How to flash T-RelayS3 (6 relays) with Tasmota

[SimonFili]

I managed to flash Tasmota on this Lilygo device, here are the steps.

1. I connected a USB to TTL directly on the TX/RX/GND pin on the Lilygo relay board

• I'm not using the T-U2T adapter

2. Power-up the device while pressing the boot button

• Better here to have a good power supply connected to the DC input

3. go to : https://tasmota.github.io/install/

4. In the drop-down, choose : Tasmota32-S3 (QIO Flash/OPI PSRAM)

5. Connect to the USB port of your USB to TTL

6. Flash (erase if needed)

• Here you should be able to connect to the Wi-Fi hotspot and configure the wifi and connect to it

7. Then you need to compile with using those instructions : Compiling Tasmota for ESP32 using Gitpod arendst/Tasmota#18745

8. Add those line to user_config_override.h
   #define USE_SHIFT595
   #define USE_RTC_CHIPS
   #define USE_DS3231
   #define USE_RTC_ADDR 0x51

9. Upload the new firmware with the Tasmota web interface

10. With the updated Firmware, you need to add a new template and apply it
    Go copy it from https://templates.blakadder.com/lilygo_T-Relay-S3.html

11. You should now have a fully functional T-RelayS3 with Tasmota