Instructables: question - arduino http://www.instructables.com Thu, 14 Dec 2017 11:42:15 PST BLOX v1.01 What is wrong with my memory game code |Arduino? http://www.instructables.com/answers/What-is-wrong-with-my-memory-game-code-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 XanderF5 Hello! I am having problem with my code, it doesn't start at all.. //Joystick const int X_pin = A4; const int Y_pin = A5; int X_Value = 0;//Waarde X-Axis Joystick int Y_Value = 0;//Waarde Y-Axis Joystick //leds const int led_Rood = 13; const int led_Groen = 12; const int led_Blauw = 11; const int...
By: XanderF5

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Tue, 12 Dec 2017 05:44:30 PST
How to use nokia 1208 display with arduino? http://www.instructables.com/answers/How-to-use-nokia-1208-display-with-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 MohammedA611
By: MohammedA611

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Sun, 10 Dec 2017 00:07:04 PST
Ouput from NodeMCU pin as input to Arduino Nano http://www.instructables.com/answers/Ouput-from-NodeMCU-pin-as-input-to-Arduino-Nano/ https://cdn.instructables.com/FET/5934/JAYJ5X45/FET5934JAYJ5X45.SQUARE2.jpg https://cdn.instructables.com/FET/5934/JAYJ5X45/FET5934JAYJ5X45.SQUARE.jpg https://cdn.instructables.com/FET/5934/JAYJ5X45/FET5934JAYJ5X45.SMALL.jpg RussellM37 I have a NodeMCU ESP-12E with D7 (output) connected in series with 220R resister to pin 12 (input) on Arduino Nano. Looks something like the image (fritzing doesn't seem to have my exact device) Is this a safe circuit? If not - what would make it safe? It seems to work but I don't want to fry any...
By: RussellM37

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Sun, 10 Dec 2017 00:03:01 PST
does my circuit need any resistors? Is the capacitor needed ? http://www.instructables.com/answers/does-my-circuit-need-any-resistors-Is-the-capacito/ 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 drystreams
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Thu, 7 Dec 2017 10:35:24 PST
How to stop a servo using conditional if? http://www.instructables.com/answers/How-to-stop-a-servo-using-conditional-if/ 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 iSmartov I'm using an Arduino Uno, Ultrasonic sensor (HC-SR04) a Servo motor (SG90 Tower Pro). I would like to rotate the servo continuously from 0 to 180 and back to 0. I would like to stop the servo whenever the ultrasonic sensor detects an object  at a distance of 40 cm or less. I know how to rotate th...
By: iSmartov

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Wed, 6 Dec 2017 09:20:56 PST
a led and a pot that controlls an 8 leds whrein the last state of the pot will be the starting point of the push buton? http://www.instructables.com/answers/a-led-and-a-pot-that-controlls-an-8-leds-whrein-th/ 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 AmenolaS
By: AmenolaS

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Mon, 4 Dec 2017 22:00:21 PST
arduino code 'else without previous if' and there is a previous if statement http://www.instructables.com/answers/arduino-code-else-without-previous-if-and-there-is/ 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 Tuddel68 Here is my code for dfplayer mini #include "Arduino.h" #include "SoftwareSerial.h" #include "DFRobotDFPlayerMini.h" long randomNumber; int bell = 6; int val = 0; SoftwareSerial mySoftwareSerial(10, 11); // RX, TX DFRobotDFPlayerMini myDFPlayer; void printDetail(uint8_t type, int value); void setu...
By: Tuddel68

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Sun, 3 Dec 2017 17:02:42 PST
can you help me on making a pot and a push button to control multiple leds? http://www.instructables.com/answers/can-you-help-me-on-making-a-pot-and-a-push-button-/ 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 AmenolaS
By: AmenolaS

