Is the Duet Wifi's ADC Self Calibrating? Yes! That was a dumb Q.
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Apparently I just can't understand language anymore…
The M305 documentation (https://duet3d.com/wiki/G-code#M305:_Set_thermistor_and_ADC_parameters) says:The ADC on the Duet WiFi and Duet Ethernet is self-calibrating, so you should not need to provide any corrections when using these controllers.
But this guide (https://duet3d.com/wiki/Connecting_thermistors#Correcting_the_temperature_calibration_of_Duet_0.6_and_0.85._boards) says:The ADC on the Duet 0.6 and 0.8.5 is not calibrated automatically, so you may need to calibrate it in order to get accurate readings, especially at low temperatures.
I'm guessing the former was written assuming no calibration was needed and the latter was written after finding out that that's not exactly true, but I'd like confirmation. -
The Duet Wifi/Ethernet are different boards (different microcontrollers, etc) than the 0.8.5 or 0.6. The former and the latter are independent statements referring to two different products.
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Man, my attention to detail has left the building - I keep forgetting the differentiator is the "Wifi", not the "Duet". Thanks.