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That is true, but I connected to a device that was already powered-up. I don't really like to power the entire device from the programming unit. So best way (as you already found out) is to power-up the device and then connect to the programming device. AND keep your fingers away from anything...

I would definitely NOT use the internal 5V supply for anything outside the STC1000! The internal transformer (PIC version) is only 1.5 Watts and with that it needs to power both the relays (running at 12V) and the microcontroller with display. The power supply in these cheap controllers is...

Thanks for the pictures! This chip is a chinese 8051 clone and is not an stm8 nor a PIC microcontroller. I have an identical version and got it by following the link Mats gave for a PIC version. So the PIC versions are probably no longer available. This clone only has chinese documentation, so...

Arctic, can you send or publish some pictures of the internal PCBs? I ordered various STC-1000 and they all had the same hardware (STM8 microcontroller). Interesting to see what you received.

I made several updates to the README, User-Manual and the source-files. Software works fine, I did a few rounds of testing. I need to do some more testing with the PID controller, but it all seems to work. If you set parameter Ts (new) to a non-zero value (e.g. 20 seconds), you get PID-control...

The code on top says '0602 05 R QC', the text on the frontpanel PCB says 'WR-032' and the text on the IC says '8S003F3P6'. It would be nice if more people can confirm that the '0602 05 R QC' label is indeed a unique identifier for this particular hardware version. Makes ordering on ebay /...

Thanks man! I was intrigued by your original modification for the STC1000. When I ordered a few units, I noticed that they had other hardware (STM8S microctrontroller). I reverse engineered it and adapted your software to the new hardware. There's still lots of testing to do, but I hope that it...