Flotsam / Temp_Library

Temperature library for the full project.

Dependents:   Full-Project

Temp_Sensor.cpp@1:fc58ae197a88, 2015-12-07 (annotated)

Committer:
ptcrews
Date:
Mon Dec 07 00:06:03 2015 +0000
Revision:
1:fc58ae197a88
Parent:
0:a42f4353261f 
Added comments.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ptcrews 0:a42f4353261f 1 #include "Temp_Sensor.h"
ptcrews 0:a42f4353261f 2
ptcrews 1:fc58ae197a88 3 /* Function: read
ptcrews 1:fc58ae197a88 4 * ---------------
ptcrews 1:fc58ae197a88 5 * Reads the temperature from the AD22100K sensor.
ptcrews 1:fc58ae197a88 6 */
ptcrews 0:a42f4353261f 7 float Temp_Sensor::read() {
ptcrews 0:a42f4353261f 8 // Convert Analog-input value to temperature
ptcrews 1:fc58ae197a88 9 float voltage = (int)((temperature.read() * ADC_CONVERSION) * 1023);
ptcrews 0:a42f4353261f 10 //1023 is to scale it up to the arduino read values.
ptcrews 0:a42f4353261f 11 float temperatureValue = (voltage * 0.217226044) - 61.1111111; // conversion factor simplified.
ptcrews 0:a42f4353261f 12 printf("AI_Val: %f\n", temperatureValue);
ptcrews 0:a42f4353261f 13 return temperatureValue; // 22.5 mV / °C; Ratiometric measurement, conversion valid for 5 V!
ptcrews 0:a42f4353261f 14 }