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temperature_mcu: Add enhanced support for monitoring mcu temperature

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Add a "temperature_mcu" tool that can monitor builtin micro-controller
temperature sensors.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor 2020-12-10 00:15:19 -05:00
parent 39a04eac5f
commit a1baefc2c2
3 changed files with 172 additions and 1 deletions
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34
docs/Config_Reference.md
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@ -2082,6 +2082,40 @@ sensor_type: lm75
# 0.5.
```
## Builtin micro-controller temperature sensor
The atsam, atsamd, and stm32 micro-controllers contain an internal
temperature sensor. One can use the "temperature_mcu" sensor to
monitor these temperatures.
```
sensor_type: temperature_mcu
#sensor_mcu: mcu
# The micro-controller to read from. The default is "mcu".
#sensor_temperature1:
#sensor_adc1:
# Specify the above two parameters (a temperature in Celsius and an
# ADC value as a float between 0.0 and 1.0) to calibrate the
# micro-controller temperature. This may improve the reported
# temperature accuracy on some chips. A typical way to obtain this
# calibration information is to completely remove power from the
# printer for a few hours (to ensure it is at the ambient
# temperature), then power it up and use the QUERY_ADC command to
# obtain an ADC measurement. Use some other temperature sensor on
# the printer to find the corresponding ambient temperature. The
# default is to use the factory calibration data on the
# micro-controller (if applicable) or the nominal values from the
# micro-controller specification.
#sensor_temperature2:
#sensor_adc2:
# If sensor_temperature1/sensor_adc1 is specified then one may also
# specify sensor_temperature2/sensor_adc2 calibration data. Doing so
# may provide calibrated "temperature slope" information. The
# default is to use the factory calibration data on the
# micro-controller (if applicable) or the nominal values from the
# micro-controller specification.
```
## RPi temperature sensor
CPU temperature from the Raspberry Pi running the host software.