Overview

We are hoping to flash Tasmota firmware on our Treatlife DS01C Dimmer switch.

Version 1

The initial Treatlife DS01 used a TYWE3S Chip (ESP8266):

This dimmer has an MCU connected to the TYWE3S over the RX/TX pins.

MCU: BYD - BF7612AM28T W9He

BF7612AMXXE-CN-MCU-Datasheet

Flashing

This chip is essentially an ESP8266. The ESP-12 Chip has the same pinout. 

We can desolder the TYWE3S board and flash it just like we would an ESP-12.

To flash the ESP-12, you would need to connect it up as follows:

Ground GPIO-0 and power up the chip to enter programming mode.

We will flash the chip using Tasmotizer. 

See https://github.com/tasmota/tasmotizer

Disconnect GPIO-0 from ground and toggle power to boot

Re-assemble

Version 2

A newer version uses a custom chip which is not an ESP8266

For this version we will de-solder the chip and replace it with an ESP8266 (ESP-12F)

Flashing 

We can flash the board using the same procedure outlined for version 1. However, I decided to buy a new product to make flashing easier.

Wishiot ESP8266 Burning Fixture Development Board Micro USB Port Onboard CP2102 Chip Support ESP-01S ESP-07 ESP-07S ESP-12E ESP-12F ESP-12S ESP-C2 Easy Programer

https://www.amazon.ca/dp/B08BXMGVNM?psc=1&ref=ppx_yo2ov_dt_b_product_details

Just pop your ESP-12F into the board and flash using Tasmotizer.

After flashing, solder the board back onto the board.

Finished Board with new ESP-12F chip installed.

Configuring

Configuration is the same for both versions.

https://templates.blakadder.com/treatlife_DS01.html

From the console, issue the following commands:

TuyaMCU 21,2
dimmerrange 150,1000
Rule1 on system#boot do SerialSend5 55AA00060005040400010114 endon
Rule 1 1 

All Done!

References