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sessionm21
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96
collar.cpp
96
collar.cpp
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@ -48,13 +48,19 @@ TinyLoRa lora = TinyLoRa(2, 10, 9);
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TinyGPSPlus gps;
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SoftwareSerial ss(6, 7);
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// Pinout for Adafruit Feather M0 LoRa
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//TinyLoRa lora = TinyLoRa(3, 8, 4);
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/****************************************************
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* Track each pair of X and Y coordinates
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* - arrays are used by the pnpoly function
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***************************************************/
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const uint8_t N_POLY_MAX=100;
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float polyx[N_POLY_MAX];
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float polyy[N_POLY_MAX];
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int n_poly=0;
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/****************************************************
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* Add a coordinate to the arrays
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* - stores a total of N_POLY_MAX pairs
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***************************************************/
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int push_vert(float x, float y) {
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if(n_poly>N_POLY_MAX)
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return 0;
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@ -63,9 +69,17 @@ int push_vert(float x, float y) {
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n_poly++;
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return 1;
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}
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/****************************************************
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* 'Clear' pairs of coordinates
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***************************************************/
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void clear_verts() {
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n_poly=0;
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}
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/****************************************************
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* Check a pair of coordinates against two lists
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* of vertices
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* - https://wrf.ecse.rpi.edu//Research/Short_Notes/pnpoly.html
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***************************************************/
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int pnpoly(int nvert, float *vertx, float *verty, float testx, float testy)
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{ //from stack overflow, check that coordinate is within polygon boundary
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int i, j, c = 0;
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@ -76,9 +90,15 @@ int pnpoly(int nvert, float *vertx, float *verty, float testx, float testy)
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}
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return c;
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}
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/****************************************************
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* Test a coordinate against all vertices
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***************************************************/
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int check_bounds(float x, float y) {
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return pnpoly(n_poly, polyx, polyy, x, y);
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}
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/****************************************************
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* nanopb callback
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***************************************************/
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bool Fenceless_Coordinates_callback(pb_istream_t *stream, const pb_field_iter_t *field, void **arg) {
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Serial.println("Called");
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while(stream->bytes_left) {
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@ -90,6 +110,12 @@ bool Fenceless_Coordinates_callback(pb_istream_t *stream, const pb_field_iter_t
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return true;
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}
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}
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/****************************************************
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* Load coordinates from protobuff stream
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* - currently a maximum of 10 coordinates
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* - loading arrays in nanopb does not appear
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* to work.
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***************************************************/
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void import_protobuf(uint8_t *protobuffer, uint32_t size) {
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Fenceless_Coordinates m;
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pb_istream_t stream = pb_istream_from_buffer(protobuffer, size);
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@ -119,6 +145,9 @@ void import_protobuf(uint8_t *protobuffer, uint32_t size) {
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push_vert(m.coord0.x, m.coord0.y);
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}
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}
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/****************************************************
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* nanopb callback
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***************************************************/
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bool Fenceless_Coordinates_encode(pb_ostream_t *stream, const pb_field_iter_t *field, void * const * arg) {
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Serial.println("Encode called");
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return false;
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@ -128,6 +157,9 @@ bool Fenceless_Coordinates_encode(pb_ostream_t *stream, const pb_field_iter_t *f
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}
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return pb_encode(stream, Fenceless_Coordinate_fields, field);
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}
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/****************************************************
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* live test of protobuf
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***************************************************/
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void test() {
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Serial.println("Testing protobuf");
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uint8_t buffer[100] = {0};
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@ -139,21 +171,27 @@ void test() {
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}
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import_protobuf(buffer, sizeof(buffer));
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}
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int recieved = 0;
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void on_recieve(int n) {
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recieved = 1;
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}
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/****************************************************
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* Initialize values
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***************************************************/
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void setup()
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{
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// give GPS time to start up
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delay(1000);
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// start uart
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/****************************************************
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* Configure USART
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* - onboard serial to usb
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* - software serial connected to GPS module
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***************************************************/
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Serial.begin(9600);
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// start software uart for GPS
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ss.begin(4800);
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while (! Serial);
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delay(1000);
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// Initialize pin LED_BUILTIN as an output
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/****************************************************
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* Configure USART
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* - onboard serial to usb
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* - software serial connected to GPS module
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***************************************************/
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pinMode(LED_BUILTIN, OUTPUT);
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// Initialize GPS - GPS does not work indoors - This will block until GPS available
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@ -169,11 +207,15 @@ void setup()
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// }
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// }
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// Initialize LoRa
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/****************************************************
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* Configure LoRa
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* - set to multi-channel
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* - set datarate
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* - start communication
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* - set transmission power
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***************************************************/
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Serial.print("Starting LoRa...");
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// define multi-channel sending
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lora.setChannel(MULTI);
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// set datarate
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lora.setDatarate(SF12BW125); // SF7BW125
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if(!lora.begin())
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{
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@ -181,15 +223,12 @@ void setup()
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Serial.println("Check your radio");
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while(true);
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}
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// Optional set transmit power. If not set default is +17 dBm.
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// Valid options are: -80, 1 to 17, 20 (dBm).
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// For safe operation in 20dBm: your antenna must be 3:1 VWSR or better
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// and respect the 1% duty cycle.
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lora.setPower(15); // 1
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// start 1 second timer
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/****************************************************
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* Configure Timer Interrupt
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* - set for one second intervals
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***************************************************/
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TCCR1A = 0;
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TCCR1B = 0;
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@ -200,7 +239,15 @@ void setup()
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Serial.println("OK");
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}
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// TIMER1_OVF_vect is called once per second
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/****************************************************
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* Timer interrupt service routine
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* - this logic could be moved to loop()
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* and be controlled by a state variable
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* - generates a protobuf stream with current
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* GPS coordinate values
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* - sends buffer over LoRaWAN on a given
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* send interval
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***************************************************/
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int sendCounter = 0;
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ISR(TIMER1_OVF_vect) {
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digitalWrite(LED_BUILTIN, sendCounter%2);
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@ -240,6 +287,11 @@ ISR(TIMER1_OVF_vect) {
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}
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sendCounter--;
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}
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/****************************************************
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* Main loop
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* - feeds data to GPS module as it is made
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* available
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***************************************************/
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void loop()
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{
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// For later when recieving from gateway is implemented
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