Hye there BVGer,
I know you have sold your FAP now, but i was wondering if you ever got that Dreiha heating controller working?
i have finally managed to get one myself, i've de-soldered the 2 ribbon cables from the main pcb so i have just the front panel, and i've managed to work out most of the led's connections (i can trigger each one individually except for the 2 in the 'Heat increase and decrease' buttons... i've never seen one of these controllers working in a bus, so i am unsure if they should light up when pressed or not,
I know Pulle's forum had wiring diagrams and arduino code for these controllers, but i never managed to download them before it went offline,
I can illuminate the whole panel... i have one dead surface mount led, and the backlights are in series strings and need 24 volts to light them all up.
but the switches seem to be a matrix that i haven't figured out yet,
As a last resort i can cut PCB traces and add wires directly to the led's and switches, but if someone's figured this out without having to do that, i'd love to know the details.