|
18 | 18 | by David A Mellis |
19 | 19 | modified 30 Aug 2011 |
20 | 20 | by Tom Igoe |
| 21 | + modified 07 Apr 2017 |
| 22 | + by Zachary J. Fields |
21 | 23 | |
22 | 24 | This example code is in the public domain. |
23 | 25 | |
@@ -62,12 +64,12 @@ void loop() { |
62 | 64 | // read the sensor: |
63 | 65 | sensorValue = analogRead(sensorPin); |
64 | 66 |
|
| 67 | + // in case the sensor value is outside the range seen during calibration |
| 68 | + sensorValue = constrain(sensorValue, sensorMin, sensorMax); |
| 69 | + |
65 | 70 | // apply the calibration to the sensor reading |
66 | 71 | sensorValue = map(sensorValue, sensorMin, sensorMax, 0, 255); |
67 | 72 |
|
68 | | - // in case the sensor value is outside the range seen during calibration |
69 | | - sensorValue = constrain(sensorValue, 0, 255); |
70 | | - |
71 | 73 | // fade the LED using the calibrated value: |
72 | 74 | analogWrite(ledPin, sensorValue); |
73 | 75 | } |
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