Questions tagged [arduino]

Arduino is an open-source electronics prototyping platform based on easy-to-use hardware and software. Questions should relate to programming Arduinos only (as in contain code). General Arduino questions may be asked on https://arduino.stackexchange.com

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SONY Spresense source code is missing on GitHub

One utility is preventing me from developing on 32bit Linux securely.The mkspr executable has no sources. This has two issues, as it is 64bit only binary, and I don't like running code on my machine ...
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[ARDUINO]How to use 4x4 membrane keypad with 16channel multiplexer?

I´m working on an Arduino project, and i have ran out of usable pins.To put it simple, i need to find a way to use traditional 4x4 membrane keyboard through 16-channel multiplexor 74HC4067. So far, i ...
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50 views

Why does my switch/case default when using enums?

I have the following switch/case statement in Arduino 1.8.7 where the variable led is an integer: switch (led) {case ALL: {/* do stuff */break;}case LED1: {/* do stuff */...
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38 views

Ajax call inside webpage repeated on refresh

I'm running a server, serving a simple webpage. The page has buttons forming a keypad that make simple Ajax calls to the server, like this:<button class="push white-outline" onclick="...
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How to operate a BLDC motor?

I am trying to operate a BLDC motor using IR2110 motor driver and IRFZ44N MOSFET. But each time all the low side MOSFET and phase 3 driver(IR2110) are burning. In this position my motor is only ...
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EPSON D1370002A1 controller with arduino

I have a GLCD with EPSON D1370002AI controller (320x240). I want to control this GLCD using an Arduino.Is there any library for this controller?If someone can give useful information, greatly ...
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19 views

error between arduino and aparche server(php)

#include <SPI.h>#include <SD.h>#include <SPI.h>#include <Phpoc.h>#include <pcmConfig.h>#include <pcmRF.h>#include <SD.h>#include <TMRpcm.h>...
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1answer
31 views

What should be the ideal value for I controller in PID for a quadracopter

I am making a quadracopter using Arduino, gyro and accelerometer, 1000kv motor with 30A esc.While writing the program for flight control I am doubtful of the value to be used for 'I' controller in ...
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How to calculate the distance between two Arduino with HC-SR04

I have two Arduino, and each of which is connected to the ultrasonic sensor HC-SR04. I try to calculate the distance between them, sending a signal from one Arduino and taking to another. I decided to ...
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10 views

Video Streaming on live internet with raspberry pi [on hold]

I want to stream live video from my raspberry pi camera to my website without any port forwarding.I have searched a lot but I don't find anything as to how this can be done.
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How to write code in c on ARDUINO to make resistor value convert to color code and print to LCD [on hold]

I need to write code that converts a number input for a resistor and change it to a color code and then print it to an LCD screen in C on an ARDUINO UNO.Here's my attempt so far:void setup(){...
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Define environment variable based on target (build or upload)

On Visual Studio Code with PlatformIO when I click on [v] button (PlatformIO:Build) the IDE run following task:> Executing task: C:\Users\Mary\.platformio\penv\Scripts\platformio.exe run <...
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controlling DC motor with Arduino PID library and python openCV

So i am trying to make a ball following robot using image processing and Arduino and DC motors so the camera sees the robot and the ball and detects there positions so i need the dc motor to run ...
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17 views

Deploying program from Atmel Studio or Avr dude to Atmel “XMEGA-A3BU Xplained”

Im attempting for the last 3-4 days to connect the Atmel dev board to the computer in order to either load the .elf or hex file to the bootloader in order to turn on the LED based for an assignment....
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How to receiving post method with PHP from ESP32 [on hold]

I have a library to send picture to Line notify 1.https://github.com/Bohatman/ESPino32/blob/master/src/LineNotify.cpp2.https://github.com/Bohatman/ESPino32/blob/master/src/LineNotify.hI want to ...

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