Get started with MicroPython [C3 series]

Flash MicroPython firmware

The boards were already flashed with MicroPython firmware. If they lost the firmware or you need the latest version, you can flash MicroPython firmware by yourself.

Requirements

• Python

• esptool (to flash ESP32-C3 firmware)

pip3 install esptool

C3 Firmware

• Firmware

Flash firmware

• Put C3 boards into Device Firmware Upgrade (DFU) mode.

  • Hold Button 9

  • Press Button Reset

  • Release Button 9 when you hear the prompt tone on USB reconnection

• Flash using esptool.py

  esptool.py --port PORT_NAME erase_flash
  esptool.py --port PORT_NAME --baud 1000000 write_flash -z 0 FIRMWARE.bin
  

Note

Don’t forget to change PORT_NAME and FIRMWARE.bin.

In Linux, PORT_NAME is like /dev/ttyUSB0. In Windows, PORT_NAME is like COM4.

Quick reference

• Quick reference for the ESP32