wn/ModbusThermometer
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calibration working, needs refactoring

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hg
2014-11-21 08:22:02 +01:00
parent 752eb18691
commit c6546525d1
1 changed files with 22 additions and 8 deletions
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24
ModbusThermometer.cpp
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@ -41,8 +41,8 @@ uint32_t uptimeSeconds = 0;
typedef enum { e_CAL_IDLE, e_CAL_RUNNING, e_CAL_SET, e_CAL_COMPLETE } tCalibrationState;
bool calibrationOffsetEnabled = false;
bool calibrationFactorEnabled = false;
bool calibrationOffsetEnable = false;
bool calibrationFactorEnable = false;
tCalibrationState calibrationState = e_CAL_IDLE;
uint16_t calibrationCycleCnt = 0;
float calibrationValueSum[NUM_OF_CHANNELS];
@ -142,6 +142,13 @@ void loop() {
if (secondTick.check() == 1) {
if (calibrationOffsetEnable || calibrationFactorEnable) {
for (uint8_t i = 0; i < NUM_OF_CHANNELS; i++) {
Serial << "Last measurement: Offset: " << ads1210[i].getCalOffset() << ", Factor: " << ads1210[i].getCalFactor();
Serial << ", R_Raw: " << ads1210[i].getRRaw() << ", R: " << ads1210[i].getR() << endl;
}
}
if ((calibrationOffsetEnable || calibrationFactorEnable) &&
(calibrationState != e_CAL_COMPLETE)) {
Serial << "Calibration enabled" << endl;
@ -152,19 +159,24 @@ void loop() {
case e_CAL_IDLE:
Serial << "Calibration state idle" << endl;
for (uint8_t i = 0; i < NUM_OF_CHANNELS; i++) {
if (calibrationOffsetEnable) {
ads1210[i].setCalOffset(0.0);
ads1210[i].setCalFactor(1.0);
}
if (calibrationFactorEnable) {
ads1210[i].setCalFactor(1.0);
}
}
calibrationState = e_CAL_RUNNING;
break;
case e_CAL_RUNNING:
Serial << "Calibration state running" << endl;
calibrationCycleCnt++;
Serial << " Cnt: " << calibrationCycleCnt++ << endl;
Serial << " Cnt: " << calibrationCycleCnt << endl;
for (uint8_t i = 0; i < NUM_OF_CHANNELS; i++) {
float r = ads1210[i].getR();
calibrationValueSum[i] += r;
Serial << " Channel: " << i << ", r: " << r << endl;
Serial << " Channel: " << i << ", r: " << r << ", Sum: " << calibrationValueSum[i] << endl;
}
if (calibrationCycleCnt >= CALIBRATION_CYCLES) {
calibrationState = e_CAL_SET;
@ -177,6 +189,7 @@ void loop() {
// for offset calibration, the terminals needs to be shorten
// offset calibration needs to be performed first
for (uint8_t i = 0; i < NUM_OF_CHANNELS; i++) {
Serial << "Sum: " << calibrationValueSum[i] << ", Cnt: " << (float)calibrationCycleCnt << endl;
float offset = calibrationValueSum[i] / ((float)calibrationCycleCnt);
ads1210[i].setCalOffset(offset);
Serial << "Setting offset, Channel: " << i << ", Offset: " << offset << endl;
@ -186,6 +199,7 @@ void loop() {
// for factor calibration, a 1000R resistor needs to be connected
// to the terminals
for (uint8_t i = 0; i < NUM_OF_CHANNELS; i++) {
Serial << "Sum: " << calibrationValueSum[i] << ", Cnt: " << (float)calibrationCycleCnt << endl;
float factor = 1000.0 / (calibrationValueSum[i] / ((float)calibrationCycleCnt));
ads1210[i].setCalFactor(factor);
Serial << "Setting factor, Channel: " << i << ", Factor: " << factor << endl;
@ -206,7 +220,7 @@ void loop() {
modbusHoldingRegisters.uptimeSeconds.in = uptimeSeconds;
}
if (! (calibrationOffsetEnable || calibrationFactorEnable)) {
if (! (calibrationOffsetEnable || calibrationFactorEnable)) {
modbus_update();
}
}