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Step 11Temperature Calibration
This one is relatively easy, I used my Digital multimeter and got two readings, one from under my arm (this was after the shower!) and one at normal room temp. Yes it does look funny having two sets of wires protruding from your armpit.
Use
serial.println(thermVal1[4]);
to output values.
Average those values to get your X value, your Y value comes from the temperature reading off the digital multimeter.
Your first set of readings comes from under your arm, your second set from normal room temperature.
Once again solve th equations to get M and C
Y1 = M*X1 +C
Y2 = M*X2 +C
Update M and C values in the code:
#define TEMPERATURE_M 13.31
#define TEMPERATURE_C 188.1
Use
serial.println(thermVal1[4]);
to output values.
Average those values to get your X value, your Y value comes from the temperature reading off the digital multimeter.
Your first set of readings comes from under your arm, your second set from normal room temperature.
Once again solve th equations to get M and C
Y1 = M*X1 +C
Y2 = M*X2 +C
Update M and C values in the code:
#define TEMPERATURE_M 13.31
#define TEMPERATURE_C 188.1
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