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Sat, 2 Dec 2017 23:29:44 PST
by using ardino R3 ,BT module and mpu6050 can we make stable brushed quadcopter? http://www.instructables.com/answers/by-using-ardino-R3-BT-module-and-mpu6050-can-we-ma/ 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 AbhiH4 sir i want all the instruction of ardino brushed quadcopter .i want make this project in lower budget and i .can i use ardino micro insted of nano? can i use 180 motors?and laptop battery?
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Fri, 1 Dec 2017 06:55:37 PST
Is arduino nano can power many sensors and IC? http://www.instructables.com/answers/Is-arduino-nano-can-power-many-sensors-and-IC/ 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 Rajkumar2506 Is 5V in arduino nano is enough to power up two IC555, DS1307 RTC, LM35, DHT11, 74HC595N and 74LS14 IC's. 20 x 4 LCD at the same time without affecting LCD brightness and contrast?
By: Rajkumar2506

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Thu, 30 Nov 2017 13:18:55 PST
Arduino hit counter - need ideas ? http://www.instructables.com/answers/Arduino-hit-counter-need-ideas-/ 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 WardaA3 Good evening everyone  I need ideas about how to count number of hit using Arduino  for example an Arduino safely installed on kickboxing bag, and I need to count every time the kick-boxer hit the bag :)  please need ideas, its for senior project :)
By: WardaA3

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Thu, 30 Nov 2017 04:42:15 PST
How can I type letters in serial-mon and save the input in a global array ?Can anyone guide me in the right direction? http://www.instructables.com/answers/How-can-I-type-letters-in-serial-mon-and-save-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 moshoo For example, I am trying to create a program where there are multiple questions on serial-mon and the user can input his/her answer in. "How to spell 1?"  one (this is the answer) "How to spell 30?" thirty (this is the answer) I am trying to make my serial- mon page look like that. 
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Wed, 29 Nov 2017 14:26:00 PST
Arduino Script Issue? http://www.instructables.com/answers/Arduino-Script-Issue/ 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 Mpc1055 Hey world, I am making device that will automatically water my xmas tree: I am using the basic "button" script from the Arduino IDE examples. the only change I have made so far is instead of using an actual push button I am sticking 2 bare copper wires(the ground has a 10k resistor) into a jar.  Whe...
By: Mpc1055

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Sun, 26 Nov 2017 13:05:36 PST
How to reset arduino after pressing the pushbutton 16 times? http://www.instructables.com/answers/How-to-reset-arduino-after-pressing-the-pushbutton/ 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 DanielB804 Good afternoon, I'm trying to reset my Arduino after pressing the pushbutton 16 times. What I'm currently experiencing is that it is not resetting. I'm trying to achieve this using the StateChangeDetection example. Could anyone give me tips on how to achieve this? I'm working on this using an Multi...
By: DanielB804

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Thu, 23 Nov 2017 04:31:58 PST
Can you tell me the code for arduino robot that has HC-SR04 Ultrasonic sensor , L293D , IR receiver module and remote? http://www.instructables.com/answers/Can-you-tell-me-the-code-for-arduino-robot-that-ha/ 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 KodakH1 It is a arduino obstacle avoiding robot , that has arduino uno R3 , L293D motor driver , HC-SR04 ultrasonic sensor , IR remote and receiver module on 2wD chassis.
By: KodakH1

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Tue, 21 Nov 2017 22:39:08 PST
What is the program code for arduino obstacle avoiding robot it has IR remote and receiver module with HC-SR04 sensor? http://www.instructables.com/answers/What-is-the-program-code-for-arduino-obstacle-avoi/ 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 KodakH1 It has HC-SR04 ultrasonic sensor , arduino uno R3, L293D motor driver , and Infrared remote and Infrared receiver module.
By: KodakH1

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Mon, 20 Nov 2017 20:01:43 PST
Hello guys, I'm doing a alarm system. But my push button doesn't stop the piezo and led when I pressed it. http://www.instructables.com/answers/Hello-guys-Im-doing-a-alarm-system-But-my-push-but/ 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 DejunL This is my code. const int buzzerPin = 5; const int ledPin = 6; const int motionPin = 7; const int buttonPin = 12; boolean buzzer_mode = false; int ledState = LOW; unsigned long previousMillis = 0; const long interval = 100;  // Interval at which LED blinks int button_state=0; void setup() {  ...
By: DejunL

