Development platforms and single-board computers

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This section is related to development platforms/boards using frameworks/environments such as Arduino, as well as single-board computers (SBC) and extension modules - shields

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NextPCB offers free HQDFM DFM webinars for PCB designers and maker groups
magic9 27 Dec 2025 19:19 (2) Sponsored

NextPCB offers free HQDFM DFM webinars for PCB designers and maker groups Anyone who has sent Gerbers to a fab knows the feeling: you wait for the boards and hope no hidden manufacturability issue shows up. That “hope” phase...[Read more]

	Topic / Author	Views	Replies	Last post
	Rules: Instructions for posting photos and pictures on the forum gulson 28 Jul 2011 (0) Global rules 28 Jul 2011 11:59	2419853	0	28 Jul 2011 11:59 gulson
	Recommended I2C Pinout for BME280 Sensor on CBU Module: SDA/SCL Pin Numbers? qscented 01 Jan 2026 (2) Arduino 02 Jan 2026 09:48	117	2	02 Jan 2026 09:48 p.kaczmarek2
	Connection of 3.3V PIR sensor on 15-20m cable - interference, voltage drops Michal8883 16 May 2025 (7) ESP8266 i ESP32 28 Dec 2025 22:07	531	7	28 Dec 2025 22:07 Michal8883
	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	534	26	28 Dec 2025 11:43 inot
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	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	219	0	17 Dec 2025 08:08 Said
	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	168	1	16 Dec 2025 13:29 sznickers
	Smokehouse analogue thermometer for PT1000, LM358 and ESP8266 sznickers 12 Nov 2025 (52) ESP8266 i ESP32 15 Dec 2025 17:56	1212	52	15 Dec 2025 17:56 sznickers
	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	1317	10	02 Dec 2025 21:14 Heweliusz03
	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	738	15	02 Dec 2025 14:40 dawidkosciesza
	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	477	6	27 Nov 2025 10:15 sznickers
	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	360	2	25 Nov 2025 12:19 Anonymous
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	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	114	0	24 Nov 2025 00:28 Jarosław 1808
	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	576	18	22 Nov 2025 17:53 Anonymous
	Flashing OpenBK OTA on Tasmota-Flashed ESP8266: Is Serial Upload Required? erdeidominik1999 17 Nov 2025 (2) ESP8266 i ESP32 18 Nov 2025 00:29	303	2	18 Nov 2025 00:29 p.kaczmarek2
	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	147	0	14 Nov 2025 23:17 sznickers
	OpenBK Compatibility with ESP8266MOD (ESP-12F) and 4MB Flash Size Tilator 09 Nov 2025 (6) ESP8266 i ESP32 10 Nov 2025 07:14	405	6	10 Nov 2025 07:14 Tilator
	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	318	9	09 Nov 2025 20:18 inot
	[Solved] ESP32 WTH01 RJ45 Ethernet: Compatible Library for ESP Easy Firmware? sznickers 01 Nov 2025 (1) ESP8266 i ESP32 01 Nov 2025 21:17	393	1	01 Nov 2025 21:17 sznickers

	[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	768	9	15 Oct 2025 14:24 PRL
	[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	327	2	10 Oct 2025 03:44 robinn123
	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	3126	8	05 Oct 2025 16:19 Anonymous
	Gosund Nite Bird WB4 - Issues Flashing Tasmota Firmware, No Feedback domio33 04 Jan 2023 (29) ESP8266 i ESP32 03 Oct 2025 18:46	1854	29	03 Oct 2025 18:46 LeMaxime
	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	561	1	18 Sep 2025 18:16 tomekuserkomputer
	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	525	0	15 Sep 2025 23:56 buenogy
	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	690	4	14 Sep 2025 18:20 seeb
	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	549	2	10 Sep 2025 11:21 gps79
	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	678	10	02 Sep 2025 16:12 JacekCz
	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	300	0	27 Aug 2025 07:51 unikeyic
	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	327	0	24 Aug 2025 13:47 gaalandrasnak
	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	2916	24	13 Aug 2025 11:18 tepliukyurii
	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	1020	22	03 Aug 2025 13:19 LEDówki

	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	1980	20	03 Aug 2025 10:01 efi222
	[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	429	5	30 Jul 2025 11:33 skrobi2
	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	705	4	12 Jul 2025 09:46 hansikkk
	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	564	3	04 Jul 2025 19:50 insmod
	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	390	1	07 Jun 2025 21:38 inot
	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	513	9	25 May 2025 09:11 Slawek K.
	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	357	0	18 May 2025 20:12 ademba
	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	534	12	09 May 2025 23:04 miszczo997
	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	624	5	07 May 2025 20:47 Anonymous
	[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	858	9	04 May 2025 22:32 denis789
	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	1737	2	04 May 2025 18:22 Anonymous
	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	378	0	01 May 2025 18:22 krystiankadziela2013
	[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	564	10	23 Apr 2025 09:34 nkznkz
	Esp32-DevKitC-VE + ArduCam OV2640: Image Interference and Resolution Issues Mires98 04 Apr 2022 (8) ESP8266 i ESP32 11 Apr 2025 18:19	1953	8	11 Apr 2025 18:19 Anonymous
	[Solved] ESP32 stability in heat pump control and data collection - feedback? TomKomar 26 Sep 2024 (6) ESP8266 i ESP32 05 Apr 2025 14:47	921	6	05 Apr 2025 14:47 TomKomar
	How to connect W5500, RC522, reed switches to ESP32 in ESPHome (Home Assistant)? iwnuk22 01 Apr 2025 (1) ESP8266 i ESP32 02 Apr 2025 19:10	693	1	02 Apr 2025 19:10 p.kaczmarek2
	ESP32 control using Raspberry Pi Pico with touchscreen display - sensor management Michal8883 20 Oct 2022 (14) ESP8266 i ESP32 26 Mar 2025 04:42	1044	14	26 Mar 2025 04:42 mitagimi75
	ESP32 and Raspberry Pi Pico W: Which communication options to choose? Wi-Fi, UART, I²C, SPI? it011 25 Mar 2025 (2) ESP8266 i ESP32 25 Mar 2025 13:39	498	2	25 Mar 2025 13:39 Anonymous
	[Solved] Heat pump control: time and temperature conditions in Arduino code klon111 21 Mar 2025 (6) ESP8266 i ESP32 22 Mar 2025 09:50	351	6	22 Mar 2025 09:50 klon111
	ESP32: Web page with reading and writing data from the controller via I2C? margas60 16 Mar 2025 (9) ESP8266 i ESP32 21 Mar 2025 06:33	585	9	21 Mar 2025 06:33 michal.zd

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Development platforms and single-board computers

Rules: Instructions for posting photos and pictures on the forum

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

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

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

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

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

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

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

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

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