Teardown and Flashing Process of MOES Smart Wi-Fi Infrared Controller with WB3S/BK7321T Chip

This is a teardown for the "MOES Smart Wi-Fi Infrared Controller" using a WB3S/BK7321T chip.

Brand: MOES
Chip: WB3S (BK7321T)
Vendor Link : https://www.amazon.de/-/en/gp/product/B085Y3N9KJ

Packaging



Device



PCB



Flashing

I flashed this device using tuya-cloudcutter (Docker is required for this) and the existing MOES IR SRW-001 profile.

1. Clone the tuya-cloudcutter repository.

2. Download the tuya-cloudcutter compatible OpenBeken firmware.

3. Run tuya-cloudcutter and follow its instructions.

Pin Settings

8	IRRecv
26	IRSend

MQTT
OpenBeken allows controlling the device using MQTT messages. I turn my Samsung TV on/off using the following message.

topic	cmd//IRSend
payload	SAMSUNG-707-2-1

Hey, just to be sure, try with bkWriter 1.60.
https://github.com/openshwprojects/OpenBK7231T/blob/master/bk_writer1.60.zip

Thanks for your fast answer!

In the meantime I got it working with tuya-cloudcutter (https://github.com/tuya-cloudcutter/tuya-cloudcutter) which already had a profile for my specific device (https://github.com/tuya-cloudcutter/tuya-cloudcutter.github.io/blob/master/devices/moes-ir-srw-001-infrared-universal-remote-gateway.json). The flashing process was really comfortable, since I didn't have to solder (there are no test pins and there is very little space around TX/RX on the chip).

I will try out the IR functions now and report back.

Everything seems to work great so far. I am able to control my Samsung TV by sending MQTT messages from Home Assistant. I found the pin configuration inside the mentioned tuya-cloudcutter profile (8 - IRRecv | 26 - IRSend)

Very good, remember that you can also use our scripting system to send a combination of IR codes over time (with a delay_ms function).