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Sat, 18 Nov 2017 09:17:07 PST
how to code on NEO PIXEL 60 LED CLOCK http://www.instructables.com/answers/how-to-code-on-NEO-PIXEL-60-LED-CLOCK/ 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 binods7 Please help me to make neo pixel clock. compenent  I am useing    1)    Arduino Nano,  DS 3231, LDR and ws 2812b  ring 60 led Please help me in coading
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Sat, 18 Nov 2017 07:55:20 PST
How do i write an Arduino code for transfer of vibration data to a pc via bluetooth? http://www.instructables.com/answers/How-do-i-write-an-Arduino-code-for-transfer-of-vib/ 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 Shaggy74 Hi, I am currently attempting to build a circuit for a college module that would use vibration data from a dc motor then send it to a microprocessor before transferring the data via Bluetooth to a pc. I have trawled through numerous sites for the correct components to use but. My question is this....
By: Shaggy74

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Wed, 15 Nov 2017 12:44:35 PST
How to control DIY linear actuator with end switches and sensor input? http://www.instructables.com/answers/How-to-control-DIY-linear-actuator-with-end-switch/ 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 catalin1704 I want to build a DIY 12v DC linear actuator, using Arduino uno. The actuator is DIY so it does not have any position tracking. I want to use 2 relays to control the direction of the actuator, two end switches, and one sensor input (preferably a photo resistor) The sensor, and end switches are con...
By: catalin1704

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Thu, 9 Nov 2017 01:39:37 PST
How do i make LEDs flash to tempo? http://www.instructables.com/answers/How-do-i-make-LEDs-flash-to-tempo/ 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 Delta1Dan Ok, when I was djing at a party i thought of this cool idea of the LEDs flashing to tempo, and when the music changed (for example, 120bpm to 140bpm) the LEDs would change tempo with the music. And if it was even possible, link the arduino with Virtual DJ  so when the music changes and so does the t...
By: Delta1Dan

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Fri, 3 Nov 2017 11:13:49 PDT
need help writing Arduino sketch for Nano to Adafruit FX mini soundboard communications? http://www.instructables.com/answers/need-help-writing-Arduino-sketch-for-Nano-to-Adafr/ 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 supramp Hello everyone.  I am new here, and fairly new to arduino. Im an electrician/ communications tech by trade, but have only been working with code as a hobby for a few weeks (have wanted to learn this for a long time).  I am working on a project that would require an Motion sensor input to play an a...
By: supramp

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Thu, 26 Oct 2017 04:49:18 PDT
TIMELORD.h gets too old? Any other libraries? http://www.instructables.com/answers/TIMELORDh-gets-too-old-Any-other-libraries/ 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 marc.deloor.5 Hello, I'm using TIMELORD pretty often, especially for the SunUP and Down function,and for the Moon stages. I recently read that there was a replacement for it, but I don't seem to find the SunUp, SunDown calculations... Anyone here can help me with other libraries? Thank you so much!
By: marc.deloor.5

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Mon, 23 Oct 2017 13:39:44 PDT
Arduino BOARDs.TXT messed up http://www.instructables.com/answers/Arduino-BOARDsTXT-messed-up/ 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 marc.deloor.5 I messed up a bit in the boards.txt... I suppose. I added a few extra's for ATTiny, ATMega... And now I get some errors, but I can still program. I think it came by installing newer updates over new updates from the IDE. A little time ago, you had to be sure to copy your "not standard" libraries to ...
By: marc.deloor.5

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Mon, 23 Oct 2017 13:34:58 PDT
Arduino stop the loop? http://www.instructables.com/answers/Arduino-stop-the-loop/ 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 cris92 i have a problem with my code, i basically move a motor with the help of 3 relays, when a sensor does not detect the presence of an object part of a call, everything works perfectly, if it was after having called the function CHIAMATA() the arduino loop() stop unexplains, i certainly made a mistake,...
By: cris92

