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Top Questions

1 vote
3 answers
64 views

AREF pin on Arduino Uno R3

1 vote
1 answer
68 views

How to detect when a key is played on a musical keyboard

0 votes
2 answers
54 views

ArduinoModbus / RS485 conflict between Serial and Serial1

0 votes
1 answer
71 views

Arduino Nano spontaneously stops working and disconnects from computer [closed]

-1 votes
1 answer
41 views

Class private variable values not accessible in public function

-1 votes
0 answers
75 views

LILYGO T-Display-S3 (ESP32), TCA9548A and AHT20 Sensors

1 vote
2 answers
58 views

Can't exit while loop

0 votes
0 answers
71 views

Arduino UNO RX LED always on and can't upload any sketch

0 votes
0 answers
70 views

ESP32-CAM stream freezes with ESPAsyncWebServer

2 votes
1 answer
68 views

Arduino R3 Uno Clone - When barrel plug connected there is 5V on USB. Why?

0 votes
0 answers
67 views

Make ws2812 leds working from arduino uno rev 3 powered from battery

1 vote
1 answer
49 views

Confusion re: getting bootloader onto new-out-of-the-box Nano v3.0 (classic)

1 vote
0 answers
59 views

Is it possible to create a RS485 bridge over Wifi using 2 ESP07's

-1 votes
0 answers
57 views

avrdude -Strange behavior

0 votes
1 answer
41 views

Software debouncing a button when released

1 vote
1 answer
36 views

Re-using built-in USB port to charge battery

0 votes
1 answer
45 views

ESP32CAM behaving unusually

-1 votes
0 answers
45 views

I need to know about coordinate tracking of a robot through arduino [closed]

-1 votes
0 answers
45 views

Low-power wireless transmission using ATtiny85 or Arduino

1 vote
1 answer
41 views

Error: void value not ignored as it ought to be done = radio.read(&Irms, sizeof(float));

0 votes
0 answers
39 views

BLE Scan Example using ESP32C3 board and ESP32 Arduino BLE libraries

0 votes
1 answer
30 views

Problems sending data to my Arduino from Python using pySerial

0 votes
0 answers
37 views

AD8232 Sensor output problem

-1 votes
0 answers
36 views

Compiling Errors with TFT Display (MCUFriend - Arduino Uno R4)

0 votes
0 answers
36 views

Arduino Uno, TCA9548, BME280 - Not Found Sensors BME280

1 vote
1 answer
28 views

Different pin names in 0V7670 Camera Module

-1 votes
0 answers
35 views

Why do I get the error dtostrf and ltoa not declared in the scope? [closed]

0 votes
1 answer
43 views

Interfacing A9G with Arduino for AT commands testing

-1 votes
1 answer
26 views

Use DS3231 with battery and vcc at the same time

0 votes
0 answers
33 views

LILYGO T-Display-S3 (ESP32) with two AHT20 don't work

-2 votes
0 answers
33 views

How can I prevent my Arduino account from being deleted? [closed]

-1 votes
0 answers
30 views

RTC Crystal Severe Timing Inaccuracy [closed]

1 vote
1 answer
30 views

Software Serial Communication Problem between ESP8266 and Arduino Mega for Plant Monitoring System (using Blynk IoT)

0 votes
0 answers
28 views

Is my Arduino Uno R4 Led Matrix broken? [closed]

-1 votes
0 answers
27 views

rc522 'PCD_Authenticate() failed: Timeout in communication.' with any card

0 votes
0 answers
26 views

How to tell if Uno R3 mega16u2 is dead after voltage regulator blew up (and removed) - still draws ~250mA via USB, polyfuse is hot

0 votes
0 answers
26 views

avrdude: butterfly_recv(): programmer is not responding problem on arduino leonardo and can't upload code

0 votes
1 answer
26 views

Get GPS position from a Heltec Wireless Tracker arduino

-3 votes
0 answers
24 views

Is there a way to post data to cloud on demand?

0 votes
0 answers
23 views

Arduino Line Notify Stops Working After 1 Hour

0 votes
0 answers
22 views

Arduino Nano ESP 32 board (ABX00083) SPI interface not working

0 votes
1 answer
20 views

Arduino Mega 2560 time delays counting between events on different pins

0 votes
0 answers
20 views

How to extract hex file from working MKR Zero

-2 votes
0 answers
20 views

192X64 LCD not working properly (SBN0064) [closed]

-2 votes
0 answers
18 views

I need the button to set the time after which the entire cycle stops [closed]

0 votes
0 answers
18 views

Looking for a library with basic EtherCAT master functionality

-1 votes
0 answers
13 views

ESP-01 not responding to the code on Arduino Uno board, but connecting to the Wi-Fi [closed]

0 votes
0 answers
13 views

PintChangeInt suddenly don't works [closed]


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