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Development boards Arduino
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Rules: Instructions for posting photos and pictures on the forum

gulson   28 Jul 2011   (0)
Global rules
28 Jul 2011 11:59

ESP32-P4 10.1 school bell project compilation in Arduino IDE 2.3.8

info-tech   23 Mar 2026   (5)
ESP8266 i ESP32
25 Mar 2026 17:46

M5StickC Plus 2 and Bruce OS - alternatives, Alpha AWUS036AXM support via USB hub

andrzejgrabowski83   17 Mar 2026   (3)
ESP8266 i ESP32
17 Mar 2026 21:38

ESP8266 start-up problem with shared ground with PC817 and 5V signal from Tapo P100

JDam   25 Feb 2026   (2)
ESP8266 i ESP32
25 Feb 2026 03:20

ESP32-S3 ESP-IDF - VL53L4CD I2C, IO.WriteReg/Address indicators null, Guru Meditation

kaczmarekabt   20 Jan 2026   (11)
ESP8266 i ESP32
16 Feb 2026 11:31
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[Solved] WeMOS D1 mini ESP8266-12F CH340, ArduinoIDE 1.8.9 WinXP - does it work or not?

Gelip   16 Jan 2026   (2)
ESP8266 i ESP32
17 Jan 2026 13:07

How to connect ESP32 to FF LE-03D CT energy meter for pulse reading?

prezmulti   11 Jan 2026   (28)
ESP8266 i ESP32
12 Jan 2026 14:56
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ESP32U - no Minimal SPIFFS option (1.9Mb APP/190Kb SPIFFS) in Arduino IDE, what to choose?

wosiekpl   05 Jan 2026   (6)
ESP8266 i ESP32
07 Jan 2026 22:05

Connection of 3.3V PIR sensor on 15-20m cable - interference, voltage drops

Michal8883   16 May 2025   (8)
ESP8266 i ESP32
05 Jan 2026 07:44

ESP32 DevKit v1 + LCD ILI9486 white screen - no image, SPI pin configuration

darex120   08 Dec 2025   (26)
ESP8266 i ESP32
28 Dec 2025 11:43

0 ESP32 AudioKit 2.2 - no sound when playing WAV from SD, code from ESP8266Audio

Said   17 Dec 2025   (0)
ESP8266 i ESP32
17 Dec 2025 08:08

ESPEasy: How to add a 15 s condition for t#Ktz>70 and flow<1 in the rules script?

sznickers   15 Dec 2025   (1)
ESP8266 i ESP32
16 Dec 2025 13:29

Smokehouse analogue thermometer for PT1000, LM358 and ESP8266

sznickers   12 Nov 2025   (52)
ESP8266 i ESP32
15 Dec 2025 17:56

ESP32-S3-WROOM-1 with PN532: no reading of NFC tags in I2C and SPI mode. What to do?

Heweliusz03   14 Feb 2025   (10)
ESP8266 i ESP32
02 Dec 2025 21:14

Arduino IDE 2.3.6 on Win11 - no 9600 and 115200 baud for ESP32 ESP-WROOM-32U

fachman1964   14 Nov 2025   (15)
ESP8266 i ESP32
02 Dec 2025 14:40

ESP32 WTH01 - how to plan the connection of modules to the ESP

sznickers   25 Nov 2025   (6)
ESP8266 i ESP32
27 Nov 2025 10:15

ESP32-S3, display and example compilation errors on PlatformIO vs Arduino IDE

Honsu   25 Nov 2025   (2)
ESP8266 i ESP32
25 Nov 2025 12:19

0 Evo3.19.33 - device resets after connecting to Wi-Fi, what could be the cause?

Jarosław 1808   24 Nov 2025   (0)
ESP8266 i ESP32
24 Nov 2025 00:28

ESP32 DevKit-C v4 not detected by computer, no connection via USB/COM

Roli   09 Nov 2025   (18)
ESP8266 i ESP32
22 Nov 2025 17:53

Flashing OpenBK OTA on Tasmota-Flashed ESP8266: Is Serial Upload Required?

erdeidominik1999   17 Nov 2025   (2)
ESP8266 i ESP32
18 Nov 2025 00:29

0 PZEM-004T when voltage is applied from another phase - is replacing R500 sufficient?

sznickers   14 Nov 2025   (0)
ESP8266 i ESP32
14 Nov 2025 23:17

OpenBK Compatibility with ESP8266MOD (ESP-12F) and 4MB Flash Size

Tilator   09 Nov 2025   (6)
ESP8266 i ESP32
10 Nov 2025 07:14

Mill ESP32 Esphome - what is connected to GPIO35? Fluctuating voltage on a pin

redblue   09 Nov 2025   (9)
ESP8266 i ESP32
09 Nov 2025 20:18

[Solved] ESP32 WTH01 RJ45 Ethernet: Compatible Library for ESP Easy Firmware?

sznickers   01 Nov 2025   (1)
ESP8266 i ESP32
01 Nov 2025 21:17

[Solved] ESP32 WROOM: error Wrong boot mode detected (0x17) - how to set the download mode?

