Unique WiFi DIN Mount Circuit Breaker with ESP8285, SC92F7351 & CSE7759: In-Depth Details
Bought from here:
Link
Page screenshot:
Package contains strange circuit breaker, without automatic magnetic field coil trip mechanics. It seems to explore 8 bit MCU + bistable relay for trip. Main module is PFS-B containing ESP8285 CPU. Although there is powerfull 32 bit CPU there is additional 8 bit micro controller SC92F7351. I think this is to provide high reliability.
Energy meter is CSE7759. All this is packed in 1 unit 19 mm DIN package.
More details I'll post later when I manage to discover circuitry.
Here are the images:
Link
Page screenshot:
Package contains strange circuit breaker, without automatic magnetic field coil trip mechanics. It seems to explore 8 bit MCU + bistable relay for trip. Main module is PFS-B containing ESP8285 CPU. Although there is powerfull 32 bit CPU there is additional 8 bit micro controller SC92F7351. I think this is to provide high reliability.
Energy meter is CSE7759. All this is packed in 1 unit 19 mm DIN package.
More details I'll post later when I manage to discover circuitry.
Here are the images:
Comments
Thank you, that's a very interesting teardown. I haven't been aware about the PSF-B module, but luckily pinout is already known: https://obrazki.elektroda.pl/6716991900_1680862747_thumb.jpg Right... [Read more]
hello, anybody can identify transistors matrix in sot23-6 package, near relay socket, after some tests i have dead this transistor. thanks in advance Gintas [Read more]
The chip is BL8023F 300mA Bi-Direction Relay Driver https://obrazki.elektroda.pl/7249207200_1681305916_thumb.jpg [Read more]
Thank you, my friend. [Read more]
Hi, Can I flash it with Tasmota or other open-source software? Do I need to disable that TuyaMCU to flash PSF-B? How? Does anyone have a working configuration? Please give me any tips and hints about... [Read more]
Yes, Tasmota is a good choice for ESP-based devices. You can also use online Tasmota installer, as described here: https://www.elektroda.com/rtvforum/topic3990951.html [Read more]
What are the counter values displayed in Tasmota? Could you post some screenshots/logs please? [Read more]
https://obrazki.elektroda.pl/8394507100_1724516774_thumb.jpg [Read more]
Thanks. I am also interested in the device because of the form factor. Was the opening of the device destructive? [Read more]
I've did a more detailed teardown of a similiar (same factor) device once, also on ESP, but you will need to use google translate: Przekaźnik Tuya/Smart który pamięta harmonogram po utracie sieci Wi... [Read more]
Found this youtube video: https://www.youtube.com/watch?v=jrmQpzMRU6o Added after 19 [minutes]: Thanks. Actually what I need is a ESP device in the switchboard to connect to few ModBus... [Read more]
Rivets are used to hold two parts of an enclosure together. So dissasembling it is somewhat destructive. However, rivets can be drilled out quite easily and you can replace them with small screws afterward. ... [Read more]