here is new BIN file can download to ESP32:
flash_download_tool_3.9.3.zip (Size: 29.57 MB / Downloads: 301)
config ESP32 wifi firstly, then you can set relay controller's IP and Port in ESP32 webpage. make sure your relay controller work mode= TCP Server. if you don't want to use by TCP connection, you can set to RS232/RS485 mode, then you can begin config Tuya wifi.
flash_download_tool_3.9.3.zip (Size: 29.57 MB / Downloads: 301)
config ESP32 wifi firstly, then you can set relay controller's IP and Port in ESP32 webpage. make sure your relay controller work mode= TCP Server. if you don't want to use by TCP connection, you can set to RS232/RS485 mode, then you can begin config Tuya wifi.