255 lines
7.3 KiB
C++
255 lines
7.3 KiB
C++
// Hello LoRa - ABP TTN Packet Sender (Multi-Channel)
|
|
// Tutorial Link: https://learn.adafruit.com/the-things-network-for-feather/using-a-feather-32u4
|
|
//
|
|
// Adafruit invests time and resources providing this open source code.
|
|
// Please support Adafruit and open source hardware by purchasing
|
|
// products from Adafruit!
|
|
//
|
|
// Copyright 2015, 2016 Ideetron B.V.
|
|
//
|
|
// Modified by Brent Rubell for Adafruit Industries, 2018
|
|
/************************** Configuration ***********************************/
|
|
#include <TinyGPS++.h>
|
|
#include <SoftwareSerial.h>
|
|
#include <TinyLoRa.h>
|
|
#include <SPI.h>
|
|
#include "Base64.h"
|
|
#include "gateway/message.pb.h"
|
|
|
|
#include "pb_common.h"
|
|
#include "pb.h"
|
|
#include "pb_encode.h"
|
|
#include "pb_decode.h"
|
|
|
|
#include "gateway/message.pb.h"
|
|
|
|
// Visit your thethingsnetwork.org device console
|
|
// to create an account, or if you need your session keys.
|
|
|
|
// Network Session Key (MSB)
|
|
uint8_t NwkSkey[16] = {0x52, 0x92, 0xC0, 0x72, 0x2D, 0x3C, 0x55, 0x5E, 0xE4, 0xB9, 0x9E, 0x9B, 0x88, 0x66, 0x47, 0xF1};
|
|
|
|
// Application Session Key (MSB)
|
|
uint8_t AppSkey[16] = {0xC4, 0x30, 0xEF, 0x56, 0x4F, 0x6D, 0xA2, 0x56, 0x1F, 0x15, 0x2F, 0xB8, 0x62, 0xC7, 0xCA, 0xC2};
|
|
|
|
// Device Address (MSB)
|
|
uint8_t DevAddr[4] = {0x26, 0x02, 0x12, 0xB6};
|
|
|
|
/************************** Example Begins Here ***********************************/
|
|
// Data Packet to Send to TTN
|
|
unsigned char loraData[50] = {"hello LoRa"};
|
|
|
|
// How many times data transfer should occur, in seconds
|
|
// const unsigned int sendInterval = 30;
|
|
const unsigned int sendInterval = 60;
|
|
|
|
// Pinout for Adafruit Feather 32u4 LoRa
|
|
TinyLoRa lora = TinyLoRa(2, 10, 9);
|
|
TinyGPSPlus gps;
|
|
SoftwareSerial ss(6, 7);
|
|
|
|
// Pinout for Adafruit Feather M0 LoRa
|
|
//TinyLoRa lora = TinyLoRa(3, 8, 4);
|
|
|
|
const uint8_t N_POLY_MAX=100;
|
|
float polyx[N_POLY_MAX];
|
|
float polyy[N_POLY_MAX];
|
|
int n_poly=0;
|
|
int push_vert(float x, float y) {
|
|
if(n_poly>N_POLY_MAX)
|
|
return 0;
|
|
polyx[n_poly]=x;
|
|
polyy[n_poly]=y;
|
|
n_poly++;
|
|
return 1;
|
|
}
|
|
void clear_verts() {
|
|
n_poly=0;
|
|
}
|
|
int pnpoly(int nvert, float *vertx, float *verty, float testx, float testy)
|
|
{ //from stack overflow, check that coordinate is within polygon boundary
|
|
int i, j, c = 0;
|
|
for (i = 0, j = nvert-1; i < nvert; j = i++) {
|
|
if ( ((verty[i]>testy) != (verty[j]>testy)) &&
|
|
(testx < (vertx[j]-vertx[i]) * (testy-verty[i]) / (verty[j]-verty[i]) + vertx[i]) )
|
|
c = !c;
|
|
}
|
|
return c;
|
|
}
|
|
int check_bounds(float x, float y) {
|
|
return pnpoly(n_poly, polyx, polyy, x, y);
|
|
}
|
|
bool Fenceless_Coordinates_callback(pb_istream_t *stream, const pb_field_iter_t *field, void **arg) {
|
|
Serial.println("Called");
|
|
while(stream->bytes_left) {
|
|
Fenceless_Coordinate m = Fenceless_Coordinate_init_zero;
|
|
if(!pb_decode(stream, Fenceless_Coordinate_fields, &m)) {
|
|
return false;
|
|
}
|
|
push_vert(m.x,m.y);
|
|
return true;
|
|
}
|
|
}
|
|
void import_protobuf(uint8_t *protobuffer, uint32_t size) {
|
|
Fenceless_Coordinates m;
|
|
pb_istream_t stream = pb_istream_from_buffer(protobuffer, size);
|
|
int status = pb_decode(&stream, Fenceless_Coordinates_fields, &m);
|
|
if(!status){
|
|
Serial.println("Failed to decode");
|
|
}
|
|
clear_verts();
|
|
switch(m.isr) {
|
|
case 10:
|
|
push_vert(m.coord9.x, m.coord9.y);
|
|
case 9:
|
|
push_vert(m.coord8.x, m.coord8.y);
|
|
case 8:
|
|
push_vert(m.coord7.x, m.coord7.y);
|
|
case 7:
|
|
push_vert(m.coord6.x, m.coord6.y);
|
|
case 6:
|
|
push_vert(m.coord5.x, m.coord5.y);
|
|
case 5:
|
|
push_vert(m.coord4.x, m.coord4.y);
|
|
case 4:
|
|
push_vert(m.coord3.x, m.coord3.y);
|
|
case 3:
|
|
push_vert(m.coord2.x, m.coord2.y);
|
|
push_vert(m.coord1.x, m.coord1.y);
|
|
push_vert(m.coord0.x, m.coord0.y);
