Arduino Stack Exchange is a question and answer site for developers of open-source hardware and software that is compatible with Arduino. It only takes a minute to sign up.

Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top
Arduino

Top Questions

Ask Question
Active Hot Week Month
5 votes
2 answers
1k views

Arduino to Arduino communication

computercarguy's user avatar
computercarguy
  • 240
0 votes
1 answer
67 views

(Why is) getLocalTime() on ESP32 taking several seconds to complete successfully

st2000's user avatar
st2000
  • 7,130
0 votes
0 answers
67 views

PIC16F1829 I2C interface with esp32

Bottle's user avatar
Bottle
  • 1
-1 votes
1 answer
47 views

error: expected unqualified-id before 'if' if (send) { but all semicolons are available

Juraj's user avatar
Juraj♦
  • 17.6k
0 votes
1 answer
40 views

Python script cannot connect to serial port

Дмитрий Насонов's user avatar
Дмитрий Насонов
  • 9
-1 votes
0 answers
39 views

Help for a sketch ESP32 [closed]

chrisl's user avatar
chrisl
  • 15.6k
-2 votes
0 answers
38 views

Arduino digital pin output is not low [closed]

Tanwa Kankang's user avatar
Tanwa Kankang
  • 7
-2 votes
0 answers
38 views

Good great mind . i have coded error which is troubling me . Compilation error: 'debounce' was not declared in this scope [closed]

RedGrittyBrick's user avatar
RedGrittyBrick
  • 1,142
-1 votes
0 answers
36 views

How to read from specific registers with Wire library?

Bruce's user avatar
Bruce
  • 1
-1 votes
0 answers
34 views

0.66in I2C OLED Display issue with Adafruit 1306 Library

jsotola's user avatar
jsotola
  • 1,406
-1 votes
0 answers
32 views

Driving large number of WS2812B LEDs - Optimize for speed by grouping? [closed]

lobis's user avatar
lobis
  • 1
-2 votes
1 answer
32 views

L LED on Arduino is constantly on and com is not detected

Nick Gammon's user avatar
Nick Gammon♦
  • 37.6k
-1 votes
0 answers
31 views

How to combine all of these codes? [duplicate]

jsotola's user avatar
jsotola
  • 1,406
-2 votes
0 answers
30 views

Changing the value of a global variable resets the board [closed]

Banyi Dan's user avatar
Banyi Dan
  • 1
-2 votes
0 answers
29 views

RX Pin (19) of Mega2560 works until TX Pin (18) is connected [closed]

Gymknopf's user avatar
Gymknopf
  • 1
0 votes
1 answer
29 views

ESP-IDF logging library slows down ISR processing

the busybee's user avatar
the busybee
  • 1,713
-2 votes
0 answers
29 views

Phone fingerprint scanner working with Arduino

dda's user avatar
dda
  • 1,553
-2 votes
0 answers
28 views

Source and time saving issue [closed]

Gleb Baburin's user avatar
Gleb Baburin
  • 1
0 votes
0 answers
28 views

Can you send data through battery connectors or pogo connectors? [closed]

Monset's user avatar
Monset
  • 109
-1 votes
0 answers
27 views

IEEE 1284 communication to printer

Arthur Isnt original's user avatar
Arthur Isnt original
  • 31
-1 votes
0 answers
24 views

DIY Quadrature Encoder? [closed]

tote46's user avatar
tote46
  • 1
-1 votes
1 answer
23 views

How to code waterflow sensor using solenoid valve as a leakage detection system? [closed]

Edgar Bonet's user avatar
Edgar Bonet
  • 41.4k
-1 votes
0 answers
23 views

Running WearOS on Esp32 S3 [closed]

BONIIXS's user avatar
BONIIXS
  • 1
1 vote
0 answers
19 views

Keyestudio KS5009 ESP32WROOM32 Smart Home

jsotola's user avatar
jsotola
  • 1,406
-2 votes
0 answers
18 views

Sending message from main controller (Arduino UNO) to mutliple mico-controllers (Attiny) [closed]

user avatar
siddharth09
-1 votes
0 answers
17 views

Arduino Uno USB Host Shield Keyboard not responding [closed]

berto's user avatar
berto
  • 1
-1 votes
0 answers
16 views

Adafruit BNO08x breakout sensor report and Arduino Due [closed]

soph's user avatar
soph
  • 1
-1 votes
0 answers
16 views

Protect ADC input ADS1115 [closed]

pluciano's user avatar
pluciano
  • 1
-1 votes
0 answers
15 views

How to power 8 servos with 6.8v at 2 amps while controlling with pi pico [closed]

Masheroomboi 's user avatar
Masheroomboi
  • 1
0 votes
1 answer
14 views

Can't connect esp8266 via USB to Linux Mint 21.1 [duplicate]

DasMoorhuhn's user avatar
DasMoorhuhn
  • 1
-1 votes
0 answers
11 views

Reading temperature from adc value(Non linear)- STM32G491RE

chrisl's user avatar
chrisl
  • 15.6k
0 votes
0 answers
11 views

How can I program Arduino Pro Mini using ESP01? [duplicate]

Pie's user avatar
Pie
  • 1

Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.