I had previously bought a set of these around 2020 because they contained an ESP-12F with Tasmota support. later I bought some more, but they changed the chip used in them. Thankfully I've found people have been making a similar firmware for this board as well. There's no guide for this particular device however, but I can use this as an opportunity to contribute something!
I had only used tuya-convert before, so this was a bit of a learning curve, but actually doing the modification was not difficult once you've figured it out. once i'd done one of them, the rest took less than 5 minutes each.
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Here's what i ended up doing for most of them. initially I soldered all four wires (VCC/GND/TX/RX), but later I used cheap probes for the power (could do wire wrapping instead), and just held the TX/RX by hand (no soldering!). Using a clone Arduino UNO held in reset in place of a USB to TTL serial adapter. I used the BK7231 Easy UART Flasher tool, running it under linux using mono. A baud rate of 460800 was consistent for me. I simply held the serial wires in place, clicked the read/write button in the flasher tool, then plugged in the VCC pin to the Arduino.
Here's some photos of the boards:
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Configuration:
Pins;
"pins": {
"1": "LED_n;2;0",
"6": "Rel;1;0",
"7": "Rel;2;0",
"8": "BL0937CF1;1;0",
"9": "BL0937CF;2;0",
"11": "Btn;1;1",
"14": "Btn;2;2",
"24": "BL0937SEL;2",
"26": "LED_n;1"
},Note: original firmware had the LEDs red when on and blue when off. I don't find this natural, so I've swapped this behaviour. If you prefer the original behaviour, use "LED" instead of "LED_n".
Under "Configure Startup", I set both channels to "-1" so it would remember switch state upon power loss.
Under "Configure General/Flags", I set "Flag 6 - [BTN] Instant touch reaction instead of waiting for release (aka SetOption 13)". otherwise touch buttons will only be on when held.
AI: Just to clarify, are you looking for help with anything specific regarding flashing or configuring the MG-AUWF01 sockets, or are you mainly sharing your experience for others?
Sharing how to get OpenBeken installed and configured on it.
AI: Did you run into any issues or unexpected behavior during the flashing or setup process that you’d like advice on?
A general explanation of how to configure OpenBeken for a new device would be nice. I spent some time figuring out how the pin numbers in OpenBeken correlated with the board I have, before realising the pin numbers are for the Beken chip itself, so I basically had to ignore them and use the names for the pins only (except pin 14 which was just pin 14). I also didn't learn OpenBeken had tools to detect and test pins within its' UI before I had already worked it out by tracing/beeping out each pin with a multimetre
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