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Fri, 20 Oct 2017 13:17:41 PDT
What sensor I shall use so that what I am telling can be seen in display? http://www.instructables.com/answers/What-sensor-I-shall-use-so-that-what-I-am-telling-/ 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 DIPUK1 I want to show or display what I am telling like "Hello World".I want to display it in lcd module.I am using Arduino Mega 2560.
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Thu, 19 Oct 2017 23:34:34 PDT
Arduino control of 4 wheelchair motors? http://www.instructables.com/answers/Arduino-control-of-4-wheelchair-motors/ 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 poppaIT I want to build an offroad/all terrain mobility vehicle and have simultaneous motor control using an Arduino, raspberry Pi, or similar mini board. I have very limited mobility and want to enjoy the outdoors more. Can this be done? I have 24volt motors, but not sure yet as to the watts.M
By: poppaIT

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Thu, 19 Oct 2017 17:26:11 PDT
EL wire, Xbee, Midi help? http://www.instructables.com/answers/EL-wire-Xbee-Midi-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 JohnM703 We are trying to make EL wire dance suits for a project. Does anybody know how to make a midi file, run it through an arduino, transmit it through xbee and have it sequence on a El sequencer all in time with music? https://www.sparkfun.com/products/12847 https://www.sparkfun.com/products/12898 We ...
By: JohnM703

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Thu, 19 Oct 2017 08:30:21 PDT
How does the 2-Pole DIP switch on version 13 ESP82266 Arduino expansion board work ? http://www.instructables.com/answers/How-does-the-2-Pole-DIP-switch-on-version-13-ESP82/ 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 agribot Hi, I bought a kit that uses a version 13 ESP8266 Arduino expansion board (shield). That version 13 is not a standard ESP8266 board. It has an unusual 2-pole DIP switch on it that can be set to "ON" or "1-2". I need to understand what the 2-pole DP switch does and I need to understand the electrical...
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Tue, 17 Oct 2017 02:47:38 PDT
Why does my Arduino script do the opposite of what I want? http://www.instructables.com/answers/Why-does-my-Arduino-script-do-the-opposite-of-what/ 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 Mpc1055 Hey out there! I am trying to write a code for an Arduino project I am working on. I am using an ultrasonic proximity sensor and an arduino nano clone. What I want is that when the object it detects is under 50cm an led turns on. When it senses an object farther than 50cm I want theLED to go off. Be...
By: Mpc1055

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Fri, 13 Oct 2017 15:45:53 PDT
Toggling LCD Backlight with arduino ? http://www.instructables.com/answers/Toggling-LCD-Backlight-with-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 BME22 Hey, I'm working on a project where I need my LCD to toggle between On/Off.  By default, the LCD is OFF showing nothing. When button is pressed, LCD should be ON. When the button is pressed again, the LCD will display a “shutdown” warning message at which the user can confirm or cancel. Right now, I...
By: BME22

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Thu, 5 Oct 2017 16:11:40 PDT
Control steppers with arduino or raspberry pi? http://www.instructables.com/answers/Control-steppers-with-arduino-or-raspberry-pi/ 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 JohnM703 we have this robotic arm at our school that is broken and we are trying to make it work. The motors are shot and we have no idea were the controller went. We are just going to put stepper motors instead. The problem is we have no idea how to control the motors. So my question is: How can you control...
By: JohnM703

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Wed, 4 Oct 2017 18:43:08 PDT
Drive DC water pump using Arduino? http://www.instructables.com/answers/Drive-DC-water-pump-using-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 DavidC1165 I'm looking for a way to drive a DC water pump (12V) with Arduino. It's for a uni project so it should be as cheap as possible. Would it be possible to control it with a transistor?  No speed varying is needed, only ON and OFF state.
By: DavidC1165

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Sun, 1 Oct 2017 09:47:11 PDT
How to reduce voltage from 24V to 12V and 5V? http://www.instructables.com/answers/How-to-reduce-voltage-from-24V-to-12V-and-5V/ 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 DavidC1165 I have a power supply with output of 24V, 1A. I need to reduce the voltage to 12V to power a water pump and to 5V in order to power an Arduino and an air pump.  Can I just create a voltage divider using resistors for this? The water pump has an input of 12V, 5W.
By: DavidC1165

