Low thermistor temps on Maestro

Cactacae

I swapped out my DuetWifi for a Duet Maestro (using the DuetWifi for the RailCore II I'm building) and am seeing consistently lower temperature readings on the hotend and bed thermistor. At 25C room temp the Maestro reads at 9.8-10C. Same config.g, thermistors, cables, connectors and power supply. The temps seemed generally accurate before with the DuetWifi.

I've double checked that the thermistor resistance is in the 100k range and Maestro seems to ignore the M305 H parameter.

Any thing else I should be checking?

Thanks much,

Walter...

T3P3Tony

@cactacae the series resistors on the Maestro on 2.2k not 4.7k so the R parameter on M305 needs to be set to R2200.

https://duet3d.dozuki.com/Wiki/Connecting_thermistors_or_PT1000_temperature_sensors#Section_Thermistors

Cactacae

Perfect! That was it!

Thanks so much, I thought I had read the Thermistor section on the wiki thoroughly but obviously missed that.

Walter...