add debugging stuff

examples/transmitter/transmitter.go

@@ -40,16 +40,7 @@ func main() {
 		panic(err.Error())
 	}
 	dev := sx127x.NewLoRa(SX127X_SPI, SX127X_PIN_CS.Set, SX127X_PIN_RST.Set)
-	err = dev.Configure(lora.Config{
-		Bandwidth:      lora.BW125k,
-		Frequency:      lora.Freq433_0M,
-		CodingRate:     lora.CR4_5,
-		SpreadFactor:   lora.SF7,
-		HeaderType:     lora.HeaderExplicit,
-		TxPower:        0,
-		CRC:            true,
-		PreambleLength: 12,
-	})
+	err = dev.Configure(sx127x.DefaultConfig(lora.Freq433_0M))
 	if err != nil {
 		panic(err.Error())
 	}
@@ -57,7 +48,6 @@ func main() {
 	randomU32, _ := dev.RandomU32()
 	myName := fmt.Sprintf("user-%x", randomU32%0xffff)
 	println("config success; sending messages as ", myName)
-	var rx [256]byte
 	packet := []byte(myName + " says hello!")
 	for {
 		err = dev.Tx(packet)
@@ -67,13 +57,5 @@ func main() {
 			print(".")
 		}
 		time.Sleep(2 * time.Second)
-		for i := 0; i < 6; i++ {
-			n, err := dev.RxSingle(rx[:])
-			if err != nil {
-				println("rx error:", err.Error())
-				continue
-			}
-			println("got message: ", string(rx[:n]))
-		}
 	}
 }