# LMIC upload issue Arduino IDE **URL:** \ **Category:** LMIC\ **Created:** [September 14, 2019, 9:00am UTC](https://www.thethingsnetwork.org/forum/t/lmic-upload-issue-arduino-ide/29931 "2019-09-14T09:00:21Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Wunderbar33](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/wunderbar33/32/25844_2.png) [@Wunderbar33](https://www.thethingsnetwork.org/forum/u/Wunderbar33)\ **Post date:** [September 14, 2019, 8:33pm UTC](https://www.thethingsnetwork.org/forum/t/lmic-upload-issue-arduino-ide/29931/3 "2019-09-14T20:33:16Z")
Yes, i created an app and a device with DevEUI and AppEUI! What do you mean with “specialised topics”? I have used the standard LMIC OTAA-demo sketch from the library, here it is: > #include \ > #include \ > #include \ > > // > // For normal use, we require that you edit the sketch to replace FILLMEIN > // with values assigned by the TTN console. However, for regression tests, > // we want to be able to compile these scripts. The regression tests define > // COMPILE\_REGRESSION\_TEST, and in that case we define FILLMEIN to a non- > // working but innocuous value. > // > #ifdef COMPILE\_REGRESSION\_TEST > #define FILLMEIN 0 > #else > #warning “You must replace the values marked FILLMEIN with real values from the TTN control panel!” > #define FILLMEIN (#dont edit this, edit the lines that use FILLMEIN) > #endif > > // This EUI must be in little-endian format, so least-significant-byte > // first. When copying an EUI from ttnctl output, this means to reverse > // the bytes. For TTN issued EUIs the last bytes should be 0xD5, 0xB3, > // 0x70. > static const u1\_t PROGMEM APPEUI[8]={ 0x95, 0xB0, 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]={ 0x5F, 0x07, 0x82, 0x7F, 0x64, 0xB4, 0xE2, 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 ttnctl can be copied as-is. > static const u1\_t PROGMEM APPKEY[16] = { 0x63, 0x7B, 0x54, 0x4C, 0xAF, 0x6D, 0xC8, 0x97, 0x96, 0xE2, 0x56, 0xA2, 0xA2, 0x62, 0xD9, 0xB8 }; > void os\_getDevKey (u1\_t\* buf) { memcpy\_P(buf, APPKEY, 16);} > > static uint8\_t mydata = “Hello, world!”; > 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 > const lmic\_pinmap lmic\_pins = { > .nss = 18, > .rxtx = LMIC\_UNUSED\_PIN, > .rst = 14, > .dio = {26, 33, 32} > }; > > 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 (size\_t i=0; i\ Serial.print(artKey[i], HEX); > } > Serial.println(””); > Serial.print(“nwkKey: “); > for (size\_t i=0; i\ 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; > 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.print(F(“Received “)); > Serial.print(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() { > Serial.begin(9600); > Serial.println(F(“Starting”)); > > ``` > #ifdef VCC_ENABLE > // For Pinoccio Scout boards > pinMode(VCC_ENABLE, OUTPUT); > digitalWrite(VCC_ENABLE, HIGH); > delay(1000); > #endif > > // LMIC init > os_init(); > // Reset the MAC state. Session and pending data transfers will be discarded. > LMIC_reset(); > > // Start job (sending automatically starts OTAA too) > do_send(&sendjob); > > ``` > > } > > void loop() { > os\_runloop\_once(); > } --- _[View the full topic](https://www.thethingsnetwork.org/forum/t/lmic-upload-issue-arduino-ide/29931)._