60 lines
998 B
Go
60 lines
998 B
Go
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package hw
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import (
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"github.com/warthog618/gpiod"
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)
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const (
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pinCoolerPower = 20
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pinFanPower = 16
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pinHeaterPower = 21
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off = 0
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on = 1
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)
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type Gpio struct {
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chip *gpiod.Chip
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coolerPower *gpiod.Line
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fanPower *gpiod.Line
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heaterPower *gpiod.Line
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}
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func NewGpio() (*Gpio, error) {
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var err error
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p := &Gpio{}
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p.chip, err = gpiod.NewChip("gpiochip0", gpiod.WithConsumer("fermentord"))
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if err != nil {
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return nil, err
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}
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p.coolerPower, err = p.chip.RequestLine(pinCoolerPower, gpiod.AsOutput(1))
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if err != nil {
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return nil, err
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}
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p.fanPower, err = p.chip.RequestLine(pinFanPower, gpiod.AsOutput(1))
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if err != nil {
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return nil, err
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}
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p.heaterPower, err = p.chip.RequestLine(pinHeaterPower, gpiod.AsOutput(1))
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if err != nil {
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return nil, err
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}
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return p, nil
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}
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func (p *Gpio) Close() {
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p.coolerPower.SetValue(off)
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p.fanPower.SetValue(off)
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p.heaterPower.SetValue(off)
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p.heaterPower.Close()
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p.fanPower.Close()
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p.coolerPower.Close()
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p.chip.Close()
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}
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