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Top Questions

2 votes
1 answer
718 views

Using a keypad to play an audio file on Arduino Mega and Adafruit VS1053?

-1 votes
0 answers
5 views

Arduino handbrake for pc sim software issue

0 votes
0 answers
6 views

Is it possible point to a register on a slave device

0 votes
1 answer
63 views

Arduino Cloud Editor doesn't work on ChromeOS

-3 votes
0 answers
36 views

How can I change the direction of step motor "28BYJ-48 "using "Stepper.h" library? and increase the velocity more than 100 RPM without bug?

1 vote
0 answers
319 views

Teensy freezing when reading ir sensor

0 votes
2 answers
3k views

Where are RX and TX pins on the GT2560?

0 votes
0 answers
23 views

BLE Scan Example using ESP32C3 board and ESP32 Arduino BLE libraries

0 votes
0 answers
20 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

3 votes
1 answer
25k views

Drivers for CH9102X serial port chip

-3 votes
0 answers
18 views

Control Grove/RGB LED Stick with CircuitPython [closed]

2 votes
1 answer
1k views

Arduino Mega2560, Ethernet Shield & OV0706: "Camera not found"

-2 votes
1 answer
41 views

Detect I2C signals via LED (SDA+SCL) [closed]

1 vote
2 answers
50 views

Can't exit while loop

0 votes
1 answer
58 views

Digital pin outs inverting "sometimes"

0 votes
1 answer
939 views

Detecting I2C transfer with LED

1 vote
1 answer
927 views

MPU6050 FIFO overflow and freezing problems

-3 votes
0 answers
47 views

String() constructor crashing chip [closed]

0 votes
0 answers
110 views

Adjusting brightness of 1-digit 7-segment indicator with 74HC595

0 votes
0 answers
17 views

AD8232 Sensor output problem

0 votes
2 answers
44 views

ArduinoModbus / RS485 conflict between Serial and Serial1

-1 votes
0 answers
26 views

Question about "noise" on my ESP32 radio [closed]

0 votes
1 answer
36 views

Software debouncing a button when released

1 vote
2 answers
11k views

Keyboard.h: No such file or directory - Arduino pro micro (leonardo)

0 votes
0 answers
12 views

How to extract hex file from working MKR Zero

-2 votes
1 answer
250 views

How many sensors can be used in arduino for my project? [closed]

-1 votes
0 answers
9 views

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

-2 votes
1 answer
89 views

Is it possible to power an Arduino and a bulb from the same source without a risk [closed]

0 votes
0 answers
20 views

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

0 votes
0 answers
17 views

Send song from phone to esp32 via wired communication [closed]

1 vote
1 answer
39 views

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

1 vote
1 answer
815 views

DS1302 RTC module running too fast

1 vote
0 answers
182 views

Sharing data between M4 and M7 on a Giga R1 at high speeds

-1 votes
0 answers
34 views

How to add multiple sensors to a single Arduino nano [closed]

-1 votes
0 answers
25 views

power saving code for stm32f103c8 on arduino framework platformIO [closed]

-1 votes
0 answers
51 views

I want to dim a light using only an arduino [closed]

0 votes
0 answers
27 views

Attiny85 - Arduino ISP programming failed [closed]

0 votes
1 answer
41 views

How can I identify the abilities of my ESP32 module?

-1 votes
1 answer
53 views

LED ring with different effects cycling

1 vote
0 answers
42 views

Help with combining sensor codes

2 votes
2 answers
637 views

How do I find the whole number (n) that when multiplied by (m) will be closest to (x)? [closed]

4 votes
5 answers
16k views

How to convert byte *payload to String

1 vote
1 answer
73 views

Arduino IDE 2.3.2 Not Launching New Install

-1 votes
0 answers
9 views

LSM6DSOX OSError: [Errno 5] EIO for RP2040 Micropython

1 vote
1 answer
50 views

Which Bluetooth Module can I use with Arduino Micro?

1 vote
1 answer
134 views

Why does filling up a large char array cause a crash? (ESP8266)

0 votes
0 answers
33 views

Data constant and always zero from the ADXL345 accelerometer with ESP32 using SPI

21 votes
1 answer
12k views

How does serial communications work on the Arduino?


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