Added Code for Arduino
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ttn_gps_mapper.ino
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213
ttn_gps_mapper.ino
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#include <TinyGPS++.h>
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#include <SoftwareSerial.h>
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#include <lmic.h>
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#include <hal/hal.h>
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uint8_t coords[9];
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static const int RXPin = 0, TXPin = 1; // TXPin not used / dummy
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static const uint32_t GPSBaud = 9600;
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// The TinyGPS++ object
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TinyGPSPlus gps;
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// The serial connection to the GPS device
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SoftwareSerial ss(RXPin, TXPin);
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uint32_t timer = millis();
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// LoraWAN Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
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// https://github.com/matthijskooijman/arduino-lmic
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// -------- LoRa PinMapping FeatherWing Octopus
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// THIS WORKS ONLY with the two additional diodes see wiring diagram
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const lmic_pinmap lmic_pins = {
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.nss = 2, // Connected to pin D
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.rxtx = LMIC_UNUSED_PIN, // For placeholder only, Do not connected on RFM92/RFM95
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.rst = LMIC_UNUSED_PIN, // Needed on RFM92/RFM95? (probably not) D0/GPIO16
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.dio = {
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15, 15, LMIC_UNUSED_PIN }
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};
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// replace with YOUR DEVEUI here use LSB and copy hex to replace 0x00
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static const u1_t PROGMEM DEVEUI[8]={
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0x5C, 0xD6, 0xF2, 0x26, 0x4E, 0xFD, 0xA9, 0x00 };
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void os_getDevEui (u1_t* buf) {
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memcpy_P(buf, DEVEUI, 8);
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}
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// replace with YOUR APPEUI here use LSB and copy hex to replace 0x00
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static const u1_t PROGMEM APPEUI[8]={
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0x62, 0x32, 0x02, 0xD0, 0x7E, 0xD5, 0xB3, 0x70 };
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void os_getArtEui (u1_t* buf) {
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memcpy_P(buf, APPEUI, 8);
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}
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// replace with YOUR APPKEY here use MSB and copy hex to replace 0x00
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static const u1_t PROGMEM APPKEY[16]={
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0xCB, 0xB3, 0x67, 0x6F, 0x88, 0xB6, 0x26, 0x6F, 0x93, 0x9B, 0xE5, 0xC2, 0x5F, 0xF5, 0xE4, 0xE1 };
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void os_getDevKey (u1_t* buf) {
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memcpy_P(buf, APPKEY, 16);
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};
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volatile int LoRaWAN_Tx_Ready = 0; // Merker für ACK
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int LoRaWAN_Rx_Payload = 0 ;
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// -------- LoRa Event
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void onEvent (ev_t ev) {
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Serial.print(os_getTime());
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Serial.print(": ");
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switch(ev) {
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case EV_SCAN_TIMEOUT:
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Serial.println(F("EV_SCAN_TIMEOUT"));
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break;
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case EV_BEACON_FOUND:
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Serial.println(F("EV_BEACON_FOUND"));
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break;
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case EV_BEACON_MISSED:
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Serial.println(F("EV_BEACON_MISSED"));
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break;
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case EV_BEACON_TRACKED:
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Serial.println(F("EV_BEACON_TRACKED"));
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break;
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case EV_JOINING:
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Serial.println(F("EV_JOINING"));
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break;
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case EV_JOINED:
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Serial.println(F("EV_JOINED"));
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// Disable link check validation (automatically enabled
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// during join, but not supported by TTN at this time).
