diff options
| author | Martin Oldfield <m@mjo.tc> | 2012-04-29 12:06:41 +0100 |
|---|---|---|
| committer | Martin Oldfield <m@mjo.tc> | 2012-04-29 12:06:41 +0100 |
| commit | 9c7f173c7b2b494b7ce38e313bfb2604e152f87a (patch) | |
| tree | deff8a4c84fcff08b040cb894970503a8a2e1e2b /examples/AnalogInOutSerial/AnalogInOutSerial.ino | |
| parent | 72c4fabdbad2cf04e513b49ff5763f9ca2c1c052 (diff) | |
Added monitor target and AnalogInOutSerial example
Diffstat (limited to 'examples/AnalogInOutSerial/AnalogInOutSerial.ino')
| -rw-r--r-- | examples/AnalogInOutSerial/AnalogInOutSerial.ino | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/examples/AnalogInOutSerial/AnalogInOutSerial.ino b/examples/AnalogInOutSerial/AnalogInOutSerial.ino new file mode 100644 index 0000000..e142f69 --- /dev/null +++ b/examples/AnalogInOutSerial/AnalogInOutSerial.ino @@ -0,0 +1,53 @@ +/* + Analog input, analog output, serial output + + Reads an analog input pin, maps the result to a range from 0 to 255 + and uses the result to set the pulsewidth modulation (PWM) of an output pin. + Also prints the results to the serial monitor. + + The circuit: + * potentiometer connected to analog pin 0. + Center pin of the potentiometer goes to the analog pin. + side pins of the potentiometer go to +5V and ground + * LED connected from digital pin 9 to ground + + created 29 Dec. 2008 + modified 30 Aug 2011 + by Tom Igoe + + This example code is in the public domain. + + */ + +// These constants won't change. They're used to give names +// to the pins used: +const int analogInPin = A0; // Analog input pin that the potentiometer is attached to +const int analogOutPin = 9; // Analog output pin that the LED is attached to + +int sensorValue = 0; // value read from the pot +int outputValue = 0; // value output to the PWM (analog out) + +void setup() { + // initialize serial communications at 9600 bps: + Serial.begin(9600); +} + +void loop() { + // read the analog in value: + sensorValue = analogRead(analogInPin); + // map it to the range of the analog out: + outputValue = map(sensorValue, 0, 1023, 0, 255); + // change the analog out value: + analogWrite(analogOutPin, outputValue); + + // print the results to the serial monitor: + Serial.print("sensor = " ); + Serial.print(sensorValue); + Serial.print("\t output = "); + Serial.println(outputValue); + + // wait 10 milliseconds before the next loop + // for the analog-to-digital converter to settle + // after the last reading: + delay(10); +} |
