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how can i detect face using an esp32 cam module and control a relay?

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md rakib hossen
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1 answer
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Having trouble passing data through RF24

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3 votes
1 answer
1k views

3.5 inch TFT LCD connection diagram with mega r3

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Rohit Gupta
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Adding a vector from C++ (dynamic array) to Arduino 2.3.2 if there is memory in the microcontroller? [closed]

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Nikolai Vorobiev
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1 answer
357 views

How to find the time of any point on the graph on an Arduino serial plotter or Processing software?

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Does changing the prescale for Timer 0 or Timer 2 affect the micros() function?

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Edgar Bonet
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Intermittent read failure when merging binary files on ESP32-S3 using SdFat library

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Devloper
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2 votes
0 answers
5k views

Connect more than 4 BLE clients to ESP32 BLE Server

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Rohit Gupta
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2 answers
283 views

AD8232 - Measuring heart rate only if USB connector is touched. Grounding issue?

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Basher
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0 answers
16 views

Sending data through LoRa with ESP32-E

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dda
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1 answer
31 views

WiFi credentials pulled from an SD card fail, but work hard-coded?

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radioloko
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1 answer
37 views

Can the ATTiny88 be programmed via I2C from a Raspberry Pi?

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Matt
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11 views

How can I improve the power supply for my Arduino-based sensor system?

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dda
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426 views

Incremental Rotary Encoder sends data when shaft is untouched

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7 views

GSM800L supports M2M SIM card? [closed]

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jsotola
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1 answer
103 views

LED ring with different effects cycling

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1 vote
1 answer
192 views

Obtaining wrong analog readings using the ESP32 devkitc v4

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Gil Sven
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BMS (battery management system for 18650 of 2s cell) is resetting my esp32 continously after it reaches lower voltage limit

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Gil Sven
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1 answer
404 views

Working with two analog sensors, ATmega16 [closed]

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289 views

Function of rxAlign parameter in the PCD_ReadRegister function in MFRC522 Library

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3 answers
4k views

Why do DigiKeyboard.print and println change my string?

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25 views

are there any apps to serially receive information from a nodemcu device to see info like sensor data such in android app? [closed]

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KANAMARLAPUDI VISHAL -IIITK
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Cannot get PCA9685 board to work

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Frosty126
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7 votes
4 answers
15k views

Access serial monitor on linux cli? Using arduino-cli?

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Greenonline
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28 views

PCB design verification

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Gil Sven
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2 votes
2 answers
292 views

Is is possible to install a bootloader to an Arduino clone without a physical programmer?

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1 vote
1 answer
273 views

Multiple Arduinos connected to one display

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1 answer
145 views

Possible to have different torque levels on MG966R servo with Rotary Potentiometer?

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1 answer
32 views

Urgent help/advice needed for a fish autofeeding device using NodeMCU

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liaifat85
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1 answer
21 views

Can't upload in Platformio and board is suddenly not detected in STM32CubeProgrammer

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liaifat85
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1 answer
43 views

ATmega328 PCB schematic [closed]

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Greenonline
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0 answers
14 views

Portenta Machine Control programming

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vini_i
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1 answer
141 views

More flash memory with SD card

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1 answer
377 views

MCU Recommendations for Audio Pitch Shifting

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19 views

ERROR: expected Primary-expression before ';' token [closed]

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chrisl
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1 vote
1 answer
361 views

Can't mount microSD card with Freenove ESP32 WROVER Module and Sparfun MicroSD module

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24 views

Trying to send a JSON-formatted HTTPS POST request from ESP32 results in Code 400

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andrew g
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17 views

I need two (25 and 30 kHz) pwm output on a nano

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ted thomas
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1 answer
79 views

IR sketch keeps getting the same code: 4294967295

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18 views

Bluetooth Game Controller-Help with a bluetooth hc05 and fuduino shield to make a bt gamepad (Complete newbie.)

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Karan Dicholkar
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-1 votes
1 answer
42 views

Arduino and custom pcb

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Edgar Bonet
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1 answer
42 views

How Do I Power An Arduino Nano Every?

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Nick Gammon♦
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1 vote
1 answer
709 views

Sending servo position data from one Arduino to another

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2 votes
1 answer
2k views

MPU6500 via SPI

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Gil Sven
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1 answer
7k views

How to wrap/scroll text with U8G2?

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Gil Sven
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-1 votes
1 answer
38 views

Arduino R3 hangs Raspberry Pi 3B+ when plugging into USB ports, with multiple sensors on board (Node Red) ,Temp Humidity, volts, shunt

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Duncan Burt
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0 answers
13 views

SPI plug in adapter for eInk [closed]

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stuart
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1 answer
174 views

Code for ST7789 NO CS pin - Using XIAO ESP32C3

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Bill Webster
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