47 lines
794 B
Go
47 lines
794 B
Go
package relay
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import (
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"bufio"
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"fmt"
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"go.bug.st/serial"
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"io"
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)
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type Device struct {
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port serial.Port
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}
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func (r *Device) Close() error {
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return r.port.Close()
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}
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func (r *Device) On(num int) error {
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_, err := io.WriteString(r.port, fmt.Sprintf("AT+OUT%v+1=ON\r\n", num))
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return err
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}
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func (r *Device) Off(num int) error {
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_, err := io.WriteString(r.port, fmt.Sprintf("AT+OUT%v+1=OFF\r\n", num))
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return err
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}
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func New(portName string, reader func(msg string)) (*Device, error) {
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port, err := serial.Open(portName, &serial.Mode{
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BaudRate: 9600,
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DataBits: 8,
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})
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if err != nil {
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return nil, err
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}
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go func() {
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for {
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r := bufio.NewReader(port)
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line, _, _ := r.ReadLine()
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if reader != nil {
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reader(string(line))
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}
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}
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}()
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return &Device{port: port}, nil
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}
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