examples: lora atcmd minimal rx and tx

Signed-off-by: deadprogram <ron@hybridgroup.com>

examples/lora/atcmd/sx126x.go

@@ -52,7 +52,7 @@ func setupLora() (LoraRadio, error) {
 
 	loraRadio.LoraConfig(loraConf)
 
-	return loraRadio, nil	
+	return loraRadio, nil
 }
 
 // radioIntHandler will take care of radio interrupts
@@ -63,3 +63,7 @@ func radioIntHandler(intr interrupt.Interrupt) {
 func firmwareVersion() string {
 	return "sx126x"
 }
+
+func lorarx() ([]byte, error) {
+	return loraRadio.LoraRx(LORA_DEFAULT_RXTIMEOUT_MS)
+}