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Removing old examples so I can copy over Tom's new ones.

This commit is contained in:
David A. Mellis
2009-07-11 00:33:27 +00:00
parent e9e928e03e
commit 8d73929f5d
21 changed files with 0 additions and 5448 deletions

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/*
* Calibration
*
* Demonstrates one techinque for calibrating sensor input. The
* sensor readings during the first five seconds of the sketch
* execution define the minimum and maximum of expected values.
*/
int sensorPin = 2;
int ledPin = 9;
int val = 0;
int sensorMin = 1023, sensorMax = 0;
void setup() {
// signal the start of the calibration period
pinMode(13, OUTPUT);
digitalWrite(13, HIGH);
// calibrate during the first five seconds
while (millis() < 5000) {
val = analogRead(sensorPin);
// record the maximum sensor value
if (val > sensorMax) {
sensorMax = val;
}
// record the minimum sensor value
if (val < sensorMin) {
sensorMin = val;
}
}
// signal the end of the calibration period
digitalWrite(13, LOW);
}
void loop() {
val = analogRead(sensorPin);
// apply the calibration to the sensor reading
val = map(val, sensorMin, sensorMax, 0, 255);
// in case the sensor value is outside the range seen during calibration
val = constrain(val, 0, 255);
analogWrite(ledPin, val);
}