ESP32-C3 DevKitM-01

Overview

The ESP32-C3 DevKitM-01 is Espressif's official development board for the ESP32-C3-MINI-1 module, featuring a single-core RISC-V processor at 160 MHz. The switch from Xtensa to RISC-V architecture means the ESP32-C3 is more power-efficient and benefits from the growing open-source RISC-V toolchain ecosystem, while the integration of 4 MB of Flash directly into the C3FN4 chip reduces BOM cost and PCB space for production designs.

WiFi 2.4 GHz (802.11 b/g/n) and Bluetooth Low Energy 5.0 with Mesh support are provided by the onboard radio. The PCB antenna is embedded within the MINI-1 module itself, requiring no external antenna in standard deployments. A USB-to-UART bridge provides Micro-USB programming access compatible with both Arduino IDE and ESP-IDF.

The board exposes all available GPIO pins (except the SPI Flash bus) on standard 2.54 mm headers, along with a 5 V LDO regulator, power-on LED, and an addressable RGB LED on GPIO8 for user feedback. Boot and Reset buttons follow the standard Espressif DevKit layout.

Note that CircuitPython support for the ESP32-C3 was not available at the time of initial release; Arduino (with Espressif's ESP32 Arduino core) and ESP-IDF are the primary supported toolchains.