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test calibration

This commit is contained in:
interfisch 2021-02-18 22:28:46 +01:00
parent 6222a23042
commit 6849f8ca1c
1 changed files with 55 additions and 8 deletions
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63
src/main.cpp
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@ -11,18 +11,65 @@ HX711 scale;
void setup() { void setup() {
Serial.begin(115200); Serial.begin(115200);
scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN); scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
//calibration
Serial.println("setup");
scale.set_scale(23805); //calibrated with 2.25kg weight
delay(500);
scale.tare();
delay(2000);
Serial.println("tared. measuring...");
//after this taring put known weight on scale and get value from scale.get_units(10). then devide this value by the weight and use this number for set_scale(NUMBER)
/*
Serial.println("Before setting up the scale:");
Serial.print("read: \t\t");
Serial.println(scale.read()); // print a raw reading from the ADC
Serial.print("read average: \t\t");
Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC
Serial.print("get value: \t\t");
Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight (not set yet)
Serial.print("get units: \t\t");
Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight (not set) divided
// by the SCALE parameter (not set yet)
scale.set_scale(2280.f); // this value is obtained by calibrating the scale with known weights; see the README for details
scale.tare(); // reset the scale to 0
Serial.println("After setting up the scale:");
Serial.print("read: \t\t");
Serial.println(scale.read()); // print a raw reading from the ADC
Serial.print("read average: \t\t");
Serial.println(scale.read_average(20)); // print the average of 20 readings from the ADC
Serial.print("get value: \t\t");
Serial.println(scale.get_value(5)); // print the average of 5 readings from the ADC minus the tare weight, set with tare()
Serial.print("get units: \t\t");
Serial.println(scale.get_units(5), 1); // print the average of 5 readings from the ADC minus tare weight, divided
// by the SCALE parameter set with set_scale
Serial.println("Readings:");
*/
} }
void loop() { void loop() {
if (scale.wait_ready_retry(10)) { Serial.print("reading:\t");
long reading = scale.read(); Serial.println(scale.get_units(10));
Serial.print("HX711 reading: ");
Serial.println(reading);
} else {
Serial.println("HX711 not found.");
}
delay(1500); delay(100);
/*
scale.power_down(); // put the ADC in sleep mode
delay(5000);
scale.power_up();*/
} }