* new target/env: Heltec_v2_terminal_chat

src/helpers/CustomSX1276Wrapper.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "CustomSX1276.h"
+#include "RadioLibWrappers.h"
+
+class CustomSX1276Wrapper : public RadioLibWrapper {
+public:
+  CustomSX1276Wrapper(CustomSX1276& radio, mesh::MainBoard& board) : RadioLibWrapper(radio, board) { }
+  bool isReceiving() override { 
+    if (((CustomSX1276 *)_radio)->isReceiving()) return true;
+
+    idle();  // put into standby
+    // do some basic CAD (blocks for ~12780 micros (on SF 10)!)
+    bool activity = (((CustomSX1276 *)_radio)->tryScanChannel() == RADIOLIB_PREAMBLE_DETECTED);
+    idle();
+
+    return activity;
+  }
+  float getLastRSSI() const override { return ((CustomSX1276 *)_radio)->getRSSI(); }
+  float getLastSNR() const override { return ((CustomSX1276 *)_radio)->getSNR(); }
+
+  float packetScore(float snr, int packet_len) override {
+    int sf = ((CustomSX1276 *)_radio)->spreadingFactor;
+    return packetScoreInt(snr, sf, packet_len);
+  }
+};