Arduino TTN LoRa node device using PCB Way

1#include <lmic.h>
2#include <hal/hal.h>
3#include <DHT.h>
4
5
6#define  DHTTYPE    DHT22     // DHT 22 (AM2302)
7#define DHTPIN 3
8
9DHT dht(DHTPIN,  DHTTYPE);
10
11
12// LoRaWAN NwkSKey, network session **** DO NOT USE AS IS.  NEEDS TO BE CHANGED AS PER TUTORIAL ******
13static const PROGMEM u1_t NWKSKEY[16]  = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x07, 0x34, 0x13, 0x72, 0x62,  0xFF, 0x6F, 0x7E };
14
15// LoRaWAN AppSKey, application session key **** DO NOT  USE AS IS. NEEDS TO BE CHANGED AS PER TUTORIAL ******
16static const u1_t PROGMEM  APPSKEY[16] = { 0xFF, 0xFF, 0x23, 0x73, 0x0C, 0xD1, 0xED, 0x3A, 0x69, 0x63, 0x75,  0xC9, 0x95, 0x90, 0x59, 0x43 };
17
18// LoRaWAN end-device address (DevAddr) ****  DO NOT USE AS IS. NEEDS TO BE CHANGED AS PER TUTORIAL ******
19static const u4_t  DEVADDR = { 0xFF0BAFFF };
20
21// These callbacks are only used in over-the-air  activation, so they are
22// left empty here (we cannot leave them out completely  unless
23// DISABLE_JOIN is set in config.h, otherwise the linker will complain).
24void  os_getArtEui (u1_t* buf) { }
25void os_getDevEui (u1_t* buf) { }
26void os_getDevKey  (u1_t* buf) { }
27
28static osjob_t sendjob;
29
30// Schedule data trasmission  in every this many seconds (might become longer due to duty
31// cycle limitations).
32//  we set 10 seconds interval
33const unsigned TX_INTERVAL = 10;
34
35// Pin mapping  according to Cytron LoRa Shield RFM
36const lmic_pinmap lmic_pins = {
37  .nss  = 10,
38  .rxtx = LMIC_UNUSED_PIN,
39  .rst = 7,
40  .dio = {4, 5, 6},
41};
42
43void  onEvent (ev_t ev) {
44
45  switch(ev) {
46    case EV_TXCOMPLETE:
47      Serial.println(F("EV_TXCOMPLETE  (includes waiting for RX windows)"));
48      // Schedule next transmission
49      os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send);
50      break;  
51    default:
52      Serial.println(F("Unknown event"));
53      break;
54  }
55}
56
57void do_send(osjob_t* j){
58  int Temperature;
59  int Humidity;
60  
61  // Check if there is not a current TX/RX job running
62  if (LMIC.opmode & OP_TXRXPEND) {
63    Serial.println(F("OP_TXRXPEND, not sending"));
64  } else {
65  // Get Temperature
66  Temperature=int(dht.readTemperature()*10);
67  // Get humidity 
68  Humidity=int(dht.readHumidity()*10);
69
70    // prepare  and schedule data for transmission 
71    LMIC.frame[0] = Temperature >> 8; 
72    LMIC.frame[1] = Temperature;
73    LMIC.frame[2] = Humidity >> 8;
74    LMIC.frame[3]  = Humidity; 
75    LMIC_setTxData2(1, LMIC.frame, 4, 0); // (port 1, 4 bytes, unconfirmed)
76
77    Serial.println(F("Packet queued"));
78  }
79  // Next TX is scheduled after  TX_COMPLETE event.
80}
81
82void setup() {
83  Serial.begin(9600);
84  Serial.println(F("Starting"));
85
86  // Initialize Temp sensor device.
87  dht.begin();
88
89  // LMIC init
90  os_init();
91
92  // Reset the MAC state. Session and pending data transfers  will be discarded.
93  LMIC_reset();
94
95  // Set static session parameters.  Instead of dynamically establishing a session
96  // by joining the network, precomputed  session parameters are be provided.
97  uint8_t appskey[sizeof(APPSKEY)];
98  uint8_t  nwkskey[sizeof(NWKSKEY)];
99  memcpy_P(appskey, APPSKEY, sizeof(APPSKEY));
100  memcpy_P(nwkskey, NWKSKEY, sizeof(NWKSKEY));
101  LMIC_setSession (0x1, DEVADDR,  nwkskey, appskey);
102
103  // Disable link check validation
104  LMIC_setLinkCheckMode(0);
105
106  // Disable ADR
107  LMIC_setAdrMode(false);
108
109  // TTN uses SF9 for its RX2  window.
110  LMIC.dn2Dr = DR_SF9;
111
112  // Set data rate and transmit power for  uplink (note: txpow seems to be ignored by the library)
113  LMIC_setDrTxpow(DR_SF7,14);
114
115  // Start job
116  do_send(&sendjob);
117}
118
119void loop() {
120  os_runloop_once();
121
122}
123