[SM-02/BL602L20] Mini Smart Breaker RMW002 Flashing OpenBL602 on BL602L20 Flash Like Esphome
I have bought a device named Mini Smart Breaker RMW002.
BL602L20 microcontroller inside. Board SM-028.
Flash it with OpenBL602_1.17.282 from:
https://github.com/openshwprojects/OpenBK7231T_App
Working profile here:


BL602L20 microcontroller inside. Board SM-028.
Flash it with OpenBL602_1.17.282 from:
https://github.com/openshwprojects/OpenBK7231T_App
Working profile here:
Code: JSON
Comments
It's nice to see another BL602 device! It seems that supporting that platform was worth it. Thanks for the template, I will add it to our devices list. [Read more]
Got the same device from Aliexpress. Did a reverse engineering of the traces. In my version of the RMW002 the config is similar but not identical to the config described above. GPIO_3 = TglChanOnTgl GPIO_20... [Read more]
Hello, can you post a GPIO template from the Web App? [Read more]
Sure, here you go. { "vendor": "Noname", "bDetailed": "0", "name": "Mini Smart Switch", "model":... [Read more]
I'd like to buy one. Is there a guide on how to flash the firmware? Do you need to access the card? How do you open the box since the plastic seems welded? [Read more]
Yes, you have to open the device which is rather simple. It is not welded just clipped. You need some soldering skills and a USB to serial adapter (search for FTDI). You can find several guides on how... [Read more]
@array81 do you want to buy this specific BL602 device, or a generic smart relay? You can also get a BK7231 version very often. See our flashing guides: https://www.youtube.com/@elektrodacom [Read more]
On image see only RMW002. I don't know the chipset but if I understand BL602 and BK7231 works. But how flash the firmware, I Need open It? [Read more]
It is very easy to open such devices. They are not glued. There are no screws. [Read more]
Good afternoon! Is there any software protection against rattling? I have 2 devices and one of them is missing a C6 capacitor. And when I activate the 3 pin, the relay starts clicking. https://obrazki.elektroda.pl/9130445600_1699536852_thumb.jpg... [Read more]
What do you mean by rattling? I haven't encountered this problem yet, and I flashed hundreds of devices. [Read more]
I also had no C6 and there was a rattle of contacts when I turned on pin 3 in togle mode. Soldered C6 = 100nF and resistor R1 = 100k and the rattle disappeared [Read more]
I only soldered the capacitor. SMD was not available, soldered what was. https://obrazki.elektroda.pl/6739654300_1699556770_thumb.jpg https://obrazki.elektroda.pl/1802631600_1699556770_thum... [Read more]
I'd personally shorten the leads of that capacitor before soldering, shortening leads reduces the noise [Read more]
Hi, I received my RMW002 today and was able to open it without damaging it. There is a diagram showing how to connect the USB to UART converter to flash the firmware? regards [Read more]
We have the following BL602 video guides: [Read more]
Last night, I opened the device, unsoldered SM_28, loaded the firmware, resoldered SM_28, soldered the resistor and the capacitor (without actually the relay it seemed crazy), I configured the firmware,... [Read more]
I have this same model, but I couldn't get the external switch to work. I still haven't discovered a solution and apparently the components are all ok. The impressive thing is when I use a diode scale... [Read more]
@adamspaiva can you provide more information? Was it working with Tuya firmware? [Read more]