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- /*******************************************************************************
- * Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
- *
- * Permission is hereby granted, free of charge, to anyone
- * obtaining a copy of this document and accompanying files,
- * to do whatever they want with them without any restriction,
- * including, but not limited to, copying, modification and redistribution.
- * NO WARRANTY OF ANY KIND IS PROVIDED.
- *
- * This example sends a valid LoRaWAN packet with payload "Hello,
- * world!", using frequency and encryption settings matching those of
- * the The Things Network.
- *
- * This uses OTAA (Over-the-air activation), where where a DevEUI and
- * application key is configured, which are used in an over-the-air
- * activation procedure where a DevAddr and session keys are
- * assigned/generated for use with all further communication.
- *
- * Note: LoRaWAN per sub-band duty-cycle limitation is enforced (1% in
- * g1, 0.1% in g2), but not the TTN fair usage policy (which is probably
- * violated by this sketch when left running for longer)!
- * To use this sketch, first register your application and device with
- * the things network, to set or generate an AppEUI, DevEUI and AppKey.
- * Multiple devices can use the same AppEUI, but each device has its own
- * DevEUI and AppKey.
- *
- * Do not forget to define the radio type correctly in config.h.
- *
- *******************************************************************************/
- #include <lmic.h>
- #include <hal/hal.h>
- #include <SPI.h>
- #include <DHT.h>;
- #include <CayenneLPP.h>
- //Variables
- int chk;
- float hum; //Stores humidity value
- float temp; //Stores temperature value
- DHT dht(9, DHT22);
- CayenneLPP lpp(51);
- // 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]={ 0x6A, 0xA2, 0x00, 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]={ 0xB9, 0x93, 0x64, 0xA5, 0x67, 0x69, 0x5D, 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.
- // The key shown here is the semtech default key.
- static const u1_t PROGMEM APPKEY[16] = { 0xFC, 0x64, 0x56, 0x92, 0x1A, 0xEB, 0x37, 0x56, 0x37, 0x68, 0x0F, 0x7C, 0x3E, 0x98, 0x92, 0xAB };
- 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 = 10,
- .rxtx = LMIC_UNUSED_PIN,
- .rst = 5,
- .dio = {2, 7, 8},
- };
- 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"));
- // Disable link check validation (automatically enabled
- // during join, but not supported by TTN at this time).
- LMIC_setLinkCheckMode(0);
- break;
- 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;
- default:
- Serial.println(F("Unknown event"));
- 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 {
- hum = dht.readHumidity();
- temp= dht.readTemperature();
- lpp.reset();
- lpp.addTemperature(1, temp);
- lpp.addRelativeHumidity(3, hum);
- // Prepare upstream data transmission at the next possible time.
- LMIC_setTxData2(1, lpp.getBuffer(), lpp.getSize(), 0);
- Serial.println(F("Packet queued"));
- }
- // Next TX is scheduled after TX_COMPLETE event.
- }
- void setup() {
- Serial.begin(115200);
- Serial.println(F("Starting"));
- dht.begin();
- #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();
- }
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