Automatic pin mapping for LoRa

lorawan.cpp

@@ -9,9 +9,6 @@ namespace config {
   static const u1_t PROGMEM DEVEUI[8] = LORAWAN_DEVICE_EUI;
   static const u1_t PROGMEM APPKEY[16] = LORAWAN_APPLICATION_KEY;
 }
-// Pin mapping for TTGO LoRa32 V1
-// More info : https://www.thethingsnetwork.org/forum/t/big-esp32-sx127x-topic-part-3/18436
-const lmic_pinmap lmic_pins = { .nss = 18, .rxtx = LMIC_UNUSED_PIN, .rst = 14, .dio = { 26, 33, 32 } };
 
 // Payloads will be automatically sent via MQTT by TheThingsNetwork, and can be seen with:
 //   mosquitto_sub -h eu.thethings.network -t '+/devices/+/up' -u 'APPLICATION-NAME' -P 'ttn-account-v2.4xxxxxxxx-xxxxxxxxxx-xxxxxxxxxxxxxxxxxxxxxx' -v
@@ -167,8 +164,11 @@ namespace lorawan {
 
   void initialize() {
     Serial.println(F("Starting LoRaWAN."));
+    // More info about pin mapping : https://github.com/mcci-catena/arduino-lmic#pin-mapping
+    // Has been tested successfully with ESP32 TTGO LoRa32 V1, and might work with other ESP32+LoRa boards.
+    const lmic_pinmap *pPinMap = Arduino_LMIC::GetPinmap_ThisBoard();
     // LMIC init.
-    os_init();
+    os_init_ex(pPinMap);
     // Reset the MAC state. Session and pending data transfers will be discarded.
     LMIC_reset();
     // Join, but don't send anything yet.

lorawan.h

@@ -6,6 +6,7 @@
 // Tested successfully with v3.2.0 and connected to a thethingsnetwork.org app.
 #include <lmic.h>
 #include <hal/hal.h>
+#include <arduino_lmic_hal_boards.h>
 #include <SPI.h>
 typedef uint8_t u1_t;