blob: f693f117217d558ba23de189e4ff88939a71a5bb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
package main
// This example demonstrates how to use pin change interrupts.
//
// This is only an example and should not be copied directly in any serious
// circuit, because it lacks an important feature: debouncing.
// See: https://en.wikipedia.org/wiki/Switch#Contact_bounce
import (
"machine"
"time"
)
const (
button = machine.BUTTON
led = machine.LED
)
func main() {
// Configure the LED, defaulting to on (usually setting the pin to low will
// turn the LED on).
led.Configure(machine.PinConfig{Mode: machine.PinOutput})
led.Low()
// Make sure the pin is configured as a pullup to avoid floating inputs.
// Pullup works for most buttons, as most buttons short to ground when
// pressed.
button.Configure(machine.PinConfig{Mode: buttonMode})
// Set an interrupt on this pin.
err := button.SetInterrupt(buttonPinChange, func(machine.Pin) {
led.Set(!led.Get())
})
if err != nil {
println("could not configure pin interrupt:", err.Error())
}
// Make sure the program won't exit.
for {
time.Sleep(time.Hour)
}
}
|
