Add support for SX1262 based TBEAMs, see below for more details.

We probe dynamically for the SX1262 or RF95 based radios on TBEAM1.0
boards now.  If either is present it will be used.

src/main.cpp

@@ -271,17 +271,42 @@ void setup()
 #endif
 
     // MUST BE AFTER service.init, so we have our radio config settings (from nodedb init)
-    RadioInterface *rIf =
+    RadioInterface *rIf = NULL;
+
 #if defined(RF95_IRQ)
-        // new CustomRF95(); old Radiohead based driver
-        new RF95Interface(RF95_NSS, RF95_IRQ, RF95_RESET, SPI);
-#elif defined(SX1262_CS)
-        new SX1262Interface(SX1262_CS, SX1262_DIO1, SX1262_RESET, SX1262_BUSY, SPI);
-#else
-        new SimRadio();
+    if (!rIf) {
+        rIf = new RF95Interface(RF95_NSS, RF95_IRQ, RF95_RESET, SPI);
+        if (!rIf->init()) {
+            DEBUG_MSG("Warning: Failed to find RF95 radio\n");
+            delete rIf;
+            rIf = NULL;
+        }
+    }
 #endif
 
-    if (!rIf || !rIf->init())
+#if defined(SX1262_CS)
+    if (!rIf) {
+        rIf = new SX1262Interface(SX1262_CS, SX1262_DIO1, SX1262_RESET, SX1262_BUSY, SPI);
+        if (!rIf->init()) {
+            DEBUG_MSG("Warning: Failed to find SX1262 radio\n");
+            delete rIf;
+            rIf = NULL;
+        }
+    }
+#endif
+
+#ifdef USE_SIM_RADIO
+    if (!rIf) {
+        rIf = new SimRadio;
+        if (!rIf->init()) {
+            DEBUG_MSG("Warning: Failed to find simulated radio\n");
+            delete rIf;
+            rIf = NULL;
+        }
+    }
+#endif
+
+    if (!rIf)
         recordCriticalError(ErrNoRadio);
     else
         router.addInterface(rIf);