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Sun, 1 Oct 2017 09:42:25 PDT
Temperature Controlled Desk Fan by Arduino? http://www.instructables.com/answers/Temperature-Controlled-Desk-Fan-by-Arduino/ https://cdn.instructables.com/F22/LXZD/J86HPTN2/F22LXZDJ86HPTN2.SQUARE2.jpg https://cdn.instructables.com/F22/LXZD/J86HPTN2/F22LXZDJ86HPTN2.SQUARE.jpg https://cdn.instructables.com/F22/LXZD/J86HPTN2/F22LXZDJ86HPTN2.SMALL.jpg rynoutis Good day, I saw project here about temperature controlled fan using arduino by Jacomax97.  I just finished building it, and I'm wondering if I want to use a standard desk fan instead of a 12v fan, what value of capacitors, transistors, and resistors should I use? Thanks in advance :) Here's the sche...
By: rynoutis

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Sun, 1 Oct 2017 00:47:25 PDT
Need Help with a simple arduino code plz? http://www.instructables.com/answers/Need-Help-with-a-simple-arduino-code-plz/ 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 Tigernoob HELLO instructables , i need help with writing an extra simple code over my arduino code that simply works with the arduino code i wrote , the description of what i want is very simple ,  I've got an ultra sensor i want if it reads a distance of less than or 10 cm it makes a red LED goes on. I've ...
By: Tigernoob

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Wed, 27 Sep 2017 03:28:04 PDT
How should I modify these code to send sensor reading to another Arduino? http://www.instructables.com/answers/How-should-I-modify-these-code-to-send-sensor-read/ 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 DavidC1165 Idea is to make a weather station using two Arduinos. They would communicate using RF transmitter and receiver. I tried to use VirtualWire library and its examples (named transmitter and receiver). I can send and print characters but I can't do the same with number(positive and negative). It's going...
By: DavidC1165

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Sun, 24 Sep 2017 08:13:05 PDT
Need help this fix arduino the error code please ? http://www.instructables.com/answers/Need-help-this-fix-arduino-the-error-code-please-/ 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 rosedgonzo im still beginner in arduino and i dont have any tutor to ask for ,i put the spi and mfrc522 library already ,please help me fix this error The copy error messages Arduino: 1.8.4 (Windows 7), Board: "Arduino/Genuino Uno" sketch_sep10a_teqj:10: error: 'MIFARE_Key' in 'class MFRC522' does not name a...
By: rosedgonzo

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Tue, 19 Sep 2017 19:55:06 PDT
how to control ultrasonic the servo should be steady if not detected by hands,upon closer your hand servo is get faster? http://www.instructables.com/answers/how-to-control-ultrasonic-the-servo-should-be-stea/ 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 Kirsch chu i need a code for ultasonic motor, controlling the servo motor. it should be steady if not detected by hand, and upon your hands getting closer to the ultrasonic the servo mototr getting faster. thank you
By: Kirsch chu

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Tue, 19 Sep 2017 05:31:25 PDT
How should I write a program to get a phone cal via GSM module if I get positive result with two sensors. http://www.instructables.com/answers/How-should-I-write-a-program-to-get-a-phone-cal-vi/ 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 abigailpearlin I have developed three codes one for GSM module to receive a phone call,Another for load cell sensor which will give output when a load is placed,and the next for PIR motion sensor if a human is detected. I'm in need of a code that would intimate through a phone call if I get positive resukts both i...
By: abigailpearlin

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Mon, 11 Sep 2017 06:57:51 PDT
What library is LTask.h in ? http://www.instructables.com/answers/What-library-is-LTaskh-in-/ 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 hsedidin I am getting atal error: LTask.h: No such file or directory
By: hsedidin

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Sun, 3 Sep 2017 13:17:14 PDT
Update Instructable or make new Instructable? http://www.instructables.com/answers/Update-Instructable-or-make-new-Instructable/ 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 fadecomic If you have revised a project that you wrote an Instructable for, is it common practice to update the instructable or write a new one? My changes are not really full 2.0 level, but they are a significant new step.  I have an Arduino based project, and I've pulled out the relatively expensive Arduin...
By: fadecomic

