Improved stability

src/main.cpp

@@ -1,9 +1,16 @@
 #include <main.h>
 
 void setup() {
+  #ifndef SILENT
+  Serial.begin(115200);
+  delay(5000);
+  #endif
   init_signalize();
   msgID.clear();
   txQueue.clear();
+  NodeDB.clear();
+  
+  MSG("[INF][CryptoEngine]Initializing ... ");
   memcpy(psk.bytes, mypsk, sizeof(mypsk));
   psk.length = sizeof(mypsk);
   crypto->setKey(psk);
@@ -11,6 +18,7 @@ void setup() {
   initRegion();       // create regions[] and load myRegion
   applyModemConfig(); // apply lora settings
   radio.setDio1Action(ISR_dio1Action);
+  MSG("[INF][SX1262]Starting to listen ...\n\r");
   startReceive();
 }
 
@@ -36,31 +44,42 @@ void loop() {
     pck.packetTime = millis();
     pck.size = radio.getPacketLength();
     if (pck.size == 0) {
-      signalizeLED_OFF();
+      MSG("[ERR]Received packet length = 0!\n\r");
       return; // we are still in receive mode
     }
     err = radio.readData(pck.buf, pck.size);
     PacketHeader* h = (PacketHeader *)pck.buf;
+    snr = radio.getSNR();
     if (err == RADIOLIB_ERR_NONE) {
       const int32_t payloadLen = pck.size - sizeof(PacketHeader);
       if (payloadLen < 0) {
-        signalizeLED_OFF();
+        MSG("[WARN]Not a Meshtastic packet, too short!\n\r");
         return; // will not repeat, continue receiving
       }
       const uint8_t hop_limit = h->flags & PACKET_FLAGS_HOP_MASK;
+      MSG("[NEW](id=0x%08X) (HopLim %d) ", h->id, hop_limit);
       repeatPacket = msgID.add(h->id);
-
-      // do not repeat if id is known or hop limit is zero
+      // print new packets only not repeated due to HopLim 0
+      if ((repeatPacket) && (hop_limit==0)) {
+        MSG("\n\r");
+        #ifndef SILENT      
+        perhapsDecode(&pck);
+        MSG("\n\r");
+        #endif
+      }
       if (hop_limit == 0) repeatPacket = false;
-      if ( repeatPacket ){
+      // do not repeat if id is known or hop limit is zero
+      if ( !repeatPacket ){
+        MSG(" !!! no repeat !!!\n\r");
+      } 
+      else {
         h->flags -= 1; // decrease hop limit by 1
         txQueue.add(&pck);
       }
-      
     } else if (err == RADIOLIB_ERR_CRC_MISMATCH) {
-      // CRC Error
+      MSG(" [ERROR]CRC error!\n\r");
     } else {
-      // Receive failed
+      MSG(" [ERROR]Receive failed, code: %i!\n\r", err);
     }
   }
 
@@ -80,22 +99,31 @@ void loop() {
       
     if (p->size > 0) {  // size == 0 means "deleted", we don't send deleted packets
       uint32_t wait = getTxDelayMsecWeighted(snr);
+
+      MSG("[INF]wait %i ms before TX\n\r", wait);
       activeReceiveStart = 0;
       while ( ((now + wait) > millis() ) || ( isActivelyReceiving() ) ) {
         // while waiting, we still are in receive mode
-        if (dio1) return; // new packet arrived, return to handle it
+        if (dio1) {
+          MSG("[INF]New packet, no TX\n\r");
+          return; // new packet arrived, return to handle it
+        }
         delay(5);
       }
       // drop packet if we could not send it in 1 minute
