marioys97 last edited by
Hi, I`m using two bed heaters for mi heated bed. Is it possible to make an average of the two thermistors to control both of them as one unique heated bed?
dc42 administrators last edited by
@marioys97 you can connect the two thermistors in series or in parallel to a single TEMP input and adjust the M307 T parameter to suit. Series connection biases the reading towards the cooler thermistor, while parallel connection biases it towards the hotter temperature. Series connection has the advantage that you will get an open-circuit reading if the wiring breaks anywhere.