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https://github.com/pybricks/pybricks-api.git
synced 2026-09-11 09:05:07 +00:00
Laurens Valk
adf8ed6b56
First pass including Image and ImageFile. Largely migrated from old ev3dev version. We can refine this for the embedded version in the next commits.
32 lines
857 B
Python
32 lines
857 B
Python
from pybricks.parameters import Port
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from pybricks.nxtdevices import VernierAdapter
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from math import log
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# Conversion formula for Surface Temperature Sensor
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def convert_raw_to_temperature(voltage):
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# Convert the raw voltage to the NTC resistance
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# according to the Vernier Adapter EV3 block.
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counts = voltage / 5000 * 4096
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ntc = 15000 * (counts) / (4130 - counts)
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# Handle log(0) safely: make sure that ntc value is positive.
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if ntc <= 0:
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ntc = 1
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# Apply Steinhart-Hart equation as given in the sensor documentation.
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K0 = 1.02119e-3
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K1 = 2.22468e-4
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K2 = 1.33342e-7
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return 1 / (K0 + K1 * log(ntc) + K2 * log(ntc) ** 3)
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# Initialize the adapter on port 1
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thermometer = VernierAdapter(Port.S1, convert_raw_to_temperature)
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# Get the measured value and print it
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temp = thermometer.value()
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print(temp)
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