@Menno,
I've always misinterpreted this line, mainly because I mainly read the blog entry @digits blog and not carefull enough this topic. I thought it was some OpenTherm functionality. But instead it's the functionality as described in the "iSense installatie en service handleiding" pages 25-27 chapter 6.4 "digitale ingang" Am I right? If so thank you for clearing this up.
Some more questions where did you buy that nice soic16 to dil adapter board?
What are the yellow and blue blocks? I presume a relay and a trimmer. But I don't see them in your schematic.
And I see a transistor and some passives, including the large cap. Can you shed some light on their meaning as well?
I won't ask where the headers for the leds are. Oh and compliments for the nice silkscreen on the box.
I'm working on a pump controller circuit for a quinta pro. My heating circuit is separated by a heatexchanger and therefore I've got two pumps. The optimal pump speed is also dependend on the amount of generated heat. Therefore I want to read the actual power output from the quinta and use that in the microcontroller which drives the pumps.