I’ve recently purchased the RAK831 + Raspberry Pi kit and setup it up as a gateway using this git: [https://github.com/RAKWireless/RAK2245-RAK831-LoRaGateway-RPi-Raspbian-OS](http://RAK831 Setup). The gateway appears to be operating correctly b/c I can see it connected to thethingsnetwork. The gateway is running in the US so it’s freq is set to 915Mhz. So far so good.
I also purchased the Adafruit Lora Feather M0 and configured it using their tutorial: [https://learn.adafruit.com/the-things-network-for-feather](http://Adafruit Feather M0). As part of the process I setup an application/device on the thethignsnetwork and copied all of the keys. The issue I am having is that the gateway both on the pi and thethingsnetwork indicate that the feather/node is broadcasting and trying to make a join. But the application/device side of thethingsnetwork never see any data. In addition the feather’s serial port data shows continuous TXSTART and then JOIN_FAILED. Has anyone had this issue and know how to fix it?
Here is my Arduino code:
’’’
static const u1_t PROGMEM APPEUI[8] = { 0x77, 0xCB, 0x01, 0xD0, 0x7E, 0xD5, 0xB3, 0x70 };
void os_getArtEui (u1_t* buf) { memcpy_P(buf, APPEUI, 8);}
// This should also be in little endian format, see above.
static const u1_t PROGMEM DEVEUI[8] = { 0xA6, 0x89, 0x5F, 0xA2, 0x42, 0x57, 0x3E, 0x00 };
void os_getDevEui (u1_t* buf) { memcpy_P(buf, DEVEUI, 8);}
// This key should be in big endian format (or, since it is not really a
// number but a block of memory, endianness does not really apply). In
// practice, a key taken from the TTN console can be copied as-is.
static const u1_t PROGMEM APPKEY[16] = { 0xA6, 0x86, 0xB1, 0xD0, 0x55, 0x0C, 0x34, 0x6E, 0x56, 0x09, 0x67, 0xCE, 0x6E, 0x31, 0xE7, 0xC2 };
void os_getDevKey (u1_t* buf) { memcpy_P(buf, APPKEY, 16);}
static uint8_t mydata[] = "H";
static osjob_t sendjob;
// Schedule TX every this many seconds (might become longer due to duty
// cycle limitations).
const unsigned TX_INTERVAL = 60;
// Pin mapping for Adafruit Feather M0 LoRa
const lmic_pinmap lmic_pins = {
.nss = 8,
.rxtx = LMIC_UNUSED_PIN,
.rst = 4,
.dio = {3, 6, LMIC_UNUSED_PIN},
.rxtx_rx_active = 0,
.rssi_cal = 8, // LBT cal for the Adafruit Feather M0 LoRa, in dB
.spi_freq = 8000000,
};
void onEvent (ev_t ev) {
Serial.print(os_getTime());
Serial.print(": ");
switch(ev) {
case EV_SCAN_TIMEOUT:
Serial.println(F("EV_SCAN_TIMEOUT"));
break;
case EV_BEACON_FOUND:
Serial.println(F("EV_BEACON_FOUND"));
break;
case EV_BEACON_MISSED:
Serial.println(F("EV_BEACON_MISSED"));
break;
case EV_BEACON_TRACKED:
Serial.println(F("EV_BEACON_TRACKED"));
break;
case EV_JOINING:
Serial.println(F("EV_JOINING"));
break;
case EV_JOINED:
Serial.println(F("EV_JOINED"));
{
u4_t netid = 0;
devaddr_t devaddr = 0;
u1_t nwkKey[16];
u1_t artKey[16];
LMIC_getSessionKeys(&netid, &devaddr, nwkKey, artKey);
Serial.print("netid: ");
Serial.println(netid, DEC);
Serial.print("devaddr: ");
Serial.println(devaddr, HEX);
Serial.print("artKey: ");
for (int i=0; i<sizeof(artKey); ++i) {
if (i != 0)
Serial.print("-");
Serial.print(artKey[i], HEX);
}
Serial.println("");
Serial.print("nwkKey: ");
for (int i=0; i<sizeof(nwkKey); ++i) {
if (i != 0)
Serial.print("-");
Serial.print(nwkKey[i], HEX);
}
Serial.println("");
}
// Disable link check validation (automatically enabled
// during join, but because slow data rates change max TX
// size, we don't use it in this example.
LMIC_setLinkCheckMode(0);
break;
/*
|| This event is defined but not used in the code. No
|| point in wasting codespace on it.
||
|| case EV_RFU1:
|| Serial.println(F("EV_RFU1"));
|| break;
*/
case EV_JOIN_FAILED:
Serial.println(F("EV_JOIN_FAILED"));
break;
case EV_REJOIN_FAILED:
Serial.println(F("EV_REJOIN_FAILED"));
break;
break;
case EV_TXCOMPLETE:
Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));
if (LMIC.txrxFlags & TXRX_ACK)
Serial.println(F("Received ack"));
if (LMIC.dataLen) {
Serial.println(F("Received "));
Serial.println(LMIC.dataLen);
Serial.println(F(" bytes of payload"));
}
// Schedule next transmission
os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send);
break;
case EV_LOST_TSYNC:
Serial.println(F("EV_LOST_TSYNC"));
break;
case EV_RESET:
Serial.println(F("EV_RESET"));
break;
case EV_RXCOMPLETE:
// data received in ping slot
Serial.println(F("EV_RXCOMPLETE"));
break;
case EV_LINK_DEAD:
Serial.println(F("EV_LINK_DEAD"));
break;
case EV_LINK_ALIVE:
Serial.println(F("EV_LINK_ALIVE"));
break;
/*
|| This event is defined but not used in the code. No
|| point in wasting codespace on it.
||
|| case EV_SCAN_FOUND:
|| Serial.println(F("EV_SCAN_FOUND"));
|| break;
*/
case EV_TXSTART:
Serial.println(F("EV_TXSTART"));
break;
default:
Serial.print(F("Unknown event: "));
Serial.println((unsigned) ev);
break;
}
}
void do_send(osjob_t* j){
// Check if there is not a current TX/RX job running
if (LMIC.opmode & OP_TXRXPEND) {
Serial.println(F("OP_TXRXPEND, not sending"));
} else {
// Prepare upstream data transmission at the next possible time.
LMIC_setTxData2(1, mydata, sizeof(mydata)-1, 0);
Serial.println(F("Packet queued"));
}
// Next TX is scheduled after TX_COMPLETE event.
}
void setup() {
delay(5000);
while (! Serial)
;
Serial.begin(9600);
Serial.println(F("Starting"));
// LMIC init
os_init();
// Reset the MAC state. Session and pending data transfers will be discarded.
LMIC_reset();
LMIC_setClockError(MAX_CLOCK_ERROR * 1 / 100);
//LMIC_setLinkCheckMode(1);
LMIC_setAdrMode(1);
Serial.println(DR_NONE);
LMIC_setDrTxpow(DR_SF7,14);
LMIC_selectSubBand(1);
// Start job (sending automatically starts OTAA too)
do_send(&sendjob);
}
void loop() {
os_runloop_once();
}
’’’
This is what the gateway is sending to thethingsnetwork:
Here is what the Raspberry Pi log shows:
Thanks for any insight!
