64 lines
1.2 KiB
HTML
64 lines
1.2 KiB
HTML
|
<h2>Strings</h2>
|
||
|
|
<pre><code>"foo \"bar\" baz"
|
||
|
|
'foo \'bar\' baz'
|
||
|
|
"Multi-line strings ending with a \
|
||
|
|
are supported too."</code></pre>
|
||
|
|
|
||
|
|
<h2>Macro statements</h2>
|
||
|
|
<pre><code>#include <Bridge.h>
|
||
|
|
#define SOME_PIN 11
|
||
|
|
</code></pre>
|
||
|
|
|
||
|
|
<h2>Booleans</h2>
|
||
|
|
<pre><code>true;
|
||
|
|
false;</code></pre>
|
||
|
|
|
||
|
|
<h2>Operators</h2>
|
||
|
|
<pre><code>a < b;
|
||
|
|
c && d;</code></pre>
|
||
|
|
|
||
|
|
<h2>Full example</h2>
|
||
|
|
<pre><code>#include <Bridge.h>
|
||
|
|
|
||
|
|
// pin of the piezo speaker
|
||
|
|
int piezo = 8;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* setups
|
||
|
|
* runs once before everyhing else
|
||
|
|
*/
|
||
|
|
void setup() {
|
||
|
|
pinMode(piezo, OUTPUT);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* loop
|
||
|
|
* this will run forever and do what we want
|
||
|
|
*/
|
||
|
|
void loop() {
|
||
|
|
playMelody(1);
|
||
|
|
delay(1000);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* playMelody
|
||
|
|
* will play a simple melody on piezo speaker
|
||
|
|
*/
|
||
|
|
void playMelody(int times) {
|
||
|
|
int melody[] = { 4699, 4699, 3520, 4699 };
|
||
|
|
int duration = 6;
|
||
|
|
|
||
|
|
for( int t = 0; t < times; t++ ) {
|
||
|
|
for( int i = 0; i < 4; i++ ) {
|
||
|
|
// pass tone to selected pin
|
||
|
|
tone(piezoPin, melody[i], 1000/duration);
|
||
|
|
|
||
|
|
// get a bit of time between the tones
|
||
|
|
delay(1000 / duration * 1.30 + 80);
|
||
|
|
|
||
|
|
// and don't forget to switch of the tone afterwards
|
||
|
|
noTone(piezoPin);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}</code></pre>
|