Add new commands.

devices/geiger/geiger.go

@@ -34,7 +34,10 @@ type Counter interface {
 	GetConfiguration()
 	SetConfiguration()
 	ResetConfiguration()
-	SetTime(t time.Time)
+	SetTime(time.Time)
+	GetTime() (time.Time, error)
+	FactoryReset()
+	Reboot()
 }
 
 // Config contain the configuration for a Geiger Counter

devices/geiger/gqgmc.go

@@ -114,6 +114,9 @@ const (
 	cmdTurnOnCPS    = "<HEARTBEAT1>>"
 	cmdTurnOffCPS   = "<HEARTBEAT0>>"
 	cmdTurnOffPwr   = "<POWEROFF>>"
+	cmdFactoryReset = "<FACTORYRESET>>"
+	cmdReboot       = "<REBOOT>>"
+	cmdGetTime      = "<GETDATETIME>>"
 )
 
 // GQGMCCounter is a GQ GMC Counter
@@ -275,6 +278,9 @@ func (gc *GQGMCCounter) ResetConfiguration() {
 
 // SetTime sets the time
 func (gc *GQGMCCounter) SetTime(t time.Time) {
+	//command: <SETDATETIME[YYMMDDHHMMSS]>>
+	//Firmware supported: GMC-280, GMC-300 Re.3.00 or later
+
 	cmd := make([]byte, 13)
 	var timeCmds = []struct {
 		cmd  string
@@ -297,6 +303,29 @@ func (gc *GQGMCCounter) SetTime(t time.Time) {
 	}
 }
 
+// GetTime gets the time
+func (gc *GQGMCCounter) GetTime() (time.Time, error) {
+	b, err := gc.communicate(cmdGetTime, 7)
+	if err != nil {
+		return time.Unix(0, 0), err
+	}
+	t := time.Date(int(b[0])+2000, time.Month(b[1]), int(b[2]),
+		int(b[3]), int(b[4]), int(b[5]), 0, nil)
+	return t, nil
+}
+
+// FactoryReset does a factory reset
+func (gc *GQGMCCounter) FactoryReset() {
+	gc.sendCmd(cmdFactoryReset)
+	return
+}
+
+// Reboot reboots the device
+func (gc *GQGMCCounter) Reboot() {
+	gc.sendCmd(cmdReboot)
+	return
+}
+
 func (gc *GQGMCCounter) communicate(cmd string, length uint32) ([]byte, error) {
 	gc.Clear()
 	if len(cmd) > 0 {