add : ajoute la bibliothèque LoRaTransmitter pour envoyer les données

lib/Transmitter/LoRaTransmitter.cpp

@@ -0,0 +1,76 @@
+#include <LoRaTransmitter.h>
+
+RTC_DATA_ATTR uint8_t LWsession[RADIOLIB_LORAWAN_SESSION_BUF_SIZE];
+
+LoRaTransmitter::LoRaTransmitter(
+    uint64_t joinEUI,
+    uint64_t devEUI,
+    uint8_t* nwkKey,
+    uint8_t* appKey
+)
+    : _joinEUI(joinEUI),
+      _devEUI(devEUI),
+      _radio(new Module(LORA_NSS, LORA_DIO0, LORA_RST, LORA_DIO1)),
+      _node(&_radio, &EU868)
+{
+    memcpy(_nwkKey, nwkKey, 16);
+    memcpy(_appKey, appKey, 16);
+}
+
+TransmitError LoRaTransmitter::init()
+{
+    _reset();
+    SPI.begin(LORA_SCK, LORA_MISO, LORA_MOSI, LORA_NSS);
+
+    Serial.print("[LoRaWAN] Init... ");
+    int state = _radio.begin();
+    if (state != RADIOLIB_ERR_NONE)
+    {
+        Serial.printf("ERREUR %d\n", state);
+        return TransmitError::INIT_FAILED;
+    }
+    Serial.println("OK");
+    return TransmitError::OK;
+}
+
+TransmitError LoRaTransmitter::join()
+{
+    int16_t state = RADIOLIB_ERR_NETWORK_NOT_JOINED;
+
+    _node.beginOTAA(_joinEUI, _devEUI, _nwkKey, _appKey);
+    state = _node.activateOTAA();
+    
+    if (state != RADIOLIB_LORAWAN_NEW_SESSION)
+    {
+        Serial.printf("Echec : %d\n", state);
+        return TransmitError::JOIN_FAILED;
+    }
+
+    Serial.println("OK");
+    return TransmitError::OK;
+}
+
+TransmitError LoRaTransmitter::send(uint8_t payload[], size_t size)
+{
+    int state = _node.sendReceive(payload, size, 1);
+    if (state == RADIOLIB_ERR_NONE || state == RADIOLIB_LORAWAN_NO_DOWNLINK)
+    {
+        Serial.println("[TX] OK");
+        return TransmitError::OK;
+    }
+    else
+    {
+        Serial.printf("[TX] Erreur : %d\n", state);
+        return TransmitError::SEND_FAILED;
+    }
+
+}
+
+void LoRaTransmitter::_reset()
+{
+    pinMode(LORA_RST, OUTPUT);
+    digitalWrite(LORA_RST, LOW);
+    delay(10);
+    digitalWrite(LORA_RST, HIGH);
+    delay(10);
+}