Questions tagged [thermistor]
An electrical resistor whose resistance is greatly reduced by heating, used for measurement and control.
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Arduino seems to be reading incorrect analog I/O. Am I doing something wrong?
I am using an ATTiny88 to measure temperature using a 470 ohm thermistor attached to port A3 on the Arduino.
The thermistor is attached in series with an 1870 ohm resistor connected to Vcc. At room ...
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Displaying multiple temperature outputs w/Thermistors
So I asked this question a couple days ago but did some more work with some of the coding, but I'm really stuck and need some help. I'm trying to display the temperature for each separate thermistor ...
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Having trouble reading multiple thermistors w/ Arduino 2560
I'm trying to get my code to read multiple thermistors and I can't quite seem to get it correct using my arduino 2560. The first issue is it's not reading more than the first thermistor. The next ...
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How do I create a code that lets me use an array of 10 thermistors on one arduino?
I am new to programming and am trying to create an array of 10 thermistors on one arduino. So far I have found a code for Temperature Sensor Using NTC Thermistor that is only for one thermistor. How ...
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Circuit to get highest reading value from multiple thermistors?
I need to measure temperature of 6 battery cells. I don't care much about individual cell readings, I just want to sound a buzzer as soon as at least one of the temperatures is above a certain ...
user80325
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Mesure sensor voltage by 328p and OP Amp in parallel
I am designing a circuit to measure the temperature via a thermistor via the ADC pin on a 328p and I am looking for some advice. As a failover I am also using an OP Amp as a comparator, to see whether ...
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Thermistor returns correct value on Arduino Nano, completely fails on Arduino Uno Wifi Rev 2?
I am completely baffled. When I wire the thermistor into my Nano, everything reads completely fine. Then when I switch to the Uno Wifi Rev 2, I get negative numbers -40 to -80 when I was reading 24 on ...
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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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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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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, ...
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