it p...
By: eng.nejm

Continue Reading »]]>
Tue, 9 Sep 2014 15:21:33 PDT
that piece is this? http://www.instructables.com/answers/that-piece-is-this/ http://cdn.instructables.com/FT5/UE5V/HZV3OK1E/FT5UE5VHZV3OK1E.SQUARE2.jpg http://cdn.instructables.com/FT5/UE5V/HZV3OK1E/FT5UE5VHZV3OK1E.SQUARE.jpg http://cdn.instructables.com/FT5/UE5V/HZV3OK1E/FT5UE5VHZV3OK1E.SMALL.jpg ualbuquerque Eu quero  construir um  Arduino  e preciso de um  regulador de tensão  entre as peças  que eu tenho esse  é o mais  semelhante ao  que  encontramos  na internet
By: ualbuquerque

Continue Reading »]]>
Tue, 9 Sep 2014 06:11:51 PDT
Need Help writing a Star Trek themed Arduino code http://www.instructables.com/answers/Need-Help-writing-a-Star-Trek-themed-Arduino-code/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif jamesstills Hey Folks. I really need help  writing an arduino code to control a star trek model i'm working on. I don't really understand programming but I'd really like if anyone can help out. The code is supposed to use 2 momentary switches. When the main switch is pushed it will activate some leds in sequenc...
By: jamesstills

Continue Reading »]]>
Sat, 6 Sep 2014 12:53:53 PDT
Trying to use keypad with arduino mega. please help http://www.instructables.com/answers/Trying-to-use-keypad-with-arduino-mega-please-help/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Kirkthepyro I have a 4X4 keypad (the same one they use here: http://www.learningaboutelectronics.com/Articles/Arduino-keypad-circuit.php) wired to my arduino mega on ports 14-21. I have a piezo on pwm8. I need a program that plays a diffrent note when each key is pressed, using keypad library here:http://playgr...
By: Kirkthepyro

Continue Reading »]]>
Fri, 5 Sep 2014 17:04:27 PDT
How to create a loop under a switch (arduino)? http://www.instructables.com/answers/How-to-create-a-loop-under-a-switch-arduino/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ThisIsSteve I need help in creating a loop under a switch command in arduino IDE, I'm new to programming.  void loop() {   if (Serial.available() 0) {      incomingByte = Serial.read();   } switch (incomingByte){    case '1':    digitalWrite(led1, LOW);    digitalWrite(led2, HIGH); delay(300); ...
By: ThisIsSteve

Continue Reading »]]>
Tue, 2 Sep 2014 05:05:08 PDT
how do i start a project using a microphone to cause a servo to "sweep" depending on the sound level? http://www.instructables.com/answers/how-do-i-start-a-project-using-a-microphone-to-cau/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif katman101 i really want to make a servo rotate like when using the sweep code but with a microphone instead of a potentiometer. the servo would move depending on the decibel level and return to it's default position once the noise stops. i can code myself but i don't know where to start and i can't understand...
By: katman101

Continue Reading »]]>
Fri, 29 Aug 2014 20:18:02 PDT
Random flashing LEDs when using shift registers and turning on the system: how to fix? http://www.instructables.com/answers/Random-flashing-LEDs-when-using-shift-registers-an/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif DoctorWoo I have a setup using 5 shift registers (74HC595s) hooked up to an arduino micro. Everything works great! So much so, that I didn't pay too much attention to the start up issue. When I start up the system (either by hooking up a battery or plugging it into a USB socket) the LED's hooked up to the 59...
By: DoctorWoo

Continue Reading »]]>
Wed, 27 Aug 2014 17:15:33 PDT
Wiring a wav playing setup and shift register to the same arduino? http://www.instructables.com/answers/Wiring-a-wav-playing-setup-and-shift-register-to-t/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif DoctorWoo I just ran into an issue with my current setup for a project I've been working on. I would like to hookup a wav playing setup (either the Adafruit Wave Shield or a wav playing setup like this) Issue I'm having is I can't change the pins around for the shift register setup (which I have setup and wor...
By: DoctorWoo

Continue Reading »]]>
Sat, 23 Aug 2014 22:22:40 PDT
Question about calling arduino functions? http://www.instructables.com/answers/Question-about-calling-arduino-functions/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif JakeWhelchel So i'm messing with some 7-segment displays and i have a function for each number to display, right now I'm ending up using a ton of if statements to control which number's function is called based on a value, however I wondered if there was a way to output a number or value that would select the fu...
By: JakeWhelchel

Continue Reading »]]>
Sat, 23 Aug 2014 12:58:03 PDT
My instructable has 0 View for about 1 day ! ? http://www.instructables.com/answers/My-instructable-has-0-View-for-about-1-day-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ram mere Hi, I know this is a common error but what is the solution ?? 
By: ram mere

Continue Reading »]]>
Fri, 22 Aug 2014 20:14:25 PDT
Are the JY MCU and the HC 05 bluetooth module the same? http://www.instructables.com/answers/Are-the-JY-MCU-and-the-HC-05-bluetooth-module-the-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif DangerousTim if not, how are they different? do they works with all android phones? what librabries or software do i use for controlling these with arduino???
By: DangerousTim