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LMIC_setLinkCheckMode(0);
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break;
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case EV_RFU1:
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Serial.println(F("EV_RFU1"));
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break;
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case EV_JOIN_FAILED:
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Serial.println(F("EV_JOIN_FAILED"));
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break;
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case EV_REJOIN_FAILED:
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Serial.println(F("EV_REJOIN_FAILED"));
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break;
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break;
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case EV_TXCOMPLETE:
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Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));
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if (LMIC.txrxFlags & TXRX_ACK)
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Serial.println(F("Received ack"));
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if (LMIC.dataLen) {
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Serial.println(F("Received "));
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Serial.println(LMIC.dataLen);
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Serial.println(F(" bytes of payload"));
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LoRaWAN_Rx_Payload = 0;
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for (int i = 0;i<LMIC.dataLen;i++) {
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Serial.println(LMIC.frame[i+ LMIC.dataBeg],HEX);
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LoRaWAN_Rx_Payload = 256*LoRaWAN_Rx_Payload+LMIC.frame[i+ LMIC.dataBeg];
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}
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}
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LoRaWAN_Tx_Ready = 1;
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// Schedule next transmission
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//os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send);
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break;
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case EV_LOST_TSYNC:
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Serial.println(F("EV_LOST_TSYNC"));
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break;
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case EV_RESET:
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Serial.println(F("EV_RESET"));
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break;
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case EV_RXCOMPLETE:
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// data received in ping slot
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Serial.println(F("EV_RXCOMPLETE"));
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break;
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case EV_LINK_DEAD:
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Serial.println(F("EV_LINK_DEAD"));
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break;
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case EV_LINK_ALIVE:
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Serial.println(F("EV_LINK_ALIVE"));
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break;
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default:
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Serial.println(F("Unknown event"));
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break;
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}
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}
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void setup(){ // Einmalige Initialisierung
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Serial.begin(115200);
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ss.begin(GPSBaud);
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// -- Initialisiere LoraWAN
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os_init(); // LMIC LoraWAN
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LMIC_reset(); // Reset the MAC state
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LMIC.txpow = 27; // Maximum TX power
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LMIC.datarate=DR_SF12; // Long Range
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LMIC.rps = updr2rps(LMIC.datarate);
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}
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void loop() { // Kontinuierliche Wiederholung
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while (ss.available() > 0)
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if (gps.encode(ss.read()))
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{
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if (gps.location.isValid()) {
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Serial.print(gps.altitude.meters(), 6);
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Serial.print(F(","));
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Serial.print(gps.location.lat(), 6);
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Serial.print(F(","));
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Serial.print(gps.location.lng(), 6);
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Serial.print(F(","));
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Serial.println(gps.location.isValid(), 6);
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if (LMIC.opmode & (1 << 7)) {
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Serial.println(F("OP_TXRXPEND, not sending"));
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}
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else {
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// Prepare upstream data transmission at the next possible time.
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LoRaWAN_Tx_Ready = 0;
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int32_t lati = gps.location.lat() * 10000;
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int32_t lon = gps.location.lng() * 10000;
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int32_t altitudeGPS = gps.altitude.meters(); // int16_t
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int8_t hdopGPS = gps.hdop.value();
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Serial.println(lati);
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Serial.println(lon);
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Serial.println(altitudeGPS);
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Serial.println(hdopGPS);
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// Pad 2 int32_t to 6 8uint_t, big endian (24 bit each, having 11 meter precision)
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coords[0] = lati;
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coords[1] = lati >> 8;
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coords[2] = lati >> 16;
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coords[3] = lon;
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coords[4] = lon >> 8;
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coords[5] = lon >> 16;
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coords[6] = altitudeGPS;
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coords[7] = altitudeGPS >> 8;
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coords[8] = hdopGPS;
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LMIC_setTxData2(1, (uint8_t*) coords, sizeof(coords), 0);
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Serial.println(F("Packet queued"));
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while(LoRaWAN_Tx_Ready==0) {
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yield();
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os_runloop_once();
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}; // Warte bis gesendet
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//}
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// Blockende
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Serial.print(F("Waiting "));
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for (int i = 0;i<120;i++) {
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Serial.print(F("."));
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delay(1000); // for test only - this results in 10 sec transmit, change to much high value to be conform with the duty cycle !!!
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}
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Serial.println(" done.");
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}
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} else {
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Serial.println("no GPS fix");
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}
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}
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}
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