|
|
}
|
|
}
|
|
bool Fenceless_Coordinates_encode(pb_ostream_t *stream, const pb_field_iter_t *field, void * const * arg) {
|
|
Serial.println("Encode called");
|
|
return false;
|
|
Fenceless_Coordinate c = *(Fenceless_Coordinate*)field->pData;
|
|
if(!pb_encode_tag_for_field(stream, field)) {
|
|
return false;
|
|
}
|
|
return pb_encode(stream, Fenceless_Coordinate_fields, field);
|
|
}
|
|
void test() {
|
|
Serial.println("Testing protobuf");
|
|
uint8_t buffer[100] = {0};
|
|
Fenceless_Coordinates m = Fenceless_Coordinates_init_zero;
|
|
pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
|
|
int status = pb_encode(&stream, Fenceless_Coordinates_fields, &m);
|
|
if(!status){
|
|
Serial.println("Failed to encode");
|
|
}
|
|
import_protobuf(buffer, sizeof(buffer));
|
|
}
|
|
int recieved = 0;
|
|
void on_recieve(int n) {
|
|
recieved = 1;
|
|
}
|
|
void setup()
|
|
{
|
|
delay(1000);
|
|
// start uart
|
|
Serial.begin(9600);
|
|
// start software uart for GPS
|
|
ss.begin(4800);
|
|
while (! Serial);
|
|
|
|
delay(1000);
|
|
// Initialize pin LED_BUILTIN as an output
|
|
pinMode(LED_BUILTIN, OUTPUT);
|
|
|
|
// Initialize GPS - GPS does not work indoors - This will block until GPS available
|
|
// Serial.println("Starting GPS");
|
|
// while(!gps.location.isValid()) {
|
|
// while(ss.available()>0) {
|
|
// gps.encode(ss.read());
|
|
// }
|
|
// if (millis() > 5000 && gps.charsProcessed() < 10)
|
|
// {
|
|
// Serial.println(F("No GPS detected: check wiring."));
|
|
// while(true);
|
|
// }
|
|
// }
|
|
|
|
// Initialize LoRa
|
|
Serial.print("Starting LoRa...");
|
|
// define multi-channel sending
|
|
lora.setChannel(MULTI);
|
|
// set datarate
|
|
lora.setDatarate(SF7BW125);
|
|
if(!lora.begin())
|
|
{
|
|
Serial.println("Failed");
|
|
Serial.println("Check your radio");
|
|
while(true);
|
|
}
|
|
|
|
// Optional set transmit power. If not set default is +17 dBm.
|
|
// Valid options are: -80, 1 to 17, 20 (dBm).
|
|
// For safe operation in 20dBm: your antenna must be 3:1 VWSR or better
|
|
// and respect the 1% duty cycle.
|
|
|
|
lora.setPower(1);
|
|
|
|
// start 1 second timer
|
|
TCCR1A = 0;
|
|
TCCR1B = 0;
|
|
|
|
TCNT1 = 34286; // preload timer
|
|
TCCR1B |= (1 << CS12); // 256 prescaler
|
|
TIMSK1 |= (1 << TOIE1); // enable timer overflow interrupt
|
|
|
|
Serial.println("OK");
|
|
}
|
|
|
|
// TIMER1_OVF_vect is called once per second
|
|
int sendCounter = 0;
|
|
ISR(TIMER1_OVF_vect) {
|
|
digitalWrite(LED_BUILTIN, sendCounter%2);
|
|
if(sendCounter==0 && gps.location.isValid()) {
|
|
Serial.println("Valid gps");
|
|
|
|
// reset send counter
|
|
sendCounter = sendInterval;
|
|
|
|
Fenceless_CollarResponse coord;
|
|
coord.loc.x = gps.location.lat();
|
|
coord.loc.y = gps.location.lng();
|
|
|
|
pb_ostream_t stream;
|
|
stream = pb_ostream_from_buffer(loraData, sizeof(loraData));
|
|
int err = pb_encode(&stream, Fenceless_CollarResponse_fields, &coord);
|
|
|
|
// Generate copy pasteable base64
|
|
// char base64[50];
|
|
// base64_encode(base64, (char*)loraData, stream.bytes_written);
|
|
// Serial.println(stream.bytes_written);
|
|
// Serial.println(base64);
|
|
|
|
Serial.println("Sending LoRa Data...");
|
|
lora.sendData(loraData, stream.bytes_written, lora.frameCounter);
|
|
// Optionally set the Frame Port (1 to 255)
|
|
// uint8_t framePort = 1;
|
|
// lora.sendData(loraData, sizeof(loraData), lora.frameCounter, framePort);
|
|
Serial.print("Frame Counter: ");Serial.println(lora.frameCounter);
|
|
lora.frameCounter++;
|
|
}
|
|
else if (!gps.location.isValid()) {
|
|
Serial.println("waiting for gps");
|
|
}
|
|
else {
|
|
Serial.println("delaying til next frame counter");
|
|
}
|
|
sendCounter--;
|
|
}
|
|
void loop()
|
|
{
|
|
// For later when recieving from gateway is implemented
|
|
// if(recieved) {
|
|
// Serial.println("Recieved something");
|
|
// } else {
|
|
// Serial.println("Nothing yet");
|
|
// }
|
|
if(ss.available()>0)
|
|
gps.encode(ss.read());
|
|
delay(1000);
|
|
}
|