59 lines
1.0 KiB
Go
59 lines
1.0 KiB
Go
package fan
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// Code originally developed by sungo (https://sungo.io)
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// Distributed under the terms of the 0BSD license https://opensource.org/licenses/0BSD
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import (
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"github.com/d2r2/go-i2c"
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"github.com/d2r2/go-logger"
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)
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type Fan struct {
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conn *i2c.I2C
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}
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func init() {
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logger.ChangePackageLogLevel("i2c", logger.PanicLevel)
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}
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// From the argon python script:
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// On an rpi4, the bus should be 1
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// On any other rpi, the bus should 0
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// On all platforms, the address should be 0x1a
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func New(address uint8, bus int) (*Fan, error) {
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f := &Fan{}
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i, err := i2c.NewI2C(address, bus)
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f.conn = i
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return f, err
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}
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func (f *Fan) Bus() int {
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return f.conn.GetBus()
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}
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func (f *Fan) Addr() uint8 {
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return f.conn.GetAddr()
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}
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func (f *Fan) SafeClose() error {
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f.SetSpeed(50)
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return f.Close()
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}
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func (f *Fan) Close() error {
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return f.conn.Close()
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}
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func (f *Fan) SetSpeed(percent int) error {
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if percent > 100 {
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percent = 100
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} else if percent < 0 {
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percent = 0
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}
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_, err := f.conn.WriteBytes([]byte(string(percent)))
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return err
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}
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