diff options
| -rw-r--r-- | config/example-extras.cfg | 26 | ||||
| -rw-r--r-- | klippy/extras/adc_temperature.py | 19 |
2 files changed, 43 insertions, 2 deletions
diff --git a/config/example-extras.cfg b/config/example-extras.cfg index e67f7165..c1370eda 100644 --- a/config/example-extras.cfg +++ b/config/example-extras.cfg @@ -395,7 +395,7 @@ # Custom thermistors (one may define any number of sections with a -# "thermistor" prefix). A custom thermistor may be used in the +# "thermistor" prefix). A custom thermistor may be used in the # sensor_type field of a heater config section. (For example, if one # defines a "[thermistor my_thermistor]" section then one may use a # "sensor_type: my_thermistor" when defining a heater.) Be sure to @@ -410,7 +410,7 @@ #resistance3: # Three resistance measurements (in Ohms) at the given temperatures # (in Celsius). The three measurements will be used to calculate the -# Steinhart-Hart coefficients for the thermistor. These parameters +# Steinhart-Hart coefficients for the thermistor. These parameters # must be provided when using Steinhart-Hart to define the # thermistor. #beta: @@ -419,6 +419,28 @@ # provided when using "beta" to define the thermistor. +# Custom ADC temperature sensors (one may define any number of +# sections with an "adc_temperature" prefix). This allows one to +# define a custom temperature sensor that measures a voltage on an +# Analog to Digital Converter (ADC) pin and uses linear interpolation +# between a set of configured temperature/voltage measurements to +# determine the temperature. The resulting sensor can be used as a +# sensor_type in a heater section. (For example, if one defines a +# "[adc_temperature my_sensor]" section then one may use a +# "sensor_type: my_sensor" when defining a heater.) Be sure to place +# the sensor section in the config file above its first use in a +# heater section. +#[adc_temperature my_sensor] +#temperature1: +#voltage1: +#temperature2: +#voltage2: +#... +# A set of temperatures (in Celsius) and voltages (in Ohms) to use +# as reference when converting a temperature. At least two +# measurements must be provided. + + # Replicape support - see the generic-replicape.cfg file for further # details. #[replicape] diff --git a/klippy/extras/adc_temperature.py b/klippy/extras/adc_temperature.py index 4072f18f..31c1ecce 100644 --- a/klippy/extras/adc_temperature.py +++ b/klippy/extras/adc_temperature.py @@ -72,6 +72,20 @@ class Linear: gain, offset = self.slope_samples[pos] return (temp - offset) / gain +# Custom defined sensors from the config file +class CustomLinear: + def __init__(self, config): + self.name = " ".join(config.get_name().split()[1:]) + self.params = [] + for i in range(1, 1000): + t = config.getfloat("temperature%d" % (i,), None) + if t is None: + break + v = config.getfloat("voltage%d" % (i,)) + self.params.append((t, v)) + def create(self, config): + return Linear(config, self.params) + AD595 = [ (0., .0027), (10., .101), (20., .200), (25., .250), (30., .300), (40., .401), (50., .503), (60., .605), (80., .810), (100., 1.015), (120., 1.219), @@ -99,3 +113,8 @@ def load_config(config): for sensor_type, params in [("AD595", AD595), ("PT100 INA826", PT100)]: func = (lambda config, params=params: Linear(config, params)) pheater.add_sensor(sensor_type, func) + +def load_config_prefix(config): + linear = CustomLinear(config) + pheater = config.get_printer().lookup_object("heater") + pheater.add_sensor(linear.name, linear.create) |