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

Explore our questions

0 votes
0 answers
24 views

RS422 with Arduino

1 vote
0 answers
27 views

Arduino sketch doesn't work when uploaded to arduino nano and OLED display shows npothing (possible issue: lack of memory)

1 vote
1 answer
65 views

Good practice to assign shift-register pins at the same time?

0 votes
0 answers
33 views

Arudino Uno: Servo Example Sketch signal: killed Compilation error: signal: killed

0 votes
0 answers
24 views

Barcode scanner doesn't read when adding thermal printer code

7 votes
3 answers
23k views

Creating formatted String (including floats) in Arduino-compatible C++

2 votes
1 answer
231 views

TFMini Sensors with Arduino

1 vote
2 answers
678 views

Read Multiple Sensors Data from a text file located in SD Card in Arduino/ESP32

0 votes
1 answer
111 views

Host a webserver on esp32d that has a hyperlink that triggers an ardiuno song through a buzzer

1 vote
0 answers
28 views

how to config size USB mass storage arduino nano ble 33?

1 vote
2 answers
3k views

Function declared in another file not recognized (undefined reference to)

66 votes
2 answers
222k views

How do you use SPI on an Arduino?

1 vote
0 answers
58 views

Pool pump man-in-the-middle SDA/SCL with ESP32

0 votes
1 answer
133 views

if statement does not work with fraction, but works with decimal equivalent

Browse more Questions