Wi-Fi + Bluetooth in a Tiny Package
ESP32 and ESP8266 are highly integrated microcontroller modules developed by Espressif Systems. The ESP8266 kickstarted the affordable Wi-Fi module revolution; the ESP32 extended that with dual-core processing, Bluetooth, more GPIO, capacitive touch, and built-in hall sensor — at a price point that remains remarkably low.
Both chips are compatible with the Arduino IDE and support MicroPython and ESP-IDF, making them accessible to beginners while remaining powerful enough for production IoT deployments. They are the most popular platforms for DIY home automation, wireless sensor networks, MQTT clients, and connected maker projects.
- ESP32: dual-core 240MHz, Wi-Fi + BT/BLE, 34 GPIO
- ESP8266: single-core 80/160MHz, Wi-Fi, 17 GPIO
- Arduino IDE compatible — program with familiar C++
- MicroPython support on both platforms
- Wide range of development boards: NodeMCU, WROOM, WROVER
- Ideal for IoT, home automation, and wireless sensors
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