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Xiaomi Smart Air Purifier 4 Lite (zhimi.airp.rmb1)
dhewg edited this page Feb 8, 2024
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- Power off the board
- Connect
GND
(black wire),TX
(yellow wire), andRX
(red wire) to your 3.3V UART TTL adapter. - Short the two pins labeled
BT
andGND
(green wires) just above the UART pins to keep the ESP32 in bootloader mode - Power on the board
- You should now be able to use your ESP flashing tool of choice, like
esptool.py
(which is already available in your ESPHome venv) - Backup the full flash contents and put it somewhere safe
- Write the initial ESPHome build
- Power off the board
- Remove the
BT
andGND
connection - Power on the board