* more experiments

examples/simple_repeater/main.cpp

@@ -7,8 +7,11 @@
   #include <SPIFFS.h>
 #endif
 
+#ifdef WRAPPER_CLASS
 #define RADIOLIB_STATIC_ONLY 1
 #include <RadioLib.h>
+#endif
+
 #include <helpers/ArduinoHelpers.h>
 #include <helpers/StaticPoolPacketManager.h>
 #include <helpers/SimpleMeshTables.h>
@@ -108,9 +111,13 @@ struct ClientInfo {
 #define CLI_REPLY_DELAY_MILLIS  1500
 
 class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
-  RadioLibWrapper* my_radio;
   FILESYSTEM* _fs;
+#ifdef WRAPPER_CLASS
+  RadioLibWrapper* my_radio;
   RADIO_CLASS* _phy;
+#else
+  ESPNOWRadio* my_radio;
+#endif
   mesh::MainBoard* _board;
   unsigned long next_local_advert, next_flood_advert;
   bool _logging;
@@ -474,9 +481,15 @@ protected:
   }
 
 public:
-  MyMesh(RADIO_CLASS& phy, mesh::MainBoard& board, RadioLibWrapper& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, SimpleMeshTables& tables)
+#ifdef WRAPPER_CLASS
+  MyMesh(RADIO_CLASS& phy, mesh::MainBoard& board, RadioLibWrapper& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
      : mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
         _phy(&phy), _board(&board), _cli(board, this, &_prefs, this)
+#else
+  MyMesh(mesh::MainBoard& board, ESPNOWRadio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
+     : mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
+     _board(&board), _cli(board, this, &_prefs, this)
+#endif
   {
     my_radio = &radio;
     memset(known_clients, 0, sizeof(known_clients));
@@ -510,11 +523,13 @@ public:
     // load persisted prefs
     _cli.loadPrefs(_fs);
 
+  #ifdef WRAPPER_CLASS
     _phy->setFrequency(_prefs.freq);
     _phy->setSpreadingFactor(_prefs.sf);
     _phy->setBandwidth(_prefs.bw);
     _phy->setCodingRate(_prefs.cr);
     _phy->setOutputPower(_prefs.tx_power_dbm);
+  #endif
 
     updateAdvertTimer();
     updateFloodAdvertTimer();
@@ -582,7 +597,9 @@ public:
   }
 
   void setTxPower(uint8_t power_dbm) override {
+  #ifdef WRAPPER_CLASS
     _phy->setOutputPower(power_dbm);
+  #endif
   }
 
   void loop() {
@@ -616,7 +633,11 @@ VolatileRTCClock fallback_clock;
 #endif
 AutoDiscoverRTCClock rtc_clock(fallback_clock);
 
+#ifdef WRAPPER_CLASS
 MyMesh the_mesh(radio, board, *new WRAPPER_CLASS(radio, board), *new ArduinoMillis(), fast_rng, rtc_clock, tables);
+#else
+MyMesh the_mesh(board, radio, *new ArduinoMillis(), fast_rng, rtc_clock, tables);
+#endif
 
 void halt() {
   while (1) ;
@@ -636,7 +657,11 @@ void setup() {
 
   if (!radio_init()) { halt(); }
 
+#ifdef WRAPPER_CLASS
   fast_rng.begin(radio.random(0x7FFFFFFF));
+#else
+  fast_rng.begin(radio.intID());
+#endif
 
   FILESYSTEM* fs;
 #if defined(NRF52_PLATFORM)
@@ -652,7 +677,11 @@ void setup() {
 #endif
   if (!store.load("_main", the_mesh.self_id)) {
     MESH_DEBUG_PRINTLN("Generating new keypair");
+  #ifdef WRAPPER_CLASS
     RadioNoiseListener rng(radio);
+  #else
+    #define rng  fast_rng
+  #endif
     the_mesh.self_id = mesh::LocalIdentity(&rng);  // create new random identity
     store.save("_main", the_mesh.self_id);
   }

examples/simple_room_server/main.cpp

@@ -7,8 +7,11 @@
   #include <SPIFFS.h>
 #endif
 
+#ifdef WRAPPER_CLASS
 #define RADIOLIB_STATIC_ONLY 1
 #include <RadioLib.h>
+#endif
+
 #include <helpers/ArduinoHelpers.h>
 #include <helpers/StaticPoolPacketManager.h>
 #include <helpers/SimpleMeshTables.h>
@@ -141,9 +144,13 @@ struct ServerStats {
 };
 
 class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
-  RadioLibWrapper* my_radio;
   FILESYSTEM* _fs;
+#ifdef WRAPPER_CLASS
+  RadioLibWrapper* my_radio;
   RADIO_CLASS* _phy;
+#else
+  ESPNOWRadio* my_radio;
+#endif
   mesh::MainBoard* _board;
   unsigned long next_local_advert, next_flood_advert;
   NodePrefs _prefs;
@@ -593,9 +600,15 @@ protected:
   }
 
 public:
+#ifdef WRAPPER_CLASS
   MyMesh(RADIO_CLASS& phy, mesh::MainBoard& board, RadioLibWrapper& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
      : mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
         _phy(&phy), _board(&board), _cli(board, this, &_prefs, this)
+#else
+  MyMesh(mesh::MainBoard& board, ESPNOWRadio& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
+     : mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables),
+     _board(&board), _cli(board, this, &_prefs, this)
+#endif
   {
     my_radio = &radio;
     next_local_advert = next_flood_advert = 0;
@@ -638,11 +651,13 @@ public:
     // load persisted prefs
     _cli.loadPrefs(_fs);
 
