Hey there,
i found some used Smartplugs, where EP2 is written on it. They worked with Smart Life / Tuya and only one had v.1.0.4, all the others have 1.0.7. I managed to flash OpenRTL87X0C via tuya-cloudcutter OTA to the 1.0.4 Plug, for the v1.0.7 ones there was no Exploit. And i had no luck in soldering those small pads.
So far i could get REL, Btn and 2 LEDs to work. But how do i find the proper Pins for PowerMeassurement?
The driver loads fine, but all the values stay at 0. I tried several combinations for BL0973CF, SEL, CF1 and also dInput CH 0 on all the other Pins, with no signal in the logs.
Am i doing something completely wrong?
There was a moment when i got some power stats, WITHOUT any pins assigned.
AI: Can you post clear photos of both sides of the PCB, especially the RTL87X0C module area and the power-measurement chip area, including any chip markings / PCB revision text?
the photos are in the post
AI: Can you confirm the exact metering IC marking on the board — is it really BL0937, BL0942, BL0973 or something else — and did you trace which pins from that chip go to the RTL87X0C GPIOs?
BL0937 is correct
no i cannot trace them since i wasn't able to solder anything.
i found some used Smartplugs, where EP2 is written on it. They worked with Smart Life / Tuya and only one had v.1.0.4, all the others have 1.0.7. I managed to flash OpenRTL87X0C via tuya-cloudcutter OTA to the 1.0.4 Plug, for the v1.0.7 ones there was no Exploit. And i had no luck in soldering those small pads.
![[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?](https://obrazki.elektroda.pl/9774246100_1785585870.jpg "[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?") | ![[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?](https://obrazki.elektroda.pl/6039153400_1785585909.jpg "[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?") | ![[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?](https://obrazki.elektroda.pl/8134911400_1785585921.jpg "[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?") | ![[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?](https://obrazki.elektroda.pl/6452002300_1785585936.jpg "[RTL87X0C] Tuya EP2 Smart Plug - how to find BL0937 power pins?") |
So far i could get REL, Btn and 2 LEDs to work. But how do i find the proper Pins for PowerMeassurement?
The driver loads fine, but all the values stay at 0. I tried several combinations for BL0973CF, SEL, CF1 and also dInput CH 0 on all the other Pins, with no signal in the logs.
Am i doing something completely wrong?
There was a moment when i got some power stats, WITHOUT any pins assigned.
{
"vendor": "Tuya",
"bDetailed": "0",
"name": "Full Device Name Here",
"model": "enter short model name here",
"chip": "RTL87X0C",
"board": "TODO",
"flags": "1024",
"keywords": [
"TODO",
"TODO",
"TODO"
],
"pins": {
"1": "Rel;1",
"12": "Btn;1",
"17": "LED_n;1",
"18": "LED_n;2"
},
"command": "startDriver BL0937",
"image": "https://obrazki.elektroda.pl/YOUR_IMAGE.jpg",
"wiki": "https://www.elektroda.com/rtvforum/topic_YOUR_TOPIC.html"
}
AI: Can you post clear photos of both sides of the PCB, especially the RTL87X0C module area and the power-measurement chip area, including any chip markings / PCB revision text?
the photos are in the post
AI: Can you confirm the exact metering IC marking on the board — is it really BL0937, BL0942, BL0973 or something else — and did you trace which pins from that chip go to the RTL87X0C GPIOs?
BL0937 is correct
no i cannot trace them since i wasn't able to solder anything.
