collar/collar.ino

93 lines
1.9 KiB
C++

#include <SPI.h>
#include <LoRa.h>
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
#include "pb_common.h"
#include "pb.h"
#include "pb_encode.h"
#include "message.pb.h"
unsigned long previousMillis = 0;
const long interval = 5000;
float lat = 0;
float lng = 0;
TinyGPSPlus gps;
SoftwareSerial ss(6, 7);
void setup() {
Serial.begin(9600);
ss.begin(9600);
while (!Serial);
Serial.println("LoRa Transceiver");
if (!LoRa.begin(915E6)) {
Serial.println("Starting LoRa failed!");
while (1);
}
LoRa.setSpreadingFactor(7);
}
void loop() {
int packetSize = LoRa.parsePacket();
if (packetSize) {
Serial.print("Received Packet: ");
while (LoRa.available()) {
Serial.print((char) LoRa.read());
}
Serial.println();
}
if (ss.available() > 0)
gps.encode(ss.read());
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
// Gather GPS data
if (gps.location.isValid()) {
Serial.println("Valid GPS");
lat = gps.location.lat();
lng = gps.location.lng();
} else {
lat = 0;
lng = 0;
}
// Encode as protobuf packet
if (lat && lng) {
uint8_t buffer[50] = {0};
Fenceless_CollarResponse m = Fenceless_CollarResponse_init_zero;
pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
m.loc.x = lat;
m.loc.y = lng;
int status = pb_encode(&stream, Fenceless_CollarResponse_fields, &m);
if (!status) {
Serial.println("Failed to encode");
}
Serial.print("Sending packet Lat / Long: ");
Serial.println(lat);
Serial.println(lng);
// send packet
LoRa.beginPacket();
LoRa.print((char *) buffer);
LoRa.endPacket();
} else {
Serial.println("GPS has not yet initialized");
}
}
}