Questions tagged [thermistor]
An electrical resistor whose resistance is greatly reduced by heating, used for measurement and control.
3
questions
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vote
2answers
169 views
Why are my thermistor readings backward?
I'm trying to build a thermistor that will flash an LED when the temperature is above 30 C. My set-up appeared to be reporting the room temperature correctly to the Serial Monitor, but then I noticed ...
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2answers
45 views
How to include Vref in thermistor temperature calculation?
simulate this circuit – Schematic created using CircuitLab
This is the code that I'm using to get the temperature:
#define COEFF_A 0.8662984364E-03
#define COEFF_B 2.780704551E-04
#define ...
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votes
2answers
53 views
Buzzer interfere with thermistor reading
This is how i wired the thermistor and buzzer:
simulate this circuit – Schematic created using CircuitLab
And the code:
#define RT0 10000
#define B 3977
#define R 10000
float RT, VR, ln, TX, ...