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Thu, 31 Aug 2017 11:38:27 PDT
Can i reuse an phone display? http://www.instructables.com/answers/Can-i-reuse-an-phone-display/ 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 AnghelutaA Can i reuse an huawei P8 lite's display for my arduino?If so can anyone help me
By: AnghelutaA

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Fri, 18 Aug 2017 12:32:14 PDT
How to add a memory function when I push a button http://www.instructables.com/answers/How-to-add-a-memory-function-when-I-push-a-button/ 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 tmercados I have a proyect with a MLX90614 (an ir infrared thermometer with I2c), and the output temperature is displayed in a oled 128x64 I2c, I am using an arduino pro mini, the code works well, but i want to add a function: I want to press a button that saves the temperature shown, in the right down corn...
By: tmercados

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Fri, 11 Aug 2017 20:21:07 PDT
Why does my screen not let me go beyond page 6? http://www.instructables.com/answers/Why-does-my-screen-not-let-me-go-beyond-page-6/ 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 Lesjbrown I am scrolling through Arduino Instructables but at the bottom of the page the index only shows pages 1, 2, 3, 4, 5, 6,.....  204, 205  but cannot go beyond page 6.
By: Lesjbrown

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Thu, 10 Aug 2017 13:05:13 PDT
I have a problem in this code for Arduino UNO , Can you help me? http://www.instructables.com/answers/I-have-a-problem-in-this-code-for-Arduino-UNO-Can-/ 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 Fares Mareai #include #include #define SOL_ADC A0     // Solar panel side voltage divider is connected to pin A0 #define BAT_ADC A1    // Battery side voltage divider is connected to pin A1 #define CURRENT_ADC A2  // ACS 712 current sensor is connected to pin A2 #define TEMP_ADC A3   // LM 35 Temperature is co...
By: Fares Mareai

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Sun, 6 Aug 2017 01:54:56 PDT
A good wireless arduino communication device for helium balloon that is supposed to fly for altitude of 10 km http://www.instructables.com/answers/A-good-wireless-arduino-communication-device-for-h/ 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 LeeS182 I'm finding a sensor for my project, which is going to fly the helium balloon and collect pressure/temperature/humidity data from around altitude of 10km. is there any good wireless communication device for my project?
By: LeeS182

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Tue, 1 Aug 2017 08:35:45 PDT
Audio Jack Signal Output for Arduino Nano? http://www.instructables.com/answers/Audio-Jack-Signal-Output-for-Arduino-Nano/ 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 CameronC82 So I am kind of new at this.  I am going to be making a LED lamp that has a sound detector module on it to control the LED's. (This one to be exact https://www.youtube.com/watch?v=5oRir4dck_w ) However i wanted to see if i could make a modification. If instead of having a sound sensor, could i jus...
By: CameronC82

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Mon, 31 Jul 2017 21:54:33 PDT
can we use same arduino programmed sketch for different motor drivers ? http://www.instructables.com/answers/can-we-use-same-arduino-programmed-sketch-for-diff/ 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 hardarknight i am expecting to build a bluetooth controlled 2WD robot using arduino. i need to use a pulolu dual VNH motor driver to run the two motors. i have a programmed arduino sketch that made for L293D Motor Shield .can i use that programmed sketch on my new robot that using pulolu motor driver without mak...
By: hardarknight

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Mon, 31 Jul 2017 03:17:07 PDT
help with code for soldering station project? http://www.instructables.com/answers/help-with-code-for-soldering-station-project/ 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 spikepickstock Hey all I've been doing following this project https://www.instructables.com/id/DIY-Arduino-Soldering-Station/#C6PH4VQJ4OFNPGG with changes in the fact i'm using a UNO rather than a NANO (got the nano and forgot about the loader) and using a 30k pot instead of the 50k it calls for as a test bed   M...
By: spikepickstock

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Sat, 22 Jul 2017 00:47:50 PDT