The ESP32-S3-DevKitC-1 is Espressif’s entry-level development board for the ESP32-S3-WROOM-1 / 1U / 2 modules – a Wi-Fi + Bluetooth LE SoC with dual-core CPU, vector instructions for AI, and plenty of GPIOs. Espressif Docs+1 This guide focuses on pinout…
The ESP32-S2-DevKitC-1 is Espressif’s entry-level development board for the ESP32-S2 – a single-core Wi-Fi microcontroller with native USB, 43 GPIOs, ADC, DAC, touch, and a rich set of peripherals. espressif.com+1 This guide focuses on pinout and GPIO selection for the…
1. ESP32 DevKit / ESP-WROOM-32 Overview The ESP32-WROOM-32 module exposes up to 32 GPIO pins, plus power, enable and boot configuration pins. These GPIOs are highly multiplexed: the same pin can often be used as digital I/O, ADC, touch, I²C,…
The ESP32 family has grown massively since the original ESP-WROOM-32 module.Today we have dozens of chips, modules, and development boards, each optimized for different use-cases—from Wi-Fi/BLE automation to AI-enabled audio processing and ultra-low-power IoT nodes. This guide provides a complete…
I²C is one of the easiest ways to send data between microcontrollers. ESP32 and ESP8266 both support hardware I²C, and you can connect them directly using just two wires: SDA and SCL and common GND. This guide shows a complete…
ESP-NOW is a fast, connectionless communication protocol developed by Espressif. It allows ESP32 boards to exchange small packets (up to 250 bytes) with extremely low latency and very little overhead — perfect for sensors, dashboards, wireless controllers, and battery-powered devices.…
(Universal method — works with any ESP8266 board) ESP-NOW is one of the fastest and most reliable ways to send data wirelessly between ESP32/ESP8266 devices.Unlike Wi-Fi or MQTT, it requires no router, no pairing, and has almost zero latency (1–3…