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authorCristian Maglie <c.maglie@bug.st>2013-01-06 18:38:03 +0100
committerCristian Maglie <c.maglie@bug.st>2013-01-06 18:38:03 +0100
commitc01bc2b62f76a5d417e5ed13dcb0c047a4f67224 (patch)
tree4703fc452282756f3c40d38f9d41b1a28e0bf0f6 /libraries/Esplora/Beginners/EsploraSoundSensor
parent5f4e55a3d274838388696c3f8130b0f2dc40daf7 (diff)
Merged upcoming 1.0.4 and updated revision log
Diffstat (limited to 'libraries/Esplora/Beginners/EsploraSoundSensor')
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+/*
+ Esplora Sound Sensor
+
+ This sketch shows you how to read the microphone sensor. The microphone
+will range from 0 (total silence) to 1023 (really loud).
+ When you're using the sensor's reading (for example, to set the brightness
+ of the LED), you map the sensor's reading to a range between the minimum
+ and the maximum.
+
+ Created on 22 Dec 2012
+ by Tom Igoe
+
+ This example is in the public domain.
+ */
+
+#include <Esplora.h>
+
+void setup() {
+ // initialize the serial communication:
+ Serial.begin(9600);
+}
+
+void loop() {
+ // read the sensor into a variable:
+ int loudness = Esplora.readMicrophone();
+
+ // map the sound level to a brightness level for the LED:
+ int brightness = map(loudness, 0, 1023, 0, 255);
+ // write the brightness to the green LED:
+ Esplora.writeGreen(brightness);
+
+
+ // print the microphone levels and the LED levels (to see what's going on):
+ Serial.print("sound level: ");
+ Serial.print(loudness);
+ Serial.print(" Green brightness: ");
+ Serial.println(brightness);
+ // add a delay to keep the LED from flickering:
+ delay(10);
+}
+