* ESP-NOW experiment with terminal-chat

src/helpers/esp32/ESPNOWRadio.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <Mesh.h>
+
+class ESPNOWRadio : public mesh::Radio {
+protected:
+  uint32_t n_recv, n_sent;
+
+public:
+  ESPNOWRadio() { n_recv = n_sent = 0; }
+
+  void begin() override;
+  int recvRaw(uint8_t* bytes, int sz) override;
+  uint32_t getEstAirtimeFor(int len_bytes) override;
+  void startSendRaw(const uint8_t* bytes, int len) override;
+  bool isSendComplete() override;
+  void onSendFinished() override;
+
+  uint32_t getPacketsRecv() const { return n_recv; }
+  uint32_t getPacketsSent() const { return n_sent; }
+  virtual float getLastRSSI() const override;
+  virtual float getLastSNR() const override;
+
+  float packetScore(float snr, int packet_len) override { return 0; }
+};
+
+#if ESPNOW_DEBUG_LOGGING && ARDUINO
+  #include <Arduino.h>
+  #define ESPNOW_DEBUG_PRINT(F, ...) Serial.printf("ESP-Now: " F, ##__VA_ARGS__)
+  #define ESPNOW_DEBUG_PRINTLN(F, ...) Serial.printf("ESP-Now: " F "\n", ##__VA_ARGS__)
+#else
+  #define ESPNOW_DEBUG_PRINT(...) {}
+  #define ESPNOW_DEBUG_PRINTLN(...) {}
+#endif