Kenneth: /* Minimum */

2015-03-08T17:36:22Z

Minimum

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== Pinout ==

https://www.pjrc.com/teensy/pinout.html

== Code ==

=== Minimum ===

<pre>
void setup() {
// put your setup code here, to run once
}

void loop() {
// put your main code here, to run repeatedly
}
</pre>

=== Blink ===

<pre>
int led = 11; // on board LED
void setup() {
pinMode(led, OUTPUT);
}
void loop() {
digitalWrite(led, HIGH);
delay(1000);
digitalWrite(led, LOW);
delay(1000);
}
</pre>

=== Fade LED ===

<pre>
int led = 12; // the pin that the LED is attached to
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by

void setup() {
pinMode(led, OUTPUT);
}

void loop() {
// set the brightness
analogWrite(led, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness == 0 || brightness == 255) {
fadeAmount = -fadeAmount ;
}
// wait for 30 milliseconds to see the dimming effect
delay(30);
}
</pre>

=== Combination Blink and Fade ===

<pre>
int blink_led = 11; // on board LED
int blink_counter = 0;

int fade_led = 12; // the pin that the LED is attached to
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by

void setup() {
pinMode(blink_led, OUTPUT);
pinMode(fade_led, OUTPUT);
}

void loop() {
blink_counter++;
if (blink_counter >= 60) {
blink_counter = 0;
}
if (blink_counter == 0) {
digitalWrite(blink_led, HIGH);
}
if (blink_counter == 30) {
digitalWrite(blink_led, LOW);
}

// set the brightness
analogWrite(fade_led, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness == 0 || brightness == 255) {
fadeAmount = -fadeAmount ;
}

// wait for 30 milliseconds to see the dimming effect
delay(30);
}
</pre>

=== Input ===

<pre>
int led_pin = 11; // on board LED
int switch_pin = 20; // pin for input
int switch_val = 0; // variable for input pin value

void setup() {
pinMode(led_pin, OUTPUT);
pinMode(switch_pin, INPUT);
digitalWrite(switch_pin, HIGH); // turn on pullup resistor
}

void loop() {
switch_val = digitalRead(switch_pin);
digitalWrite(led_pin, switch_val); // sets the LED to the button's value
}
</pre>

References:
* Arduino - DigitalRead - http://arduino.cc/en/Reference/digitalRead
* Arduino - DigitalPins - http://arduino.cc/en/Tutorial/DigitalPins

== Links ==
* Arduino - Software - http://arduino.cc/en/Main/Software
* Teensyduino: Download and Install Teensy support into the Arduino IDE - http://www.pjrc.com/teensy/td_download.html
* PJRC Store - http://www.pjrc.com/store/teensy.html
* Title - http://www.pjrc.com/teensy/td_usage.html
* Teensy Loader app for Windows XP - http://www.pjrc.com/teensy/loader_xp.html

== keywords ==

[[Category:Electronics]]
[[Category:Arduino]]

Arduino/Teensy - Revision history

Kenneth: /* Minimum */