Device Flasher
Flash Firmware to Your Device
This page allows you to flash custom firmware directly to your device using the Web Serial API.
⚠️ Disclaimer: ** THIS SITE IS INCOMPLETE - FOR USE FOR TESTING BY THE DEVELOPERS ONLY **
HandShake is free, open-source software provided as-is, with no warranty of any kind. It configures unmodified, manufacturer-certified hardware (Lilygo T-Watch S3 / T-Embed) that you purchase separately. Before relying on any device for communication access, test its switch response thoroughly with a professional (Occupational Therapist, Speech and Language Therapist, Technologist, experienced Carer). Report issues to matt@mattoppenheim.com
1. Select Firmware File
Choose the .bin firmware file you downloaded from Configuration.
2. Connect & Flash
Connect your device via USB and click the button below to flash firmware.
Troubleshooting
- Device not detected? Make sure your device is connected via USB and powered on.
- Flash failed? Try disconnecting and reconnecting your device.
- Issues? Check the browser console (F12) for error messages.