       if ( (p->packetTime + 60*1000) < millis() ) {
         p = NULL;
         PacketSent = true;
-        // could not send packet (time out is 1 minute)
-        signalizeLED_OFF();
+        MSG("[INF] TX aborted, could not send packet in 1 minute\n\r");
         return;
       }
       if (perhapsSend(p) ) {
         // packet successfully sent
+        // try to decode the packet and print it
+        #ifndef SILENT
+        perhapsDecode(p);
+        MSG("\n\r");
+        #endif
         PacketSent = true;
         p = NULL; 
       } else {      
@@ -103,7 +131,7 @@ void loop() {
         PacketSent = true;
       }
     } else {
-      // tried to send empty packet (should not happen)
+      MSG("[ERR]Tried to send empty package! TxQueue count=%i\n\r", txQueue.Count);
       PacketSent = true;
     }
   }
@@ -114,6 +142,10 @@ void loop() {
   }
 
   if (txQueue.Count == 0) {
+    #ifndef SILENT
+    // wait for serial output to conplete
+    delay(10);
+    #endif
     signalizeLED_OFF();
     MCU_deepsleep(); // sleep until IRQ
   }
@@ -142,47 +174,345 @@ void startReceive(){
   dio1 = false;
   err = radio.startReceiveDutyCycleAuto(preambleLength, 8,
     RADIOLIB_SX126X_IRQ_RX_DEFAULT | RADIOLIB_SX126X_IRQ_PREAMBLE_DETECTED | RADIOLIB_SX126X_IRQ_HEADER_VALID);
-  if (err != RADIOLIB_ERR_NONE){  // we got an error
-    radio.reset();
+  //assert(err == RADIOLIB_ERR_NONE);
+  while (err != RADIOLIB_ERR_NONE) {
+    MSG("[ERROR]Radiolib error %d when attempting SX126X startReceiveDutyCycleAuto!\n\r", err);
     delay(500);
+    MSG("[INF]Trying to restart modem...");
+    radio.reset();
     applyModemConfig();
-    startReceive();
-  } 
+    err = radio.startReceiveDutyCycleAuto(preambleLength, 8,
+    RADIOLIB_SX126X_IRQ_RX_DEFAULT | RADIOLIB_SX126X_IRQ_PREAMBLE_DETECTED | RADIOLIB_SX126X_IRQ_HEADER_VALID);
+    (err == RADIOLIB_ERR_NONE) ? MSG("success!\n\r") : MSG("failed!\n\r");
+  }
+  
+  //radio.setDio1Action(ISR_dio1Action);
   isReceiving = true;
+  MSG("[RX] ... \n\r");
 }
 
 // send packet (blocking), MCU sleeps while waiting for TX DONE
 bool perhapsSend(Packet_t* p) {
-  
+  if (!CC_MONITOR_ONLY) {
     if (p->size > RADIOLIB_SX126X_MAX_PACKET_LENGTH) {
+      MSG("\n\r[INF]Packet size is %i! Reducing to %i. Sending ...", p->size, RADIOLIB_SX126X_MAX_PACKET_LENGTH);
       p->size = RADIOLIB_SX126X_MAX_PACKET_LENGTH;
     }
     // clear irq status, standby()
     radio.finishTransmit();
     dio1 = false;
     PacketHeader* h = (PacketHeader *)p->buf;
+    MSG("[TX] (id=0x%08X) HopLim=%i  ", h->id, (h->flags & PACKET_FLAGS_HOP_MASK));
     err=radio.startTransmit(p->buf, p->size);
     isReceiving = false;
     if (err == RADIOLIB_ERR_NONE) {
-      // success
-      signalizeTX_ON();
+      MSG("starting ... ");
     } else {
-      // failed
+      MSG("failed, ERR = %i - resume RX\n\r", err);
       return false;
     }
+    signalizeTX_ON();
     delay(10);
     MCU_deepsleep(); // wait for TX to complete, will wake on any DIO1
     err = radio.getIrqStatus();
