Having got my new energy meter plugged in and working, the next obvious step was to tear it apart.
Okay, the first obvious step was to plug it into the computer (nothing much happened). Then I tore (okay, gently prised) it apart.
I won't go into the nitty gritty here because someone already beat me to it. What I will say is that all the pins were connected on the USB port (though mainly to vias and I couldn't get at the underside of the board to find out where they ended up) and that one of the unidentified chips (the SIL T630) pointed out by the good chap linked above is actually a small form factor MCU.
I'd love to write more but it's bed time and my oscilloscope's in Wales. Next step is to look for TTL level serial coming out of the data pins on the usb port. Might have to wait quite a few weeks though.
Almost forgot to mention, the heater in the bedroom used 2kW. Aren't you glad you know that?
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Did you get anything from the usb pins in the end?
ReplyDeleteYeah, I'd be interested to hear about this too!
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