🎛️ Mod1 Firmware Flasher

Flash firmware directly to your Arduino Nano via USB.

⚠️ Browser Compatibility: This tool requires Chrome or Edge browser (Chromium-based) with Web Serial API support. It won't work in Firefox or Safari.

Select Firmware

Firmwares by Robert Heel for mod1 module by Hagiwo.

Instructions

  1. Select a firmware from the dropdown above
  2. Connect your Arduino Nano via USB
  3. Click the appropriate flash button:
    • New Bootloader (purple) - For genuine Arduino Nanos or recent boards
    • Old Bootloader (green) - For most Nano clones
  4. Select your Arduino from the browser popup
  5. Wait for upload to complete (usually 10-30 seconds)

💡 Tip: If you're not sure which bootloader you have, try the Old Bootloader button first - it's more common on clone boards!