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Made a bool for error and high temp

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Inamr 2024-03-13 13:07:29 +01:00
parent 8e58925dd1
commit 24190f1f15
3 changed files with 257 additions and 246 deletions
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360
prosjekt.X/nbproject/configurations.xml
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@ -1,180 +1,180 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
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projectFiles="true"> projectFiles="true">
<itemPath>eeprom.h</itemPath> <itemPath>eeprom.h</itemPath>
<itemPath>themistor-temp.h</itemPath> <itemPath>themistor-temp.h</itemPath>
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displayName="Linker Files" displayName="Important Files"
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<itemPath>main.c</itemPath> projectFiles="true">
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<itemPath>Makefile</itemPath> <itemPath>thermistor-temp.c</itemPath>
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</conf> </conf>
</confs> </confs>
</configurationDescriptor> </configurationDescriptor>

78
prosjekt.X/themistor-temp.h
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@ -1,38 +1,40 @@
/* /*
* File: themistor-temp.h * File: themistor-temp.h
* Author: athamantis * Author: athamantis
* *
* Created on 08 March 2024, 11:46 * Created on 08 March 2024, 11:46
*/ */
#ifndef THEMISTOR_TEMP_H #ifndef THEMISTOR_TEMP_H
#define THEMISTOR_TEMP_H #define THEMISTOR_TEMP_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
#include <stdio.h> #include <stdbool.h>
#include <stdlib.h> #include <float.h>
#include <stdint.h> #include <stdio.h>
#include <math.h> #include <stdlib.h>
#define R_t0 10000 #include <stdint.h>
#define T_0 298.15 #include <math.h>
#define B 3950 #define R_t0 10000
#define R_1 1000 #define T_0 298.15
#define B 3950
// Takes inn messured value #define R_1 1000
// Calculates the temperature in celcius
// Returns the thermistor themperature // Takes inn messured value
float calculate_thermistor_temp(float readValue); // Calculates the temperature in celcius
// Returns the thermistor themperature
float calculate_thermistor_temp(float readValue);
bool error_message(float thermistor_temp);
#ifdef __cplusplus
}
#endif #ifdef __cplusplus
}
#endif /* THEMISTOR_TEMP_H */ #endif
#endif /* THEMISTOR_TEMP_H */

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prosjekt.X/thermistor-temp.c
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@ -1,28 +1,37 @@
#include "themistor-temp.h" #include "themistor-temp.h"
float calculate_thermistor_temp(float readValue){
float calculate_thermistor_temp(float readValue){ float R_therm;
float R_therm; float V_1;
float V_1; float ln;
float ln; float T_therm;
float T_therm; float V_therm;
float V_therm; uint8_t V_tot = 5;
uint8_t V_tot = 5; // Calculate Voltage over thermistor
// Calculate Voltage over thermistor V_therm = (V_tot/1024)*readValue;
V_therm = (V_tot/1024)*readValue;
// Voltage accross R_1
// Voltage accross R_1 V_1 = V_tot - V_therm;
V_1 = V_tot - V_therm;
// Calculate Thermistor resistanse
// Calculate Thermistor resistanse R_therm = (V_therm)/ (V_1 / R_1);
R_therm = (V_therm)/ (V_1 / R_1);
// Steinhart-Harts formula
// Steinhart-Harts formula ln = log(R_therm/R_t0);
ln = log(R_therm/R_t0); T_therm = (1/ ((ln/B) + (1/T_0)));
T_therm = (1/ ((ln/B) + (1/T_0)));
// Temperatur in celcius
// Temperatur in celcius T_therm -= 273.15;
T_therm -= 273.15;
return T_therm;
return T_therm; }
}
bool error_message(float thermistor_temp){
int high_temp = 0;
if (thermistor_temp > high_temp){
return true;
}
else {
return false;
}
}