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Top Questions

5 votes
3 answers
1k views

Arduino to Arduino communication

3 votes
1 answer
543 views

Arduino Nano is performing really slowly, even though the calculations are simple and there are no delays

2 votes
3 answers
410 views

Is there a way to increase the number of output pins in Arduino Uno? [duplicate]

2 votes
1 answer
348 views

How can I compensate for a joysticks offset value in neutral position?

2 votes
2 answers
261 views

reading device or board specific properties from the Arduino MKR WiFi 1010 device

2 votes
1 answer
159 views

Why am I getting wrong compass heading using magnetometer readings?

0 votes
1 answer
203 views

A fatal error occurred: Could not open /dev/ttyUSB0, the port doesn't exist (UART bridge CP2102) [duplicate]

0 votes
1 answer
68 views

Turn on by long press of a button?

0 votes
1 answer
51 views

Why is char being "extended" to an int?

0 votes
2 answers
83 views

Arduino Pro Micro not recognizing INPUT or INPUT_PULLUP

2 votes
1 answer
57 views

Read values from a txt file on an SD card

-1 votes
1 answer
79 views

convert string representing a binary number to binary

0 votes
0 answers
101 views

Parsing JSON data on ESP32

2 votes
1 answer
59 views

Limit of EthernetClient connections

0 votes
1 answer
73 views

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

2 votes
1 answer
67 views

How to refresh an iframe in a page made with Espasyncwebserver

-1 votes
1 answer
63 views

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

2 votes
2 answers
58 views

Using Internal Timer Interrupt to Read Analog Sensor

0 votes
0 answers
68 views

PIC16F1829 I2C interface with esp32

-3 votes
1 answer
41 views

Is the EEPROM the best alternative for store non-volatile values with Arduino?

0 votes
1 answer
39 views

With TIMER1 in CTC mode can't get above ~200khz in arduino UNO runnning @ 16MHZ with no prescaller?

0 votes
0 answers
61 views

The text on the display is moving, although it shouldn't. OLED 0.96 [closed]

1 vote
1 answer
47 views

how to make this code work with spiffs?

-2 votes
0 answers
59 views

Arduino resets when 10k pot is set to max value [closed]

-1 votes
1 answer
57 views

Read byte and time into EEPROM, then display with a comma between the time and the value?

-1 votes
2 answers
56 views

How to create minimal web server example with a dropdown menu?

1 vote
2 answers
33 views

Can Arduino UNO/MEGA master assert SPI SS LOW on multiple slaves at once if Full Duplex is unnecessary?

3 votes
1 answer
42 views

Arduino Servo with temperature sensor (TMP36)

1 vote
1 answer
42 views

ArduinoJson reading `null` from Serial

1 vote
1 answer
42 views

Is it possible to use UART0 freely when connecting ESP32 s3 via USB (D+, D-)?

0 votes
3 answers
67 views

Concatenate char arrays into a uint8_t array [closed]

0 votes
1 answer
40 views

The port is not recognized when working with esp32 in arduino ide 2.2.1 (windows 11 home edition)

0 votes
0 answers
47 views

Share Wifi credentials via Access Point from Native App

-1 votes
1 answer
47 views

Serial does not read buffer with integer characters greater than 43

-2 votes
0 answers
47 views

Lost in ultrasonic readings when motors start tunning at high speed

0 votes
1 answer
35 views

ATTINY 85 - use host laptop's internet

-1 votes
1 answer
35 views

How to get recover numeric data sent by an Arduino in binary

-1 votes
0 answers
44 views

How to read from specific registers with Wire library?

-1 votes
0 answers
43 views

Help for a sketch ESP32 [closed]

0 votes
1 answer
43 views

Python script cannot connect to serial port

0 votes
1 answer
31 views

blink a Grove - RGB LED Stick

-1 votes
1 answer
24 views

Multiple definition error in STM32CubeIDE

1 vote
1 answer
39 views

How to add one JsonDocument to another in ArduinoJson

0 votes
0 answers
38 views

Having Trouble Decoding UART Signal with Logic Analyzer - Need Suggestions [closed]

-2 votes
0 answers
38 views

Arduino digital pin output is not low [closed]

-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]

-3 votes
0 answers
37 views

Adding SIM808 to RFID attendance code to send messages to each parent to confirm their child is in class [closed]

-1 votes
0 answers
37 views

0.66in I2C OLED Display issue with Adafruit 1306 Library


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