Recent content by TolseyClock

Update : the Arduino OpenTherm https://www.tindie.com/products/jiripraus/opentherm-gateway-arduino-shield/ worked really well. Drove a dummy 10k pot with a Futaba wired in parallel to the 10k central heating water temperature to create the demand voltage but you could belt drive the knob to...

Very useful. Liked the tip to 'pretend' to be an oil boiler. I too objected to the fast short cycles so I simply set the Wiser to OpenTherm. OK, you get a warning - but the Wiser is now on or off based on demand with no cycling. I have ordered an OpenTherm shield board for an Arduino and will...