lorawan cleanup and optimizations:

- Remove all default loraconf default initialisation in lorawan examples (Region Settings takes care of this now)
- Remove retries while receiving JoinAccept and increase LoraRX to 10s (no need to wait more than 10s)
- Add constants for RegionSetting default frequencies
- Standardize all lora default configurations in lora examples
- Add new AT+LW=NET,(ON|OFF) command in atcmd example

examples/lora/lorawan/common/stm32wlx.go

@@ -37,22 +37,6 @@ func SetupLora() (lora.Radio, error) {
 		return nil, errRadioNotFound
 	}
 
-	loraConf := lora.Config{
-		Freq:           FREQ,
-		Bw:             lora.Bandwidth_500_0,
-		Sf:             lora.SpreadingFactor9,
-		Cr:             lora.CodingRate4_7,
-		HeaderType:     lora.HeaderExplicit,
-		Preamble:       12,
-		Ldr:            lora.LowDataRateOptimizeOff,
-		Iq:             lora.IQStandard,
-		Crc:            lora.CRCOn,
-		SyncWord:       lora.SyncPrivate,
-		LoraTxPowerDBm: 20,
-	}
-
-	loraRadio.LoraConfig(loraConf)
-
 	return loraRadio, nil
 }
 

examples/lora/lorawan/common/sx126x.go

@@ -41,22 +41,6 @@ func SetupLora() (lora.Radio, error) {
 		return nil, errRadioNotFound
 	}
 
-	loraConf := lora.Config{
-		Freq:           FREQ,
-		Bw:             lora.Bandwidth_500_0,
-		Sf:             lora.SpreadingFactor9,
-		Cr:             lora.CodingRate4_7,
-		HeaderType:     lora.HeaderExplicit,
-		Preamble:       12,
-		Ldr:            lora.LowDataRateOptimizeOff,
-		Iq:             lora.IQStandard,
-		Crc:            lora.CRCOn,
-		SyncWord:       lora.SyncPrivate,
-		LoraTxPowerDBm: 20,
-	}
-
-	loraRadio.LoraConfig(loraConf)
-
 	return loraRadio, nil
 }
 

examples/lora/lorawan/common/sx127x.go

@@ -34,22 +34,6 @@ func SetupLora() (lora.Radio, error) {
 		return nil, errRadioNotFound
 	}
 
-	// Prepare for Lora Operation
-	loraConf := lora.Config{
-		Freq:           FREQ,
-		Bw:             lora.Bandwidth_125_0,
-		Sf:             lora.SpreadingFactor9,
-		Cr:             lora.CodingRate4_7,
-		HeaderType:     lora.HeaderExplicit,
-		Preamble:       12,
-		Iq:             lora.IQStandard,
-		Crc:            lora.CRCOn,
-		SyncWord:       lora.SyncPublic,
-		LoraTxPowerDBm: 20,
-	}
-
-	loraRadio.LoraConfig(loraConf)
-
 	return loraRadio, nil
 }