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AN2017 - PSoC® 1 Temperature Measurement with Thermistor | Cypress Semiconductor

AN2017 - PSoC® 1 Temperature Measurement with Thermistor

Last Updated: 
Feb 19, 2018

AN2017 shows how to use PSoC® 1 to accurately measure temperature with a thermistor. 

The associated project measures the resistance of a thermistor to calculate its temperature using lookup tables and equations, and is also used with other PSoC 1 devices that have the required resources.

A thermistor is a temperature-sensitive resistor in which resistance varies with temperature. There are two types of thermistors: positive temperature coefficient (PTC) thermistors and negative temperature coefficient (NTC) thermistors. This application note describes the more commonly used NTC thermistors, in which resistance decreases with increase in temperature. Based on this principle, temperature is calculated by measuring the resistance.

Thermistor - Temperature Image


Example Project

Supported H/W and S/W Supported PSoC1 Devices
PSoC Designer Version H/W Kit CY8C20xxx CY8C21xxx CY8C22xxx CY8C23xxx CY8C24xxx CY8C27xxx CY8C28xxx CY8C29xxx
Yes 5.4 CY3210-PSoCEVAL1         x23A, x94 x43   x66