+  #ifdef WRAPPER_CLASS
     _phy->setFrequency(_prefs.freq);
     _phy->setSpreadingFactor(_prefs.sf);
     _phy->setBandwidth(_prefs.bw);
     _phy->setCodingRate(_prefs.cr);
     _phy->setOutputPower(_prefs.tx_power_dbm);
+  #endif
 
     updateAdvertTimer();
   }
@@ -695,7 +710,9 @@ public:
   void dumpLogFile() override { /* no-op */ }
 
   void setTxPower(uint8_t power_dbm) override {
+  #ifdef WRAPPER_CLASS
     _phy->setOutputPower(power_dbm);
+  #endif
   }
 
   void loop() {
@@ -764,7 +781,11 @@ VolatileRTCClock fallback_clock;
 #endif
 AutoDiscoverRTCClock rtc_clock(fallback_clock);
 
+#ifdef WRAPPER_CLASS
 MyMesh the_mesh(radio, board, *new WRAPPER_CLASS(radio, board), *new ArduinoMillis(), fast_rng, rtc_clock, tables);
+#else
+MyMesh the_mesh(board, radio, *new ArduinoMillis(), fast_rng, rtc_clock, tables);
+#endif
 
 void halt() {
   while (1) ;
@@ -784,7 +805,11 @@ void setup() {
 
   if (!radio_init()) { halt(); }
 
+#ifdef WRAPPER_CLASS
   fast_rng.begin(radio.random(0x7FFFFFFF));
+#else
+  fast_rng.begin(radio.intID());
+#endif
 
   FILESYSTEM* fs;
 #if defined(NRF52_PLATFORM)
@@ -799,7 +824,11 @@ void setup() {
   #error "need to define filesystem"
 #endif
   if (!store.load("_main", the_mesh.self_id)) {
+  #ifdef WRAPPER_CLASS
     RadioNoiseListener rng(radio);
+  #else
+    #define rng   fast_rng
+  #endif
     the_mesh.self_id = mesh::LocalIdentity(&rng);  // create new random identity
     store.save("_main", the_mesh.self_id);
   }

examples/simple_secure_chat/main.cpp

@@ -543,7 +543,11 @@ void setup() {
 #ifdef WRAPPER_CLASS
   fast_rng.begin(radio.random(0x7FFFFFFF));
 #else
-  fast_rng.begin(rand());
+  char c = 0;
+  while (c != '\n') {   // wait for ENTER to be pressed
+    if (Serial.available()) c = Serial.read();
+  }
+  fast_rng.begin(millis());
 #endif
 
 #if defined(NRF52_PLATFORM)

src/helpers/esp32/ESPNOWRadio.cpp

@@ -47,6 +47,17 @@ void ESPNOWRadio::begin() {
   }
 }
 
+uint32_t ESPNOWRadio::intID() {
+  uint8_t mac[8];
+  memset(mac, 0, sizeof(mac));
+  esp_efuse_mac_get_default(mac);
+  uint32_t n, m;
+  memcpy(&n, &mac[0], 4);
+  memcpy(&m, &mac[4], 4);
+  
+  return n * m;
+}
+
 void ESPNOWRadio::startSendRaw(const uint8_t* bytes, int len) {
   // Send message via ESP-NOW
   is_send_complete = false;
@@ -79,5 +90,5 @@ int ESPNOWRadio::recvRaw(uint8_t* bytes, int sz) {
 }
 
 uint32_t ESPNOWRadio::getEstAirtimeFor(int len_bytes) {
-  return 100;  // TODO
+  return 2;  // Fast AF
 }

src/helpers/esp32/ESPNOWRadio.h

@@ -22,6 +22,7 @@ public:
   virtual float getLastSNR() const override;
 
   float packetScore(float snr, int packet_len) override { return 0; }
+  uint32_t intID();
 };
 
 #if ESPNOW_DEBUG_LOGGING && ARDUINO

variants/espnow_c3/platformio.ini

@@ -3,11 +3,14 @@
 
 [env:Generic_C3_ESPNOW_terminal_chat]
 extends = esp32_base
-;board = esp32-c3-devkitm-1
-board = esp32-s3-devkitc-1
+board = esp32-c3-devkitm-1
+;board = esp32-s3-devkitc-1
 build_flags =
   ${esp32_base.build_flags}
   -I variants/espnow_c3
+  -D ARDUINO_USB_MODE=1
+  -D ARDUINO_USB_CDC_ON_BOOT=1
+  -D ESP32_CPU_FREQ=80
   -D MAX_CONTACTS=100
   -D MAX_GROUP_CHANNELS=1
   -D ESPNOW_DEBUG_LOGGING=1
@@ -23,3 +26,31 @@ build_src_filter = ${esp32_base.build_src_filter}
 lib_deps =
   ${esp32_base.lib_deps}
   densaugeo/base64 @ ~1.4.0
+
+[env:Generic_C3_ESPNOW_repeater]
+extends = esp32_base
+board = esp32-c3-devkitm-1
+;board = esp32-s3-devkitc-1
+build_flags =
+  ${esp32_base.build_flags}
+  -I variants/espnow_c3
+  -D ARDUINO_USB_MODE=1
+  -D ARDUINO_USB_CDC_ON_BOOT=1
+  -D ESP32_CPU_FREQ=80
+  -D ESPNOW_DEBUG_LOGGING=1
+;  -D P_LORA_TX_LED=8
+;  -D P_LORA_TX_LED=35
+  -D PIN_USER_BTN=0
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+  -D ADVERT_NAME='"ESPNOW Repeater"'
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD='"password"'
+build_src_filter = ${esp32_base.build_src_filter}
+  +<../examples/simple_repeater/main.cpp>
+  +<helpers/esp32/ESPNowRadio.cpp>
+  +<../variants/espnow_c3>
+lib_deps =
+  ${esp32_base.lib_deps}
+  densaugeo/base64 @ ~1.4.0