     if ( err & RADIOLIB_SX126X_IRQ_TX_DONE ) {
-      // done
-      dio1=true;
+      MSG("done!\n\r");
     } else {
-      // failed
-      dio1 = false;
+      MSG("failed. Returned IRQ=%i\n\r", err);
     }
+    dio1 = false;
     radio.finishTransmit(); 
-    signalizeLED_OFF();
     return ( err & RADIOLIB_SX126X_IRQ_TX_DONE );
+  } else {
+    MSG("[TX]**Monitor only, no TX**\n\r");
+    return true;
+  }
+}
+
+bool perhapsDecode(Packet_t* p) {
+// modified code, (c) Meshtastic https://github.com/meshtastic/firmware
+  PacketHeader* h = (PacketHeader *)p->buf;
+  const int32_t len = p->size - sizeof(PacketHeader);
+  const uint8_t *payload = p->buf + sizeof(PacketHeader);
+  mp.from = h->from;
+  mp.to = h->to;
+  mp.id = h->id;
+  mp.channel = h->channel;
+  mp.hop_limit = h->flags & PACKET_FLAGS_HOP_MASK;
+  mp.hop_limit += 1;
+  mp.want_ack  = h->flags & PACKET_FLAGS_WANT_ACK_MASK;
+  mp.via_mqtt  = h->flags & PACKET_FLAGS_VIA_MQTT_MASK;
+  mp.rx_snr  = snr;
+  mp.rx_rssi = lround(radio.getRSSI());
+  mp.which_payload_variant = meshtastic_MeshPacket_encrypted_tag;
+  mp.encrypted.size = 0;
+  static uint8_t scratchbuf[MAX_RHPACKETLEN];
+  //assert(len <= sizeof(scratchbuf));
+  // we have to copy into a scratch buffer, because mp.encrypted is a union with the decoded protobuf
+  memcpy(scratchbuf, p->buf + sizeof(PacketHeader), len); 
+  crypto->decrypt(mp.from, mp.id, len, scratchbuf);
+  memset(&mp.decoded, 0, sizeof(mp.decoded));
+  if (!pb_decode_from_bytes((const uint8_t*)scratchbuf, len, &meshtastic_Data_msg, &mp.decoded)) {
+    MSG("[ERROR]Invalid protobufs in received mesh packet (bad psk?)!\n\r");
+  } else if (mp.decoded.portnum == meshtastic_PortNum_UNKNOWN_APP) {
+    MSG("[ERROR]Invalid portnum (bad psk?)!\n\r");
+  } else {
+    mp.which_payload_variant = meshtastic_MeshPacket_decoded_tag;
+    mp.channel = generateHash(0);
+    /*
+    if (mp.decoded.portnum == meshtastic_PortNum_TEXT_MESSAGE_COMPRESSED_APP) {
+      char compressed_in[meshtastic_Constants_DATA_PAYLOAD_LEN] = {};
+      char decompressed_out[meshtastic_Constants_DATA_PAYLOAD_LEN] = {};
+      int decompressed_len;
+      memcpy(compressed_in, mp.decoded.payload.bytes, mp.decoded.payload.size);
+      decompressed_len = unishox2_decompress_simple(compressed_in, mp.decoded.payload.size, decompressed_out);
+      memcpy(mp.decoded.payload.bytes, decompressed_out, decompressed_len);
+      mp.decoded.portnum = meshtastic_PortNum_TEXT_MESSAGE_APP;
+    }
+    */
+    memset(theNode.user.short_name, 0, sizeof(theNode.user.short_name));
+    memset(theNode.user.long_name, 0, sizeof(theNode.user.long_name));
+    theNode.num = mp.from;
+    theNode.has_user = false;
+    theNode.has_position = false;
+    theNode.has_device_metrics = false;
+    printPacket();
+    return true;
+  }
+  MSG("[ERROR]No suitable channel found for decoding, hash was 0x%x!\n\r", mp.channel);
+  return false;
+}
+
+void printPacket(void) {
+  MSG("[INF](id=0x%08X) from=0x%.2X(%s) to=0x%.2X(%s), WantAck=%s, HopLim=%d Ch=0x%X", 
