[BK731T] DETA Grid Connect 10W SMART LED DOWNLIGHT DET902HA Series 2 Teardown\Guide

Device Name: DETA 10W SMART LED DOWNLIGHT - DET902HA Series 2
Device Type: LED Downlight RGBCWWW
Device Chip: WB2L - BK7231T
Device Purchased: Bunnings Warehouse - ~$52.27NZD



Flashing of Main Chip

Manually flashed the chip with BK7231 GUI Flash Tool.

Some posts for WB2L suggest you need to increase the current available for 3.3v but was able to flash with a cheap USB to TTL - UART serial adapter without this, I did remove the WB2L module from the main PCB before doing so using some solder wick then reinstalled after flashing.

Make sure you set adapter to 3.3v or use 3.3v pin (depending on adapter type)

3.3v - VCC or 3.3V on USB to TTL
GND - GND on USB to TTL
TX - RX on USB to TTL
RX - TX on USB to TTL



WB2L Module Datasheet

Configuration of Module

Pins
P26 - PWM - Channel 1
P24 - PWM - Channel 2
P6 - PWM - Channel 3
P8 - PWM - Channel 4
P7 - PWM - Channel 5

Set FLAG 12 to remember last LED state.

Config JSON

https://github.com/OpenBekenIOT/webapp/pull/113

Thank you, this makes device number 574 on our list here:
https://openbekeniot.github.io/webapp/devicesList.html

Happy to be giving something back, this forum has helped me a lot with my other beken based devices thank you!