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Update LoRaWAN_End_Device.ino

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As per my testing with Network Server of thingpark, I noticed the nwkKey and appKey must be formatted as follows for the join request to be accepted. 

I am not sure if this is the case for other network servers too. But I believe it should be because of LoRaWAN standard.
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Gamage 2023-08-18 08:48:37 +08:00 • committed by GitHub
parent 0a72d98750
commit 37ff0dfb59
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1 changed files with 4 additions and 3 deletions
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examples/LoRaWAN/LoRaWAN_End_Device/LoRaWAN_End_Device.ino
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@ -73,8 +73,9 @@ void setup() {
// select some encryption keys which will be used to secure the communication // select some encryption keys which will be used to secure the communication
// there are two of them - network key and application key // there are two of them - network key and application key
// because LoRaWAN uses AES-128, the key MUST be 16 bytes (or characters) long // because LoRaWAN uses AES-128, the key MUST be 16 bytes (or characters) long
const char nwkKey[] = "topSecretKey1234"; uint8_t nwkKey[16] = {0x74, 0x6F, 0x70, 0x53, 0x65, 0x63, 0x72, 0x65, 0x74, 0x4B, 0x65, 0x79, 0x31, 0x32, 0x33, 0x34};
const char appKey[] = "aDifferentKeyABC"; uint8_t appKey[16] = {0x61, 0x44, 0x69, 0x66, 0x66, 0x65, 0x72, 0x65, 0x6E, 0x74, 0x4B, 0x65, 0x79, 0x41, 0x42, 0x43};
// prior to LoRaWAN 1.1.0, only a single "nwkKey" is used // prior to LoRaWAN 1.1.0, only a single "nwkKey" is used
// when connecting to LoRaWAN 1.0 network, "appKey" will be disregarded // when connecting to LoRaWAN 1.0 network, "appKey" will be disregarded
@ -83,7 +84,7 @@ void setup() {
// now we can start the activation // now we can start the activation
// this can take up to 20 seconds, and requires a LoRaWAN gateway in range // this can take up to 20 seconds, and requires a LoRaWAN gateway in range
Serial.print(F("[LoRaWAN] Attempting over-the-air activation ... ")); Serial.print(F("[LoRaWAN] Attempting over-the-air activation ... "));
state = node.beginOTAA(joinEUI, devEUI, (uint8_t*)nwkKey, (uint8_t*)appKey); state = node.beginOTAA(joinEUI, devEUI, nwkKey, appKey);
if(state == RADIOLIB_ERR_NONE) { if(state == RADIOLIB_ERR_NONE) {
Serial.println(F("success!")); Serial.println(F("success!"));
} else { } else {