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soypat
32 lines
549 B
Go
32 lines
549 B
Go
//go:build tinygo
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package onewire
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import (
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"machine"
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"tinygo.org/x/drivers/internal/legacy"
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)
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// New creates a new GPIO 1-Wire connection.
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// The pin must be pulled up to the VCC via a resistor greater than 500 ohms (default 4.7k).
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func New(p machine.Pin) Device {
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isOut := false
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return Device{
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set: func(level bool) {
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if !isOut {
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legacy.ConfigurePinOut(p)
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isOut = true
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}
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p.Set(level)
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},
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get: func() (level bool) {
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if isOut {
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legacy.ConfigurePinInputPullup(p)
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isOut = false
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}
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return p.Get()
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},
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}
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}
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