ESP Modules

ESP8266: ESP8266EX

Figures here are compiled from Espressif's official datasheets, with the source linked on each page. Mistakes are possible, so if something looks off, please report it.

Specifications

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CPUXtensa L106, 1-core @ 160 MHz
SRAM / ROM— / — KB
Wi-FiWi-Fi 4
Bluetoothnone
802.15.4No
Deep sleep20 µA

Modules based on ESP8266

Software & firmware

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Notable open-source software & firmware known to run on this chip. Support evolves, so check each project for its current board support.

Smart home & IoT

  • Tasmota★ 24k

    Mature open firmware for smart switches, plugs and sensors, with web UI, MQTT and rules.

  • ESPHome★ 11k

    Describe your device in YAML and get firmware that integrates straight into Home Assistant, no C required.

  • OpenMQTTGateway★ 4.0k

    Bridges BLE, 433 MHz, IR and more to MQTT; a flexible multi-protocol IoT gateway.

SDKs & languages

  • MicroPython★ 22k

    Run Python 3 directly on the chip with an interactive REPL, great for rapid prototyping.

  • ESP8266 Arduino core★ 17k

    Arduino core for the ESP8266, the long-standing way to program the classic Wi-Fi chip.

  • NodeMCU firmware★ 7.9k

    Lua-scriptable firmware that made the ESP8266 famous; an ESP32 port is also available.

LED, display & UI

  • WLED★ 18k

    Fast, feature-rich control for addressable LED strips over Wi-Fi, with app, web UI and effects.