Garden Water Timer BQ05 Valve
Remove front cover of device
- Remove the plastic bezel
- Remove 3 phillips head screws to access the control board
- Solder pin header (see images)
The pin order is 3.3V,TX,RX,GND
When flashing you must power on the device whilst holding down the reset button for 3 seconds or so.
This is an ESP8265 so you must use write mode DOUT and not DIO.