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Extension of xsns analog

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This commit is contained in:
Michael Kolb 2021-01-05 14:31:13 +01:00
parent a4d6b58473
commit 1eefd27650
1 changed files with 70 additions and 0 deletions
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70
tasmota/xsns_02_analog.ino
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@ -97,6 +97,20 @@
// Press "Up" will raise ADC to ANALOG_RANGE, Press "Dn" will raise ADC to ANALOG_RANGE/2
#define ANALOG_JOYSTICK (ANALOG_RANGE / 3) +100 // Add resistor tolerance
// pH scale minimum and maximum values
#define ANALOG_PH_MAX 14.0
#define ANALOG_PH_MIN 0.0
// Default values for calibration solution with lower PH
#define ANALOG_PH_CALSOLUTION_LOW_PH 0.0
#define ANALOG_PH_CALSOLUTION_LOW_ANALOG_VALUE 0
// Default values for calibration solution with higher PH
#define ANALOG_PH_CALSOLUTION_HIGH_PH 14.0
#define ANALOG_PH_CALSOLUTION_HIGH_ANALOG_VALUE ANALOG_RANGE
// Multiplier used to store pH with 2 decimal places in a non decimal datatype
#define ANALOG_PH_DECIMAL_MULTIPLIER 100
struct {
uint8_t present = 0;
uint8_t type = 0;
@ -169,6 +183,12 @@ void AdcInitParams(uint8_t idx) {
Adc[idx].param2 = ANALOG_CT_MULTIPLIER; // (uint32_t) 100000
Adc[idx].param3 = ANALOG_CT_VOLTAGE; // (int) 10
}
else if (ADC_PH == Adc[idx].type) {
Adc[idx].param1 = ANALOG_PH_CALSOLUTION_LOW_PH * ANALOG_PH_DECIMAL_MULTIPLIER; // PH of the calibration solution 1, which is the one with the lower PH
Adc[idx].param2 = ANALOG_PH_CALSOLUTION_LOW_ANALOG_VALUE; // Reading of AnalogInput while probe is in solution 1
Adc[idx].param3 = ANALOG_PH_CALSOLUTION_HIGH_PH * ANALOG_PH_DECIMAL_MULTIPLIER; // PH of the calibration solution 2, which is the one with the higher PH
Adc[idx].param4 = ANALOG_PH_CALSOLUTION_HIGH_ANALOG_VALUE; // Reading of AnalogInput while probe is in solution 2
}
}
if ((Adcs.type != Adc[idx].type) || (0 == Adc[idx].param1) || (Adc[idx].param1 > ANALOG_RANGE)) {
if ((ADC_BUTTON == Adc[idx].type) || (ADC_BUTTON_INV == Adc[idx].type)) {
@ -211,6 +231,9 @@ void AdcInit(void) {
if (PinUsed(GPIO_ADC_JOY, i)) {
AdcAttach(Pin(GPIO_ADC_JOY, i), ADC_JOY);
}
if (PinUsed(GPIO_ADC_PH, i)) {
AdcAttach(Pin(GPIO_ADC_PH, i), ADC_PH);
}
}
for (uint32_t i = 0; i < MAX_KEYS; i++) {
if (PinUsed(GPIO_ADC_BUTTON, i)) {
@ -309,6 +332,22 @@ uint16_t AdcGetLux(uint32_t idx) {
return (uint16_t)ldrLux;
}
float AdcGetPh(uint32_t idx) {
int adc = AdcRead(Adc[idx].pin, 2);
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION "PH ADC RAW Value %d"), adc);
float y1 = Adc[idx].param1 / ANALOG_PH_DECIMAL_MULTIPLIER;
float x1 = Adc[idx].param2;
float y2 = Adc[idx].param3 / ANALOG_PH_DECIMAL_MULTIPLIER;
float x2 = Adc[idx].param4;
float m = (y2 - y1) / (x2 - x1);
float ph = m * (adc - x1) + y1;
return ph;
}
uint16_t AdcGetRange(uint32_t idx) {
// formula for calibration: value, fromLow, fromHigh, toLow, toHigh
// Example: 514, 632, 236, 0, 100
@ -510,6 +549,22 @@ void AdcShow(bool json) {
}
break;
}
case ADC_PH: {
float ph = AdcGetPh(idx);
char ph_chr[6];
dtostrfd(ph, 2, ph_chr);
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION "PHS Adc mapped sw %s"), ph_chr);
if (json) {
AdcShowContinuation(&jsonflg);
ResponseAppend_P(PSTR("\"pH%d\":%s"), idx + offset, ph_chr);
#ifdef USE_WEBSERVER
} else {
WSContentSend_PD(HTTP_SNS_PH, "", ph_chr);
#endif // USE_WEBSERVER
}
break;
}
}
}
if (jsonflg) {
@ -551,6 +606,21 @@ void CmndAdcParam(void) {
} else {
Adc[idx].param3 = (int)(CharToFloat(subStr(sub_string, XdrvMailbox.data, ",", 4)) * 10000);
}
if (ADC_PH == XdrvMailbox.payload) {
char *phLow_chr = subStr(sub_string, XdrvMailbox.data, ",", 2);
char *phHigh_chr = subStr(sub_string, XdrvMailbox.data, ",", 4);
float phLow = CharToFloat(phLow_chr);
float phHigh = CharToFloat(phHigh_chr);
Adc[idx].param1 = phLow * ANALOG_PH_DECIMAL_MULTIPLIER;
Adc[idx].param2 = strtol(subStr(sub_string, XdrvMailbox.data, ",", 3), nullptr, 10);
Adc[idx].param3 = phHigh * ANALOG_PH_DECIMAL_MULTIPLIER;
Adc[idx].param4 = strtol(subStr(sub_string, XdrvMailbox.data, ",", 5), nullptr, 10);
AddLog_P(LOG_LEVEL_INFO, PSTR(D_LOG_APPLICATION "pH probe calibrated. Low: pH %s ^= %d; High: pH %s ^= %d"), phLow_chr, Adc[idx].param2, phHigh_chr, Adc[idx].param4);
}
if (ADC_CT_POWER == XdrvMailbox.payload) {
if (((1 == Adc[idx].param1) & CT_FLAG_ENERGY_RESET) > 0) {
for (uint32_t idx = 0; idx < MAX_ADCS; idx++) {