This repository describes how to flash ESPHome firmware to Xiaomi Smart LED Desk Lamp Pro in order to use it without requiring a cloud connection to some chinese servers.
The code is inspired by this work but with some adjustments:
- fixed code was not building on my ARM based macbook
- added nice fade-in/fade-out transition when turning on/off the lamp
- tuned the color calibration
- lamp was defaulting to be turned on, when plugged in (now stores state, but defaults to OFF)
Also I was missing some documentation on how to prepare the hardware, so I decided to document it here.
In order to flash the custom firmware, you first need to open up the bottom of the lamp by unscrewing 4 small screws underneath the black rubber. After opening the lamp, you need to solder 4 wires to the board in order to connect the USB-to-Serial adapter.
After soldering the wires, connect the USB Serial Adapter as follows:
| Lamp Pin | Wire | Serial Adapter |
|---|---|---|
| TX | Green | RX |
| RX | Blue | TX |
| GPIO0 | Grey | GND |
| GND | Red | GND |
In order to force the ESP32 into serial mode, make sure to pull GPIO0 to GND before booting the lamp (aka plugging it in).
In order to be able to flash, you need to create a secrets.yaml file inside the folder and add the following content to it:
wifi_ssid: "<your ssid>"
wifi_password: "<your wifi password>"esphome run lamp.yamlAnd follow the console application to flash using USB-to-Serial connection or using wireless OTA.