bgriller / ballon_atmospherique

Commit a66eb1b58dc746189c76411b730c180313caa96b

Authored by bgriller
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1   -// Feather9x_RX
2   -// -*- mode: C++ -*-
3   -// Example sketch showing how to create a simple messaging client (receiver)
4   -// with the RH_RF95 class. RH_RF95 class does not provide for addressing or
5   -// reliability, so you should only use RH_RF95 if you do not need the higher
6   -// level messaging abilities.
7   -// It is designed to work with the other example Feather9x_TX
8   -#include <SPI.h>
9   -#include <RH_RF95.h>
10   -
11   - //for feather m0
12   -#define RFM95_CS 8
13   -#define RFM95_RST 4
14   -#define RFM95_INT 3
15   -
16   -//taille des paquets Lora envoyés à chaque émission
17   -#define TAILLE_RADIOPACKET 20
18   -
19   -// Change to 434.0 or other frequency, must match RX's freq!
20   -#define RF95_FREQ 434.0
21   -// Singleton instance of the radio driver
22   -RH_RF95 rf95(RFM95_CS, RFM95_INT);
23   -// Blinky on receipt
24   -#define LED 13
25   -
26   -
27   -
28   -//Fonction vidage de buffer série
29   -void serialFlush(){
30   - pinMode(LED, OUTPUT);
31   - while(Serial.available() > 0) {
32   - char t = Serial.read();
33   - }
34   -}
35   -
36   -void RAZradiopacket(uint8_t radiopacket[TAILLE_RADIOPACKET]){
37   - int j;
38   - for(j=0;j<TAILLE_RADIOPACKET;j++){
39   - radiopacket[j] = '0';
40   - }
41   -}
42   -
43   -
44   -
45   -void setup()
46   -{
47   -pinMode(LED, OUTPUT);
48   -pinMode(RFM95_RST, OUTPUT);
49   -digitalWrite(RFM95_RST, HIGH);
50   -while (!Serial);
51   -Serial.begin(9600);
52   -delay(100);
53   -//Serial.println("Feather LoRa RX Test!");
54   -// manual reset
55   -digitalWrite(RFM95_RST, LOW);
56   -delay(10);
57   -digitalWrite(RFM95_RST, HIGH);
58   -delay(10);
59   -while (!rf95.init()) {
60   -Serial.println("LoRa radio init failed");
61   -while (1);
62   -}
63   -Serial.println("Projet IMA Ballon atmospherique ");
64   -// Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM
65   -if (!rf95.setFrequency(RF95_FREQ)) {
66   -Serial.println("setFrequency failed");
67   -while (1);
68   -serialFlush();
69   -
70   -}
71   -Serial.print("Set Freq to: "); Serial.println(RF95_FREQ);
72   -// Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on
73   -// The default transmitter power is 13dBm, using PA_BOOST.
74   -// If you are using RFM95/96/97/98 modules which uses the PA_BOOST transmitter pin, then
75   -// you can set transmitter powers from 5 to 23 dBm:
76   -rf95.setTxPower(23, false);
77   -//RAZradiopacket(radiopacket_tmp);
78   -//RAZradiopacket(radiopacket);
79   -}
80   -
81   -
82   -int nb_envoi;
83   -uint8_t radiopacket[TAILLE_RADIOPACKET] ="null"; //Chaîne contenant la requête à envoyer à la nacelle
84   -uint8_t radiopacket_tmp[TAILLE_RADIOPACKET]="null";
85   -
86   -void loop()
87   - {
88   - //DECLARATION VARIABLES ET INITIALISATION
89   - char caractere_lu = 0; //caractere à lire
90   - int caractere_dispo = 0; // nombre de caracteres dispo dans le buffer
91   - int i_chaine = 0; //indique l'endroit où on doit écrire dans la chaîne
92   -
93   - memcpy(radiopacket_tmp,radiopacket,TAILLE_RADIOPACKET);
94   -
95   - //LECTURE REQUETE SUR PORT SERIE "SOL"
96   - caractere_dispo = Serial.available();
97   -
98   - while(caractere_dispo > 0) //tant qu'il y a des caractères à lire
99   - {
100   - caractere_lu = Serial.read(); //on lit le caractère
101   - radiopacket[i_chaine] = caractere_lu;
102   - Serial.print(caractere_lu); //puis on le renvoi à l’expéditeur tel quel
103   - caractere_dispo = Serial.available(); //on relit le nombre de caractères dispo
104   - i_chaine++;
105   - }
106   - radiopacket[i_chaine] = 0; // marquage fin du packet
107   -
108   - //si la donnée reçu est différente de la précédente
109   - if(memcmp(radiopacket,radiopacket_tmp,TAILLE_RADIOPACKET)!=0){
110   - Serial.print("\nRequete differente\n");
111   - nb_envoi = 0;
112   - }
113   -
114   -
115   - //ENVOI REQUETE
116   - if (nb_envoi==0){
117   - rf95.send((uint8_t *)radiopacket, sizeof(radiopacket));
118   - Serial.print("Envoi commande\n");
119   - nb_envoi++;
120   - Serial.print("Nb_envoi:");
121   - Serial.println(nb_envoi);
122   - //radiopacket[0] = '0';
123   - //RAZradiopacket(radiopacket);
124   - }
125   -
126   -
127   -
128   - //LECTURE DONNEES VENANT DE LA NACELLE
129   - if (rf95.available())
130   - {
131   - // Should be a message for us now
132   - uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
133   - uint8_t len = sizeof(buf);
134   - if (rf95.recv(buf, &len))
135   - {
136   - digitalWrite(LED, HIGH);
137   - // RH_RF95::printBuffer("Received: ", buf, len);
138   - Serial.print("Reception: ");
139   - Serial.println((char*)buf);
140   - serialFlush();
141   -
142   -
143   -
144   - // Send a reply
145   - //rf95.send(data, sizeof(data));
146   - //rf95.waitPacketSent();
147   - //Serial.println("Sent a reply");
148   - //digitalWrite(LED, LOW);
149   - }
150   - else
151   - {
152   - Serial.println("Receive failed");
153   - }
154   - }
155   - delay(200);
156   -}
157   -