Man this stuff is frustrating.
Ok, I want to set up an IR receiver that will calibrate to the environment... ( check to see how much ir light is in the environment) and then set that as the new zero level, so if the other IR receiver receives a little more ir light than that new zero ( threshold), then an led will turn on. To test this, I simply have 2 of the exact same infrared receivers hooked up the exact same way with the exact same resistors to analog 0 and 5 on the arduino. The 2 receivers are not more than 1 inch apart and are at the same level vertically. The problem is they are receiving vastly different ir values?? why?
here is the code and the resulting values.....
int Calibration;
int Receiver;
void setup()
{
int Receiver = analogRead(A5);
int Calibration = analogRead(A0);
Serial.begin(9600);
Serial.println("Calibration Input = ");
Serial.println(Calibration);
delay(1000);
Serial.println("Receiver Input = ");
Serial.println(Receiver);
}
void loop()
{}
here are the values..
Calibration Input =
133
Receiver Input =
359
Calibration Input =
141
Receiver Input =
377...
HOW COULD THEY BE SO DIFFERENT?