[BL602] eWelink Single Wire WIFI Module 1gang 2 way RF433Mhz no neutral light switch

It will be quick description of PINs. eWelink doesn't support LAN control mode, so it is reason to upload OpenBeken firmware as described for BL602. I tested it with OpenBeken v. 1.15.591
Don't know how RF radio is working, but thout that OpenBeken doesn't support that.

Chipset: BL602
Vendor: https://vi.aliexpress.com/item/4000906907718....t_main.11.e0e81802onzuFS&gatewayAdapt=glo2vnm
Application: HomeAssistant via MQTT




Size:52*29*20mm

Pin Settings:
P3 Btn 0 0
P12 Rel 0
P20 LED_n 0

Oh wow, they've started using BL602 on this?
I still had the esp version when I bought it december last year

For the RF, you just have to pair it with any RF remote
i think you need to toggle switch twice to start pairing

Actually I don't have any RF Button for controling it, so can't try it. I supposed that it has its own radio control chip separated from BL602, you have a good point.

Yeah, similar to sonoff ifan
There's another one I spotted using tuya, so it could have cb2s on it
The form factor makes it easier to fit behind the switch compared to sonoff mini/tuya wifi mini relay module