commented out references to BMP280 and add pin definitions
//#include "i2c_BMP280.h"
//#define Serial Serial1
#include <avr/sleep.h>
#include <avr/wdt.h>
#include <lmic.h>
#include <hal/hal.h>
#include <SPI.h>
#include "LowPower.h"
#include "i2c.h"
#define Serial Serial1
//BMP280 bmp280;
#include <Arduino.h>
int sleepcycles = 7; // every sleepcycle will last 8 secs, total sleeptime will be sleepcycles * 8 sec
bool joined = false;
bool sleeping = false;
#define LedPin 2 // pin 13 LED is not used, because it is connected to the SPI port
// 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 DEVEUI[8] = { 0x89, 0x49, 0x65, 0x98, 0xEF, 0xAB, 0x12, 0x00 };
static const u1_t APPEUI[8] = { 0xCB, 0x81, 0x00, 0xD0, 0x7E, 0xD5, 0xB3, 0x70 };
// 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 APPKEY[16] = { 0x0A, 0xC2, 0x09, 0xCD, 0x16, 0x5E, 0x1E, 0x7D, 0xA3, 0xA1, 0xD6, 0x38, 0x23, 0xFD, 0x65, 0x0C };
void os_getArtEui (u1_t* buf) {
memcpy(buf, APPEUI, 8);
}
// provide DEVEUI (8 bytes, LSBF)
void os_getDevEui (u1_t* buf) {
memcpy(buf, DEVEUI, 8);
}
// provide APPKEY key (16 bytes)
void os_getDevKey (u1_t* buf) {
memcpy(buf, APPKEY, 16);
}
static osjob_t sendjob;
static osjob_t initjob;
// Pin mapping is hardware specific.
// Pin mapping Doug Larue PCB
// Pin mapping
const lmic_pinmap lmic_pins = {
.nss = 8,
.rxtx = LMIC_UNUSED_PIN,
.rst = 4,
.dio = {7, 6, LMIC_UNUSED_PIN},
};
void onEvent (ev_t ev) {
int i,j;
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);
digitalWrite(LedPin,LOW);
// after Joining a job with the values will be sent.
joined = true;
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"));
// Re-init
os_setCallback(&initjob, initfunc);
break;
case EV_TXCOMPLETE:
sleeping = true;
if (LMIC.dataLen) {
// data received in rx slot after tx
// if any data received, a LED will blink
// this number of times, with a maximum of 10
Serial.print(F("Data Received: "));
Serial.println(LMIC.frame[LMIC.dataBeg],HEX);
i=(LMIC.frame[LMIC.dataBeg]);
// i (0..255) can be used as data for any other application
// like controlling a relay, showing a display message etc.
if (i>10){
i=10; // maximum number of BLINKs
}
for(j=0;j<i;j++)
{
digitalWrite(LedPin,HIGH);
delay(200);
digitalWrite(LedPin,LOW);
delay(400);
}
}
Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));
delay(50); // delay to complete Serial Output before Sleeping
// Schedule next transmission
// next transmission will take place after next wake-up cycle in main loop
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;
}
}
float temperature=10,pascal=999;
void do_send(osjob_t* j) {
byte buffer[2]={11,22};
uint16_t t_value, p_value, s_value;
/* bmp280.awaitMeasurement();
bmp280.getTemperature(temperature);
bmp280.getPressure(pascal);
bmp280.triggerMeasurement();*/
pascal=pascal/100;
Serial.print(" Pressure: ");
Serial.print(pascal);
Serial.print(" Pa; T: ");
Serial.print(temperature);
Serial.println(" C");
temperature+=1;
// getting sensor values
temperature = constrain(temperature,-24,40); //temp in range -24 to 40 (64 steps)
pascal=constrain(pascal,970,1034); //pressure in range 970 to 1034 (64 steps)*/
t_value=int16_t((temperature*(100/6.25)+2400/6.25)); //0.0625 degree steps with offset
// no negative values
Serial.print(F("decoded TEMP: "));
Serial.print(t_value,HEX);
p_value=int16_t((pascal-970)/1); //1 mbar steps, offset 970.
Serial.print(F(" decoded Pascal: "));
Serial.print(p_value,HEX);
s_value=(p_value<<10) + t_value; // putting the bits in the right place
Serial.print(F(" decoded sent: "));
Serial.println(s_value,HEX);
buffer[0]=s_value&0xFF; //lower byte
buffer[1]=s_value>>8; //higher byte
// 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, (uint8_t*) buffer, 2 , 0);
Serial.println(F("Sending: "));
}
}
// initial job
static void initfunc (osjob_t* j) {
// reset MAC state
LMIC_reset();
// start joining
LMIC_startJoining();
// init done - onEvent() callback will be invoked...
}
void setup()
{
delay(1000);
while (!Serial);
delay(250);
Serial.begin(9600); Serial1.begin(9600);
delay(250);
Serial.println(F("Starting now"));
//Serial.print("Probe BMP280: ");
// if (bmp280.initialize()) Serial.println("Sensor found");
// else
// {
// Serial.println("Sensor missing");
// //while (1) {}
// }
// onetime-measure:
/// bmp280.setEnabled(0);
// bmp280.triggerMeasurement();
// if LED is connected to pin 10, it has to be defined before any SPI initialization else
// it will be used as SS (Slave Select) and controlled by the SPI module
pinMode(LedPin, OUTPUT);
//LMIC_setClockError(MAX_CLOCK_ERROR * 10 / 100);
os_init();
// Reset the MAC state. Session and pending data transfers will be discarded.
os_setCallback(&initjob, initfunc);
LMIC_reset();
LMIC_setClockError(MAX_CLOCK_ERROR * 10 / 100);
}
unsigned long time;
void loop()
{
//Serial1.print("*");
// start OTAA JOIN
if (joined==false)
{
os_runloop_once();
}
else
{
do_send(&sendjob); // Sent sensor values
while(sleeping == false)
{
os_runloop_once();
}
sleeping = false;
for (int i=0;i<sleepcycles;i++)
{
LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_OFF); //sleep 8 seconds
}
}
digitalWrite(LedPin,((millis()/100) % 2) && (joined==false)); // only blinking when joining and not sleeping
}```
