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Arduino : Recent Questions and Answers

Find answers to your questions about Arduino or help others by answering their Arduino questions.

Bootloader problem on Arduino Uno?

Since today, my Arduino Uno (using Arduino IDE version 1.8.13) lost the capacity to store a sketch upon physical disconnection (does not include button reset). This means, the sketch works...

Asked on 12/05/2021

0 answer

Is it required to delete variables before going to sleep?

This tutorial shows how to put the arduino to sleep and use a watchdog to wake up at intervals: I been studding c++ and as I...

Asked on 11/30/2021 by Tono Nam

1 answer

I2C comunication, ESP->Nano on endTransmission no ACK fron nano

i am trying to communicate between ESP(master) and arduino nano(slave). This is only a prototype and all works fine. But i want to add multiple arduinos and therefor i...

Asked on 11/30/2021

1 answer

Arduino Nano - How to add multiple sensors? Lithium battery requirements? LED requirements?

I am new to arduino and need help with a couple projects I am working on. One involves the use of 2 sensors - one pulse sensor, and one vibration...

Asked on 11/27/2021 by user67776

4 answer

Running Arduino with 2 outputs and 2 inputs

Totally new to Arduino, 3 weeks old! I am doing a project with 2 inputs (2 x ultrasonic sensors) and 2 outputs (buzzer and send SMS) The code to run...

Asked on 11/25/2021

2 answer

How to read a specific amount of data via serial?

I'm trying to send data via serial from my Arduino nano to my ESP. Its an integer from 1 to 4 digitsso something like 0, 13, 1234, 123, ......

Asked on 11/20/2021 by noxus Nexus

1 answer

Can you access the EEPROM of an ATtiny with Arduino Code?

I'm attempting to reduce the amount of RAM being used by my program by writing some values to the EEPROM of my micro controller. I'm currently programming on the ATtiny85...

Asked on 11/17/2021 by Isabel Alphonse

4 answer

Possible to create IP-to-USB HID (keyboard) device using Arduino?

Is it possible to create an IP-to-USB HID (keyboard) using Arduino? I'd like to connect an Arduino to my network using Ethernet, and then send it commands using TCP/IP and...

Asked on 11/15/2021

1 answer

GPS detecting stationary?

can someone please point me at some code snippets to detect when the GPS is stationary. I am currently using tinyGPS library and it is working fine, but my data-logger...

Asked on 11/15/2021 by LinuxFerLife

1 answer

Unable to use ir receiver and motor shield together

#include <IRremote.h>#include <AFMotor.h>AF_DCMotor motor(1);int RECV_PIN = 14;//The definition of the infrared receiver pin 11IRrecv irrecv(RECV_PIN);decode_results results;void setup(){ Serial.begin(9600); //Open serial irrecv.enableIRIn(); // Initialization infrared receiver ...

Asked on 11/13/2021

0 answer

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