This guide compares ESP32 (original, ESP32-WROOM / WROVER) vs ESP32-S3, and ends with practical “choose this if…” scenarios. Espressif’s ESP32 family has exploded with variants, but for most makers and IoT projects the real question is simple: Should I use…

The ESP32-P4-EYE is one of Espressif’s newest dev kits: a tiny “camera-in-a-box” based on the ESP32-P4 SoC, with a built-in LCD, 2 MP camera, microphone, MicroSD and dual USB-C ports. It’s designed as a ready-made platform for AI vision and…

The ESP32-P4-Function-EV-Board v1.5.2 is Espressif’s flagship multimedia dev kit for the ESP32-P4: On top of that, the board carries an ESP32-C6-MINI-1 module that provides Wi-Fi 6 + Bluetooth LE connectivity. All ESP32-P4 GPIOs that Espressif exposes are routed to a…

(Safe Pins, ADC, I²C, SPI, USB, RGB LED) The ESP32-H2-DevKitM-1 is Espressif’s low-power Bluetooth LE + 802.15.4 (Zigbee/Thread/Matter) dev board based on the ESP32-H2-MINI-1/1U module. It’s basically an “ESP32 without Wi-Fi” but with full BLE + Zigbee/Matter support and 4…

This guide explains the ESP32-C6 DevKitC-1 v1.2 pinout, showing which GPIOs are safe ,which affect boot or native USB and how to pick pins for ADC, I²C, SPI, UART, and the RGB LED. The ESP32-C6-DevKitC-1 v1.2 is Espressif’s entry-level board…

(LCD, encoder, RGB LED, audio, IR, “safe” pins) The ESP32-C3-LCDkit is a small all-in-one dev board with: It’s perfect for small GUI gadgets, knobs, thermostats, timers – but many GPIOs are already “spoken for” by the LCD and other peripherals.…

(Safe pins, ADC, I²C, SPI, UART, RGB LED) The ESP32-C3-DevKitM-1 is Espressif’s tiny RISC-V dev board based on the ESP32-C3-MINI-1 / MINI-1U module – a very compact Wi-Fi + BLE module with 4 MB flash. It’s designed to plug into…

(Safe pins, ADC, I²C, SPI, UART, LED) The ESP32-C3-DevKitC-02 is Espressif’s small RISC-V dev board based on the ESP32-C3-WROOM-02 module (4 MB flash, Wi-Fi + BLE). Almost all useful GPIOs are broken out on the two headers J1 and J3.…

(Safe Pins, ADC, I²C, SPI – and why there is no touch) ESP32-C2 is the small brother in the ESP32 family: Wi-Fi 4 + BLE 5, RISC-V core at up to 120 MHz, and only 14 GPIOs – the ESP8684…

This project shows how to do a simple LoRa “Hello World” send & receive test using two TTGO LoRa32 (SX1276) boards with built-in 0.96″ SSD1306 OLED displays. We’ll configure one board as a sender, which sends a counter every second,…