60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
package gpio
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import (
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"github.com/hybridgroup/gobot"
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)
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type ButtonDriver struct {
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gobot.Driver
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Active bool
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}
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func NewButtonDriver(a DigitalReader, name string, pin string) *ButtonDriver {
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b := &ButtonDriver{
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Driver: *gobot.NewDriver(
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name,
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"ButtonDriver",
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a.(gobot.AdaptorInterface),
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pin,
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),
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Active: false,
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}
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b.AddEvent("push")
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b.AddEvent("release")
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return b
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}
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func (b *ButtonDriver) adaptor() DigitalReader {
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return b.Adaptor().(DigitalReader)
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}
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func (b *ButtonDriver) Start() bool {
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state := 0
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gobot.Every(b.Interval(), func() {
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newValue := b.readState()
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if newValue != state && newValue != -1 {
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state = newValue
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b.update(newValue)
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}
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})
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return true
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}
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func (b *ButtonDriver) Halt() bool { return true }
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func (b *ButtonDriver) Init() bool { return true }
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func (b *ButtonDriver) readState() int {
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return b.adaptor().DigitalRead(b.Pin())
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}
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func (b *ButtonDriver) update(newVal int) {
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if newVal == 1 {
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b.Active = true
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gobot.Publish(b.Event("push"), newVal)
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} else {
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b.Active = false
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gobot.Publish(b.Event("release"), newVal)
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}
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}
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