ESP Modules

ESP32-C3

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

⚑ flag an error
CPURISC-V, 1-core @ 160 MHz
SRAM / ROM400 / 384 KB
Wi-FiWi-Fi 4
BluetoothBLE 5.x
802.15.4No
Deep sleep5 µA

Modules based on ESP32-C3

Software & firmware

⚑ flag an error

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.

  • ESPresense★ 1.4k

    Turn ESP32 nodes into a room-level BLE presence-detection network for Home Assistant.

SDKs & languages

  • MicroPython★ 22k

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

  • ESP-IDF★ 18k

    Espressif's official IoT development framework (FreeRTOS-based, C/C++); the reference SDK for every modern ESP32-family chip.

  • Arduino-ESP32★ 17k

    The official Arduino core for ESP32 chips; the easiest on-ramp, built on top of ESP-IDF.

  • esp-hal (esp-rs)★ 2.0k

    Bare-metal Rust hardware-abstraction layer for Espressif chips, and the heart of the esp-rs ecosystem.

LED, display & UI

  • WLED★ 18k

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

Mesh & comms

  • Meshtastic★ 7.8k

    Long-range, off-grid LoRa mesh messaging firmware for ESP32-based radios.

Security research

  • Bruce★ 5.8k

    Predatory ESP32 firmware for offensive-security research on M5Stack and cheap-yellow-display boards.