From: eaman <andrea@piffa.net>
Date: Fri, 14 Oct 2016 14:15:36 +0000 (+0200)
Subject: errata
X-Git-Url: http://git.piffa.net/web?a=commitdiff_plain;h=f502e005eadf1aae8eff6c44f3669b4167e69bfb;p=sketchbook_andrea

errata
---

diff --git a/oggi/photo_5_calibration/photo_5_calibration.ino b/oggi/photo_5_calibration/photo_5_calibration.ino
deleted file mode 100644
index 1d9b4d7..0000000
--- a/oggi/photo_5_calibration/photo_5_calibration.ino
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
-  Calibration
- 
- Demonstrates one technique for calibrating sensor input.  The
- sensor readings during the first five seconds of the sketch
- execution define the minimum and maximum of expected values
- attached to the sensor pin.
- 
- The sensor minimum and maximum initial values may seem backwards.
- Initially, you set the minimum high and listen for anything 
- lower, saving it as the new minimum. Likewise, you set the
- maximum low and listen for anything higher as the new maximum.
- 
- The circuit:
- * Analog sensor (potentiometer will do) attached to analog input 0
- * LED attached from digital pin 9 to ground
- 
- created 29 Oct 2008
- By David A Mellis
- modified 30 Aug 2011
- By Tom Igoe
- 
- http://arduino.cc/en/Tutorial/Calibration
- 
- This example code is in the public domain.
- 
- */
-
-// These constants won't change:
-const int sensorPin = A0;    // pin that the sensor is attached to
-const int ledPin = 9;        // pin that the LED is attached to
-
-// variables:
-int sensorValue = 0;         // the sensor value
-int sensorMin = 1023;        // minimum sensor value
-int sensorMax = 0;           // maximum sensor value
-
-
-void setup() {
-  // turn on LED to signal the start of the calibration period:
-  pinMode(13, OUTPUT);
-  digitalWrite(13, HIGH);
-
-  // calibrate during the first five seconds 
-  while (millis() < 5000) {
-    sensorValue = analogRead(sensorPin);
-
-    // record the maximum sensor value
-    if (sensorValue > sensorMax) {
-      sensorMax = sensorValue;
-    }
-
-    // record the minimum sensor value
-    if (sensorValue < sensorMin) {
-      sensorMin = sensorValue;
-    }
-    delay(5); // Let the sensor rest a bit and stabilize
-  }
-
-  // signal the end of the calibration period
-  digitalWrite(13, LOW);
-}
-
-void loop() {
-  // read the sensor:
-  sensorValue = analogRead(sensorPin);
-
-  // apply the calibration to the sensor reading
-  sensorValue = map(sensorValue, sensorMin, sensorMax, 0, 255);
-
-  // in case the sensor value is outside the range seen during calibration
-  sensorValue = constrain(sensorValue, 0, 255);
-
-  // fade the LED using the calibrated value:
-  analogWrite(ledPin, sensorValue);
-}
-/*
-Domande:
-1. Modificare lo sketch in modo che modifichi la luminosita' di un led 
-via PWM tramite il valore letto dal sensore.
-2. Come fare per costringere la variabile dentro un intervallo stabilito?
-*/
-