![](/media/cache/group/V2.png.50x50_q85.png)
FN
Dependencies: mbed RF24Network RF24
main.cpp
- Committer:
- guillaume6544
- Date:
- 2019-03-25
- Revision:
- 6:d46e3c0c8d35
- Parent:
- 5:bfef4ea383be
- Child:
- 7:1b47a2b6329a
File content as of revision 6:d46e3c0c8d35:
#include "mbed.h" #include <RF24Network.h> #include <RF24.h> Serial pc(USBTX, USBRX); InterruptIn button(D8); AnalogIn LM35(A2); RF24 radio(SPI_MOSI, SPI_MISO, SPI_SCK, D9, SPI_CS ); Timer timer; unsigned int temps; int a=0; float temperature; float vitesse; const int n = 2; int addr[n] = {001,001}; float d[n]; int indice=0; void pressed() { button.disable_irq(); timer.stop(); temps = timer.read_us(); d[indice-1]=(temps-70.0)*(vitesse/1000000.0); //printf("distance=%f\r\n",(temps-70.0)*(vitesse/1000000.0); //wait_ms(3); timer.reset(); //a=1; } // Network uses that radio RF24Network network(radio); // Address of our node const uint16_t this_node = 01; // Address of the other node const uint16_t other_node1 = 00; const uint16_t other_node2 = 001; // How often to send payload packet to the other unit const unsigned long interval = 500; //ms // When did we last send? unsigned long last_sent; Timer t; // How many have we sent already unsigned long packets_sent; Timer t_packet; // Structure of our payload struct payload_t { unsigned long ms; unsigned long counter; }; void emmeteur(){ pc.printf("Sending : %d...",indice+1); payload_t payload_tx; payload_tx.ms = t_packet.read_ms(); payload_tx.counter = packets_sent++; RF24NetworkHeader header_tx(/*to node*/ addr[indice]); bool ok = network.write(header_tx,&payload_tx,sizeof(payload_tx)); if (ok){ timer.start(); pc.printf("ok : %d\r\n",indice+1); // a=1; } else pc.printf("failed : %d.\r\n",indice+1); } void emmeteur2(){ pc.printf("Sending : 2..."); payload_t payload_tx; payload_tx.ms = t_packet.read_ms(); payload_tx.counter = packets_sent++; RF24NetworkHeader header_tx(/*to node*/ other_node2); bool ok = network.write(header_tx,&payload_tx,sizeof(payload_tx)); if (ok){ timer.start(); pc.printf("ok : 2.\r\n"); // a=1; } else pc.printf("failed : 2.\r\n"); } int main() { // double cpt=0; float d1,d2; pc.baud(115200); wait_ms(1000); pc.printf("mBed RF24Network node: Tx\r\n"); radio.begin(); network.begin(/*channel*/ 90, /*node address*/ this_node); wait_ms(2000); t.start(); t_packet.start(); temperature = 0; for (int i=0;i<10;i++) { temperature += LM35.read(); wait_ms(10); } temperature = temperature*34; vitesse = 331.5 + 0.595*temperature; button.rise(&pressed); while(1) { // Pump the network regularly network.update(); //if(a==0){ /* If it's time to send a message, send it! */ unsigned long now = t.read_ms(); if ( now >= interval ) { if(indice > 1) { for(int j=0; j<n; j++) printf("distance %d = %f\r\n",j+1,d[j]); indice = 0; } t.reset(); button.enable_irq(); emmeteur(); button.enable_irq(); indice++; } //} } }