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hydroponic-controller
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code changes for ec calibration measurements

This commit is contained in:
interfisch 2023-05-06 00:08:39 +02:00
parent 09b090f58f
commit c9303f8a96
2 changed files with 10 additions and 9 deletions
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12
include/ec.h
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@ -16,18 +16,18 @@ bool ec_flag_measurement_available=false;
#define EC_RESOLUTION 8
#define EC_FREQUENCY 5000
#define EC_CALIB_ARRAY_SIZE 64
#define EC_CALIB_ARRAY_SIZE 256
uint16_t ec_calib_array[EC_CALIB_ARRAY_SIZE];
uint16_t ec_calib_array_pos=0;
#define EC_CALIB_READ_INTERVAL 100 //interval of reading adc value inside a measurement
#define EC_CALIB_READ_INTERVAL 250 //interval of reading adc value inside a measurement
#define EC_ARRAY_SIZE 64
#define EC_ARRAY_SIZE 256
uint16_t ec_array[EC_ARRAY_SIZE];
uint16_t ec_array_pos=EC_ARRAY_SIZE;
unsigned long last_measurement_ec=0;
#define EC_MEASUREMENT_INTERVAL 10000 //complete filtered measurement every x ms
#define EC_MEASUREMENT_INTERVAL 30000 //complete filtered measurement every x ms
//One filtered measurement takes EC_READ_INTERVAL*EC_ARRAY_SIZE*4
#define EC_READ_INTERVAL 5 //interval of reading adc value inside a measurement
#define EC_READ_INTERVAL 10 //interval of reading adc value inside a measurement. one reading takes about 9-10ms
#define EC_RELAY_SWITCH_SETTLETIME 500 //time until voltage of ec circuit has settled
@ -47,7 +47,7 @@ float ec; //ec value after adjustment for reference (at current temperature)
float ec25; //ec value but temperature adjusted for 25 degC
float ec_tempadjust_alpa=0.2; //TODO
float ec_reference_adc=6011.5; //adc reference value for the calibration resistor measurement.
float ec_reference_adc=6016.88; //adc reference value for the calibration resistor measurement.
//x^0*p[0] + ... + x^n*p[n]
float ec_calibration_polynom[]={691.5992624638029,-1.4015367296761692,0.0008513503472324141,-2.2140576823179093e-07,2.8962580780180067e-11,-1.8577565383307114e-15,4.7162479484903865e-20};

7
src/main.cpp
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@ -75,7 +75,7 @@ void setup() {
//Serial.println("time,tempReservoir,ECadcCalib,ECadc,ECadcAdjusted,EC,EC25");
Serial.println("time,tempReservoir,ECadcCalib,ECadc,ECadcAdjusted");
Serial.println("time,tempReservoir,ECadcCalib,ECadc,ECadcAdjusted,sm");
}
@ -97,7 +97,7 @@ void loop() {
//flow_loop(loopmillis);
//sm_loop(loopmillis);
sm_loop(loopmillis);
static bool getReading=false;
@ -127,9 +127,10 @@ void loop() {
Serial.print(ec_calib_adc); Serial.print(",");
Serial.print(ec_adc); Serial.print(",");
Serial.print(ec_adc_adjusted); //Serial.print(",");
Serial.print(ec_adc_adjusted); Serial.print(",");
//Serial.print(ec); Serial.print(",");
//Serial.print(ec25);
Serial.print(getMean(sm_mean,SM_SIZE));