Konstantin Chayka / Mbed 2 deprecated WeatherStation

Сбор информации о погодных условиях

Dependencies:   RF24 USBDevice mbed

Sensors/ThermometerTmp36.cpp@6:db4538895ae7, 2015-12-05 (annotated)

Committer:
pro100kot14
Date:
Sat Dec 05 16:57:30 2015 +0000
Revision:
6:db4538895ae7
Parent:
4:7cd67d988145 
Added unit testing. Test results are displayed on the device LEDs.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pro100kot14 0:1e03d2cd238f 1 #include "ThermometerTmp36.h"
pro100kot14 0:1e03d2cd238f 2
pro100kot14 0:1e03d2cd238f 3 double ThermometerTmp36::getTemperature(){
pro100kot14 6:db4538895ae7 4 return getTemperatureByAdcValue(input.read());
pro100kot14 6:db4538895ae7 5 }
pro100kot14 6:db4538895ae7 6
pro100kot14 6:db4538895ae7 7 double ThermometerTmp36::getTemperatureByAdcValue(float adcVal){
pro100kot14 0:1e03d2cd238f 8 double temp;
pro100kot14 0:1e03d2cd238f 9 double realV;
pro100kot14 0:1e03d2cd238f 10 //3.3 - ADC maximum
pro100kot14 6:db4538895ae7 11 realV = adcVal*3.3;
pro100kot14 0:1e03d2cd238f 12 //500mV - voltage in 0 degree
pro100kot14 0:1e03d2cd238f 13 //For mo information look datasheet
pro100kot14 0:1e03d2cd238f 14 //Low Voltage Temperature Sensors TMP35/TMP36/TMP37
pro100kot14 0:1e03d2cd238f 15 //Page 5 of 20, Figure 6 (Output Voltage vs. Temperature)
pro100kot14 0:1e03d2cd238f 16 temp = (realV - 0.5)*100;
pro100kot14 0:1e03d2cd238f 17 return temp;
pro100kot14 6:db4538895ae7 18 }
pro100kot14 6:db4538895ae7 19
pro100kot14 6:db4538895ae7 20 bool ThermometerTmp36Test::adcValue_0_15_is_0_degree(){
pro100kot14 6:db4538895ae7 21 return abs(ThermometerTmp36::getTemperatureByAdcValue(0.15)) < 0.5;
pro100kot14 6:db4538895ae7 22 }
pro100kot14 6:db4538895ae7 23
pro100kot14 6:db4538895ae7 24 bool ThermometerTmp36Test::adcValue_0_196_is_15_degree(){
pro100kot14 6:db4538895ae7 25 return abs(ThermometerTmp36::getTemperatureByAdcValue(0.196) - 15.0) < 0.5;
pro100kot14 6:db4538895ae7 26 }
pro100kot14 6:db4538895ae7 27
pro100kot14 6:db4538895ae7 28 bool ThermometerTmp36Test::adcValue_0_242_is_30_degree(){
pro100kot14 6:db4538895ae7 29 return abs(ThermometerTmp36::getTemperatureByAdcValue(0.242) - 30.0) < 0.5;
pro100kot14 0:1e03d2cd238f 30 }