wn/ThermometerPro
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hg
2014-02-20 23:33:22 +01:00
parent fea50732b3
commit bc8a9023aa
2 changed files with 56 additions and 38 deletions
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62
ThermometerPro.cpp
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@ -12,27 +12,73 @@ void setup() {
Serial.print(String("ad7190Status: ") + ad7190Status + "\n");
delay(1000);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_TEMP_SENSOR);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN4P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN4P_AINCOM);
delay(1000);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_TEMP_SENSOR);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN3P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN3P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN2P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN2P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_ZERO, AD7190_CH_AIN1P_AINCOM);
AD7190_Calibrate(AD7190_MODE_CAL_INT_FULL, AD7190_CH_AIN1P_AINCOM);
AD7190_RangeSetup(1, AD7190_CONF_GAIN_1);
}
unsigned long T() {
AD7190_RangeSetup(0, AD7190_CONF_GAIN_1);
AD7190_ChannelSelect(AD7190_CH_TEMP_SENSOR);
AD7190_ChannelSelect(AD7190_CH_AIN4P_AINCOM);
unsigned long t = AD7190_SingleConversion();
return t;
}
float pt1000(float r) {
const float PT1000_R0 = 1000.0;
const float PT1000_Coeff = 3.85e-3;
float t = (r / PT1000_R0 - 1) / PT1000_Coeff;
return t;
}
void loop() {
Serial.print("Tick\n");
unsigned long t = AD7190_TemperatureRead();
Serial.println(t);
AD7190_ChannelSelect(AD7190_CH_AIN4P_AINCOM);
unsigned long n4 = AD7190_SingleConversion();
AD7190_ChannelSelect(AD7190_CH_AIN3P_AINCOM);
unsigned long n3x = AD7190_SingleConversion();
AD7190_ChannelSelect(AD7190_CH_AIN2P_AINCOM);
unsigned long n2x = AD7190_SingleConversion();
AD7190_ChannelSelect(AD7190_CH_AIN1P_AINCOM);
unsigned long n1x = AD7190_SingleConversion();
unsigned long n_max = 0xffffff;
float r_ref = 6000.0;
float r_m4 = (((float)n4) / ((float)n_max)) * r_ref;
float t4 = pt1000(r_m4);
Serial.print(n4); Serial.print(", "); Serial.print(r_m4, 4); Serial.print(", "); Serial.println(t4, 2);
unsigned long n3 = n3x - n4;
float r_m3 = (((float)n3) / ((float)n_max)) * r_ref;
float t3 = pt1000(r_m3);
Serial.print(n3x); Serial.print(", "); Serial.print(n3); Serial.print(", "); Serial.print(r_m3, 4); Serial.print(", "); Serial.println(t3, 2);
unsigned long n2 = n2x - n3x;
float r_m2 = (((float)n2) / ((float)n_max)) * r_ref;
float t2 = pt1000(r_m2);
Serial.print(n2x); Serial.print(", "); Serial.print(n2); Serial.print(", "); Serial.print(r_m2, 4); Serial.print(", "); Serial.println(t2, 2);
unsigned long n1 = n1x - n2x;
float r_m1 = (((float)n1) / ((float)n_max)) * r_ref;
float t1 = pt1000(r_m1);
Serial.print(n1x); Serial.print(", "); Serial.print(n1); Serial.print(", "); Serial.print(r_m1, 4); Serial.print(", "); Serial.println(t1, 2);
delay(1000);
}