Assistive Keyboard — Flash firmware to your ESP32-S3 board via browser
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Bootloader Mode Instructions
Generic ESP32-S3 Dev Module
Connect the board to your computer via USB
Press and hold the BOOT button (GPIO0)
While holding BOOT, press and release the EN / RST button
Release the BOOT button
The device is now in download mode
Click Flash Firmware above and select the device in the browser serial prompt
M5Stack AtomS3
Connect the AtomS3 to your computer via USB-C
Press and hold the side button (the only button on the side)
Keep holding for 2 seconds until the green LED inside turns on
Release the button
The device is now in download mode (green LED indicates bootloader mode)
Click Flash Firmware above and select the device in the browser serial prompt
About iKeys
Wireless assistive keyboard that turns a tablet or phone into a full USB keyboard and mouse for any computer. Uses an ESP32-S3 with native USB HID — no software to install on the host.