Calibrating a sensor;
I cant wrap my head around how this freaking thing works, so this is a calibration code for photo resistor.
sensorHigh=0;
sensorLow=1023;
while(millis<5000) {
if (sensor>sensorHigh){
sensorHigh=potVal;
}
if (sensorVal<sensorLow){
sensorLow =potVal;
}
}}
So if sensor is at 100, wouldnt both sensorLow and SensorHigh go to 100, by following the code. That Is what i think.
2 Replies
calibration for an LDR? the LDR and a fixed resistor form a voltage divider, the output voltage is dependent on the values of the divider and the light hitting the LDR. typically you'd set a reasonable
THRESHOLD value and see if the sensor output is higher or lower than that valuetaahnks