Continue Reading »]]>
Thu, 21 Aug 2014 06:05:40 PDT
Faint LED's while using an Arduino Micro and shift register? http://www.instructables.com/answers/Faint-LEDs-while-using-an-Arduino-Micro-and-shift-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif DoctorWoo This is more of a "How things work" question, but a question non the less. I have five 595 shift registers hooked up to an arduino micro. Everything is wired correctly, and it all works beautifully on my test bed, all the codes work fine. Only issue is that my LED's are only about half as bright as...
By: DoctorWoo

Continue Reading »]]>
Wed, 20 Aug 2014 13:34:13 PDT
How to count the number of the button is pressed and use another button to erase the count. http://www.instructables.com/answers/How-to-count-the-number-of-the-button-is-pressed-a/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif izzaty.anuar I want to know about how to count the number of the button pushed  and how to display it on lcd.At the same time the count can be erase to 0 to start another counting. Is there any sketch or schematic that you can suggest to me?
By: izzaty.anuar

Continue Reading »]]>
Thu, 14 Aug 2014 18:15:40 PDT
Integrating a sensor to arduino? http://www.instructables.com/answers/Integrating-a-sensor-to-arduino/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif naveenkumarmn7 I want to know to integrate a sensor to arduino. I mean how to start and from where to start. I dont want to use existing libraries, I want to create my own. I know the working of sensors and and some other basic stuff.  I want to read a sensor data (for ex: ADXL345), I want to look into the datash...
By: naveenkumarmn7

Continue Reading »]]>
Tue, 12 Aug 2014 00:47:42 PDT
Is there a DIY Arduino or Raspberry Pi Coordinate Measuring Machine published in "Instructables"? http://www.instructables.com/answers/Is-there-a-DIY-Arduino-or-Raspberry-Pi-Coordinate-/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif chestef I wish to build a coordinate machine using x-y-z movements controlled by a microprocessor that can measure a scale model by touch of a probe or by reflection of a microwave.  The base machine would handle an envelope of 8" x 8" x 8" and use one or a combination of the best of the CNC laser cutters, ...
By: chestef

Continue Reading »]]>
Sat, 9 Aug 2014 15:44:57 PDT
How can i recheck my connections?What are the general problems regarding Lcd displays? http://www.instructables.com/answers/How-can-i-recheck-my-connectionsWhat-are-the-gener/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif achyuth93 I just need to know regarding the buzzer module ...I have been using buzzer instead of  a buzzer module.Is it fine? ..Although it works fine.And please let me know the general troubleshoots related to LCD displays .I think my circuit's working great except for the lcd part. I am done uploading the c...
By: achyuth93

Continue Reading »]]>
Fri, 8 Aug 2014 18:44:24 PDT
Arduino Yun Garage Door Opener? http://www.instructables.com/answers/Arduino-Yun-Garage-Door-Opener/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif chrisleva I have an Arduino Yun with a Seeed Relay Shield and trying to create a garage door opener.  I have tried just about every sketch available but no luck.  It seems the sketches are for Arduino Uno boards with Ethernet Shields.  I tried that but was unable to establish network connectivity with a W5200...
By: chrisleva

Continue Reading »]]>
Thu, 31 Jul 2014 09:52:17 PDT
Whats wrong with the sketch?? http://www.instructables.com/answers/Whats-wrong-with-the-sketch/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Ankan Nayak This arduino robo, there is no servo, this runs only with 2 geared motors, i made the sketch according to the needs bt it doent seem to making those turns even after sensing the obstacle. The ping sensor is functional and connected properly and thel293d ic is also functional..Pls tell me whats wrong...
By: Ankan Nayak

Continue Reading »]]>
Mon, 28 Jul 2014 22:37:12 PDT
ITS URGENT! Arduino not working with external power supply? http://www.instructables.com/answers/ITS-URGENT-Arduino-not-working-with-external-power/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif Ankan Nayak I have made arduino uno u3 robot, i have used 2 geared motors via a l293d using one 9v battery and tried power the arduino with a 9v battery, then with 9v adapter but it did'nt work, I also tried powering the board via the Vin pin, also through the usb cable using the 9v batterg and adapter, but it ...
By: Ankan Nayak

Continue Reading »]]>
Sun, 27 Jul 2014 06:13:46 PDT
Arduino code help? http://www.instructables.com/answers/Arduino-code-help-5/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif cmasuo I'm really new to the arduino and I'm struggling to get this code working. I'm trying to have a servo continuously go back and forth until I change its state, which result on the servo to stop at its current position. However, it gets stuck on that for loop and i can't change its state. I assume thi...
By: cmasuo

Continue Reading »]]>
Sat, 26 Jul 2014 21:10:26 PDT
Building blocks associated with Arduino 433 Mhz transmitter & receiver http://www.instructables.com/answers/Building-blocks-associated-with-Arduino-433-Mhz-tr/ http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif ItsDavid001 Newbie here.  I want to make a temperature monitor that will transmit an alert signal to a receiver.  If I use the little 433Mhz  Arduino RF transmitter / receiver modules, what would I need with them?  I know these can be attached to the Arduino programing boards and are made functional by a comp...
By: ItsDavid001

Continue Reading »]]>
Sat, 26 Jul 2014 10:12:26 PDT