PRL   09 Oct 2025   (9)
ESP8266 i ESP32
15 Oct 2025 14:24

[Solved] Atmega Fusebit Doctor v2.11 with Atmega328P: Serial Monitor Output Issues at 38400 Baud

robinn123   09 Oct 2025   (2)
Microcontrollers Beginners
10 Oct 2025 03:44

Which cheap and developmental ESP32 module to choose? Brief characteristics and opinions

gregor124   04 Oct 2025   (8)
ESP8266 i ESP32
05 Oct 2025 16:19

Gosund Nite Bird WB4 - Issues Flashing Tasmota Firmware, No Feedback

domio33   04 Jan 2023   (29)
ESP8266 i ESP32
03 Oct 2025 18:46

ESP32CH340 + PZEM-004T v3.0 + ST7789 - how to write voltage and kWh meter code?

G.R.   15 Sep 2025   (1)
ESP8266 i ESP32
18 Sep 2025 18:16

0 How to Configuring OpenBeken to Read Analog Values from SKU237545 Pressure Sensor on Wemos D1 Mini

buenogy   15 Sep 2025   (0)
ESP8266 i ESP32
15 Sep 2025 23:56

Connection of LCD IPS 0.96 ST7735S SPI to SEEED XIAO ESP32C6 - schematic and code needed

seeb   27 Aug 2025   (4)
ESP8266 i ESP32
14 Sep 2025 18:20

Triac control via ESP32 - zero detection and controller connection from AliExpress

Ikar_91   08 Sep 2025   (2)
ESP8266 i ESP32
10 Sep 2025 11:21

Arduino IDE ESP8266 SD.h - WRITE, READ, APPEND file opening modes - unclear operation

zbynio_k   30 Aug 2025   (10)
ESP8266 i ESP32
02 Sep 2025 16:12

0 Arduino RFID Musical Instrument Using RC522 and DF MP3 Module for Interactive Play

unikeyic   27 Aug 2025   (0)
Arduino
27 Aug 2025 07:51

0 ESP32-DO 56 to Robot Microcontroller R3 Wiring for LightBurn Laser, NEMA Stepper, Leadshine

gaalandrasnak   24 Aug 2025   (0)
ESP8266 i ESP32
24 Aug 2025 13:47

Identifying TX/RX Pins on EWELINK Zigbee Gateway with ESP32 and EWL-WBT04 Module

yotapaki   16 Jan 2025   (24)
ESP8266 i ESP32
13 Aug 2025 11:18

5V project power supply from AA batteries, L7805ABV and Feetech F5109M servo - schematic verificatio

Mabel123   04 Jun 2025   (22)
ESP8266 i ESP32
03 Aug 2025 13:19

WS2812B LED not working with ESP32 CP2102 on GPIO2/5/13/35 – wiring or code issue?

cototo1991   31 Jul 2025   (20)
ESP8266 i ESP32
03 Aug 2025 10:01

[Solved] NodeMCU v2 ESP8266 does not detect DS18B20 after uploading EasyESP - sensor address missing

skrobi2   13 May 2025   (5)
ESP8266 i ESP32
30 Jul 2025 11:33

Connection of ACS712 to ESP32-DevKitC (ESP-WROOM-32) - 5V power supply and ADC input

hansikkk   08 Jul 2025   (4)
ESP8266 i ESP32
12 Jul 2025 09:46

Is OpenBeken firmware compatible with ESP8266 (1MB flash) and OTA from Tasmota?

Tilator   24 May 2025   (3)
ESP8266 i ESP32
04 Jul 2025 19:50

Evaluation of the schematic of the modular CPU with ESP32 PICO D4, 5V USB power supply + battery

eee1234   07 Jun 2025   (1)
ESP8266 i ESP32
07 Jun 2025 21:38

How to Disable Level Control (pcc,7) in ESP Easy Rules for GPIO12 Relay?

sznickers   22 May 2025   (9)
ESP8266 i ESP32
25 May 2025 09:11

0 ESP32 WebSocket disconnects after 60 seconds when holding button via WebSocket control

ademba   18 May 2025   (0)
ESP8266 i ESP32
18 May 2025 20:12

ESP01, GCC, Eclipse - how do I conveniently upload extended HTML with multiple quotes?

zbynio_k   06 May 2025   (12)
ESP8266 i ESP32
09 May 2025 23:04

ESP32 unstable when using BME280 5V sensor powered at 3.3V with LED control panel

ademba   06 May 2025   (5)
ESP8266 i ESP32
07 May 2025 20:47

[Solved] How to transfer an Arduino project from ESP32 to ESP32-S3 in Visual Studio Code - board error

denis789   25 Apr 2025   (9)
ESP8266 i ESP32
04 May 2025 22:32

ESP32 WROOM-32D - Which GPIO Pins Stay LOW on Boot for Safe Relay/LED Control?

ademba   03 May 2025   (2)
ESP8266 i ESP32
04 May 2025 18:22

0 Deauther on ESP8266 with OLED display - how to connect SCL to D2, SDA to D1?

krystiankadziela2013   01 May 2025   (0)
ESP8266 i ESP32
01 May 2025 18:22

[Solved] ESP32 Vroom 30pin resets when controlling MC-25M20 relay via GPIO25

nkznkz   18 Apr 2025   (10)
ESP8266 i ESP32
23 Apr 2025 09:34

Esp32-DevKitC-VE + ArduCam OV2640: Image Interference and Resolution Issues

Mires98   04 Apr 2022   (8)
ESP8266 i ESP32
11 Apr 2025 18:19
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arduino, ESP8266, ESP32, IoT, Raspberry

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