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Overview
We are hoping to flash Tasmota firmware on our Treatlife DS01C Dimmer switch.
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BF7612AMXXE-CN-MCU-Datasheet
Flashing Notes from Net
It seems that some people have had luck flashing by:
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- Cutting the RX/TX lines on the MCU board and flashing with the above connections.
- Disabling the MCU (disable the chip using it's NRST/RST (Reset) pin if available) and flashing
- Desoldering the TYWE3S board and flashing
Flashing - Disabling the MCU
To boot the TYWE3S in flashing mode, GPIO0 needs to be connected to GND while powering up. It can be left grounded for the entire process. Flashing a TYWE3S connected to a MCU is a bit trickier than one without MCU. This is due the same Rx Tx pins used by MCU and serial programmer for flashing. The TYWE3S cannot be booted to flash mode with MCU sending data over the same pins. To be able to do that, we need to disable MCU from sending data over Rx and Tx pins. There are few ways to do it:
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From the above picture, it appears that the MCU differs from the one in the Treatlife DS01C.
Cutting the Rx/TX pin on MCU
Cutting the RX/TX pins on the MCU was reported to help with flashing the TYWE3S chip without desoldering.
Pictures
Tracing
Flashing
This chip is essentially an ESP8266. The ESP-12 Chip has the same pinout.
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Disconnect GPIO-0 and toggle power to configure
Re-assemble
Configuring
https://templates.blakadder.com/treatlife_DS01.html
References
| Reference | URL |
|---|---|
| Tasmota - Tuya MCU Devices | https://tasmota.github.io/docs/TuyaMCU-Devices/ |
| Tasmota - TuyaMCU | https://tasmota.github.io/docs/TuyaMCU/ |
| Tasmota - TuyaMCU Protocol | https://tasmota.github.io/docs/TuyaMCU/#tuya-protocols |
| Tasmota Rules | https://tasmota.github.io/docs/Rules/ |
Trying to flash tasmota on TYWE3S #5377 | https://github.com/arendst/Tasmota/issues/5377 |
| Configuring Tasmota on DS01 | https://templates.blakadder.com/treatlife_DS01.html |
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