ESP32 Versions Compared: Which Should You Buy?
Compare ESP32 versions in one chart, then choose the right chip or board for Wi-Fi, Bluetooth, Matter, Thread, Zigbee, USB, cameras and displays.
ESP32 ↔ ESP8266 I2C Communication Between Two Boards – Simple Master/Slave Example
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…
Full tutorial ESP-NOW Communication Between Two ESP32 Boards with struct_message
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.…
ESP-NOW Communication Between ESP32 Master and ESP8266 Slave Using a Custom MAC Address
(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…