+        mp.id, mp.from, NodeDB.get(mp.from), mp.to, NodeDB.get(mp.to), (mp.want_ack)? "YES":"NO", mp.hop_limit, mp.channel);
+  if (mp.which_payload_variant == meshtastic_MeshPacket_decoded_tag) {
+    auto &s = mp.decoded;
+    MSG(" Portnum=%d", s.portnum);
+    if (s.want_response)  MSG(" WANTRESP");
+    if (s.source != 0)    MSG(" source=%08x", s.source);
+    if (s.dest != 0)      MSG(" dest=%08x", s.dest);
+    if (s.request_id)     MSG(" requestId=%0x", s.request_id);
+    if (mp.rx_time != 0)  MSG(" rxtime=%u", mp.rx_time);
+    if (mp.rx_snr != 0.0) MSGFLOAT(" rxSNR=", mp.rx_snr);
+    if (mp.rx_rssi != 0)  MSG(" rxRSSI=%i", mp.rx_rssi);
+    if (mp.via_mqtt != 0) MSG(" via MQTT");
+    if (mp.priority != 0) MSG(" priority=%d", mp.priority);
+    MSG("\n\rPayload: "); 
+    printVariants(); 
+  } else {
+    MSG(" encrypted!\n\r");
+  }  
+}
+
+void printVariants(void){
+  // Make sure we have a decoded packet
+  if (mp.which_payload_variant !=  meshtastic_MeshPacket_decoded_tag) 
+    return;
+  auto &d = mp.decoded;
+
+  // TEXT MESSAGE
+  // /modules/TextMessageModule.cpp
+  if (d.portnum == meshtastic_PortNum_TEXT_MESSAGE_APP){
+    MSG("TEXT ");
+    MSG("\"%.*s\"\n\r", d.payload.size, d.payload.bytes);
+    NodeDB.update(&theNode); // update last heard
+    return;
+  }
+
+  // HARDWARE MESSAGE
+  // /modules/RemoteHardwareModule.cpp
+  if (d.portnum == meshtastic_PortNum_REMOTE_HARDWARE_APP){
+    MSG("GPIO ");
+    meshtastic_NodeRemoteHardwarePin pin;
+    if (!pb_decode_from_bytes(d.payload.bytes, d.payload.size, &meshtastic_NodeRemoteHardwarePin_msg, &pin)) {
+      MSG("*** Error ***\n\r");
+      return;
+    }
+    NodeDB.update(&theNode); // update last seen
+    return;
+  }
+
+  // POSITION MESSAGE
+  // /modules/PositionModule.cpp
+  if (d.portnum == meshtastic_PortNum_POSITION_APP){
+    MSG("POSITION ");
+    meshtastic_Position pos;
+    if (!pb_decode_from_bytes(d.payload.bytes, d.payload.size, &meshtastic_Position_msg, &pos)) {
+      MSG("*** Error ***\n\r");
+      return;
+    }
+    // Log packet size and data fields
+    MSG("Node=%08X(%s) l=%d latI=%d lonI=%d msl=%d hae=%d geo=%d pdop=%d hdop=%d vdop=%d siv=%d fxq=%d fxt=%d pts=%d ",
+             mp.from, NodeDB.get(mp.from), d.payload.size, pos.latitude_i, pos.longitude_i, pos.altitude, pos.altitude_hae,
+             pos.altitude_geoidal_separation, pos.PDOP, pos.HDOP, pos.VDOP, pos.sats_in_view, pos.fix_quality, pos.fix_type, pos.timestamp
+             );
+    MSG("time=%04d-%02d-%02d %02d:%02d:%02d\n\r",
+           year(pos.time), month(pos.time), day(pos.time),
+           hour(pos.time), minute(pos.time), second(pos.time));
+    NodeDB.update(&theNode); // update last heard
+    return;
+  }
+  
+  // NODEINFO MESSAGE
+  // /modules/NodeInfoModule.cpp
+  if (d.portnum == meshtastic_PortNum_NODEINFO_APP){
+    MSG("NODE INFO ");
+    meshtastic_User user;
+    if (!pb_decode_from_bytes(d.payload.bytes, d.payload.size, &meshtastic_User_msg, &user)) {
+      MSG("*** Error ***\n\r");
+      return;
