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hydroponic-controller
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input ec calibration polynom

This commit is contained in:
interfisch 2023-05-06 00:53:32 +02:00
parent c9303f8a96
commit 520f5bcfd4
2 changed files with 5 additions and 3 deletions
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5
include/ec.h
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@ -50,8 +50,9 @@ float ec_tempadjust_alpa=0.2; //TODO
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};
float ec_calibration_linearize_below_adc=6000; //use linear approximation below this adc value
//float ec_calibration_polynom[]={691.5992624638029,-1.4015367296761692,0.0008513503472324141,-2.2140576823179093e-07,2.8962580780180067e-11,-1.8577565383307114e-15,4.7162479484903865e-20};
float ec_calibration_polynom[]={1033.928052655456,-3.8909104921922895,0.005627541436014758,-4.103988840997024e-06,1.7231981870816133e-09,-4.433707707721975e-13,7.203892111369395e-17,-7.406549810844244e-21,4.667420606439905e-25,-1.6439457516812463e-29,2.477292190335455e-34};
float ec_calibration_linearize_below_adc=0; //use linear approximation below this adc value. 0=disable
float ec_calibration_linear_lowADC=830; //x0
float ec_calibration_linear_lowEC=0; //y0

3
src/main.cpp
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@ -64,7 +64,7 @@ void setup() {
//Test adc to ec function output
/*
Serial.println();
for (int i=830;i<13300;i+=100) {
for (int i=750;i<14183;i+=100) {
float _ec=ec_getECfromADC(i);
Serial.print(i); Serial.print(","); Serial.print(_ec); Serial.println();
}
@ -72,6 +72,7 @@ void setup() {
delay(100000);
*/
//Serial.println("time,tempReservoir,ECadcCalib,ECadc,ECadcAdjusted,EC,EC25");