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refactor pow to constant

This commit is contained in:
barbudor 2022-08-22 14:32:08 +02:00
parent 1bbec84f24
commit 4d7f78e06e
1 changed files with 7 additions and 7 deletions
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14
tasmota/tasmota_xsns_sensor/xsns_02_analog.ino
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@ -112,7 +112,7 @@
#define ANALOG_PH_DECIMAL_MULTIPLIER 100.0
// MQ-X sensor (MQ-02, MQ-03, MQ-04, MQ-05, MQ-06, MQ-07, MQ-08, MQ-09, MQ-131, MQ-135)
//
//
// A0 -------------------
// |
// GND ----------- |
@ -121,7 +121,7 @@
// | | |
// 3V3 GND ADC <- (A0 for nodemcu, wemos; GPIO34,35,36,39 and other analog IN/OUT pin for esp32)
//means mq type (ex for mq-02 use 2, mq-131 use 131)
#define ANALOG_MQ_TYPE 2
#define ANALOG_MQ_TYPE 2
//exponential regression a params
#define ANALOG_MQ_A 574.25
//exponential regression b params
@ -134,13 +134,13 @@
CO | 521853 | -3.821
Alcohol| 0.3934 | -1.504
Benzene| 4.8387 | -2.68
Hexane | 7585.3 | -2.849
Hexane | 7585.3 | -2.849
NOx | -462.43 | -2.204
CL2 | 47.209 | -1.186
O3 | 23.943 | -1.11
*/
//ratio for alarm, NOT USED yet (RS / R0 = 15 ppm)
#define ANALOG_MQ_RatioMQCleanAir 15.0
#define ANALOG_MQ_RatioMQCleanAir 15.0
// Multiplier used to store pH with 2 decimal places in a non decimal datatype
#define ANALOG_MQ_DECIMAL_MULTIPLIER 100.0
// lenght of filter
@ -387,7 +387,7 @@ void AddSampleMq(uint32_t idx){
if (Adc[idx].indexOfPointer==-1)
{
AddLog(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION "Init samples for mq-sensor"));
for (int i = 0; i < ANALOG_MQ_SAMPLES; i ++)
for (int i = 0; i < ANALOG_MQ_SAMPLES; i ++)
Adc[idx].mq_samples[i] = _adc;
}
else
@ -402,9 +402,9 @@ float AdcGetMq(uint32_t idx) {
float avg = 0.0;
float _RL = 10; //Value in KiloOhms
float _R0 = 10;
for (int i = 0; i < ANALOG_MQ_SAMPLES; i ++)
for (int i = 0; i < ANALOG_MQ_SAMPLES; i ++)
avg += Adc[idx].mq_samples[i];
float voltage = (avg / ANALOG_MQ_SAMPLES) * ANALOG_V33 / ((FastPrecisePow(2, ANALOG_RESOLUTION)) - 1);
float voltage = (avg / ANALOG_MQ_SAMPLES) * ANALOG_V33 / ANALOG_RANGE;
float _RS_Calc = ((ANALOG_V33 * _RL) / voltage) -_RL; //Get value of RS in a gas
if (_RS_Calc < 0) _RS_Calc = 0; //No negative values accepted.