51 lines
937 B
Go
51 lines
937 B
Go
package utils
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import (
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"time"
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"github.com/argandas/serial"
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"go.uber.org/zap"
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)
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var (
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device string
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baudrate int
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// port *serial.Port
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sp *serial.SerialPort
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portOpened = false
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Log *zap.Logger
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)
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const readDuration = 500 * time.Millisecond
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// OpenPort open serial port
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func OpenPort(device string, baudrate int) error {
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Log.Info("opening serial device ",
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zap.String("port", device),
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zap.Int("baudrate", baudrate))
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sp = serial.New()
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sp.EOL('\r')
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sp.Verbose = false
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err := sp.Open(device, baudrate, time.Second*3)
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Log.Info("open ", zap.String("device", device), zap.Error(err))
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if err == nil {
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portOpened = true
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}
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return err
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}
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//ReadPort read byte array from port
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func ReadPort() (string, error) {
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// buffer := make([]byte, 1)
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// if !ServerRunning {
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// return buffer, 0
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// }
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return sp.ReadLine()
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}
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//IsPortOpen check serial port status
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func IsPortOpen() bool {
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return portOpened
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}
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