+    }
+    MSG("id:%s short: %s long: %s licensed: %s ",user.id, user.short_name, user.long_name, (user.is_licensed)?"YES":"NO");
+    MSG("MAC:");
+    for (uint8_t i=0; i<sizeof(user.macaddr); i++) { 
+      MSG("%0X",user.macaddr[i]);
+    }
+    MSG(" HW model: %i role: %i\n\r", (uint8_t)user.hw_model, (uint8_t)user.role);
+    theNode.has_user = true;
+    strncpy(theNode.user.short_name, user.short_name, sizeof(theNode.user.short_name) - 1);
+    strncpy(theNode.user.long_name, user.long_name, sizeof(theNode.user.long_name) - 1);
+    NodeDB.update(&theNode); // update user info
+    return;
+  }
+
+  // ROUTING MESSAGE
+  // /modules/RoutingModule.cpp
+   if (d.portnum == meshtastic_PortNum_ROUTING_APP){
+    MSG("ROUTING \n\r");
+    meshtastic_Routing r;
+    if (!pb_decode_from_bytes(d.payload.bytes, d.payload.size, &meshtastic_Routing_msg, &r)) {
+      MSG("*** Error ***\n\r");
+      return;
+    }
+    if (r.which_variant == sizeof(meshtastic_Routing_Error) ) {
+      MSG("RoutingError=%i\n\r", r.error_reason);
+    /*  
+    } else {
+      MSG("RouteRequest ["); 
+      for (uint8_t i=0; i < r.route_request.route_count; i++) MSG("0x%X ", r.route_request.route[i]);
+      MSG("] ");
+      MSG("RouteReply ["); 
+      for (uint8_t i=0; i < r.route_reply.route_count; i++) MSG("0x%X ", r.route_reply.route[i]);
+      MSG("]\n\r");
+    */
+    }
+    NodeDB.update(&theNode); // update last heard
+    return;
+  }
+
+  // TELEMETRY MESSAGE
+  if (d.portnum == meshtastic_PortNum_TELEMETRY_APP){
+    NodeDB.update(&theNode); // update last heard
+    MSG("TELEMETRY");
+    meshtastic_Telemetry telemetry;
+    meshtastic_Telemetry *t = &telemetry;
+    if (!pb_decode_from_bytes(d.payload.bytes, d.payload.size, &meshtastic_Telemetry_msg, &telemetry)) {
+      MSG("*** Error ***\n\r");
+      return;
+    }
+    // /modules/Telemetry/PowerTelemetry.cpp
+    if (t->which_variant == meshtastic_Telemetry_power_metrics_tag) {
+        MSG("(Power Metrics): ");
+        MSGFLOAT(  "ch1_voltage=", t->variant.power_metrics.ch1_voltage);
+        MSGFLOAT(", ch1_current=", t->variant.power_metrics.ch1_current);
+        MSGFLOAT(", ch2_voltage=", t->variant.power_metrics.ch2_voltage);
+        MSGFLOAT(", ch2_current=", t->variant.power_metrics.ch2_current);
+        MSGFLOAT(", ch3_voltage=", t->variant.power_metrics.ch3_voltage);
+        MSGFLOAT(", ch3_current=", t->variant.power_metrics.ch3_current);
+        MSG("\n\r" ); 
+        return;
+    }
+    // /modules/Telemetry/DeviceTelemetry.cpp
+    if (t->which_variant == meshtastic_Telemetry_device_metrics_tag) {
+        MSG("(Device Metrics): ");
+        MSGFLOAT(  "air_util_tx=",         t->variant.device_metrics.air_util_tx);
+        MSGFLOAT(", channel_utilization=", t->variant.device_metrics.channel_utilization);
+        MSGFLOAT(", battery_level=",       t->variant.device_metrics.battery_level);
+        MSGFLOAT(", voltage=",             t->variant.device_metrics.voltage);
+        MSG("\n\r" );
+        return;
+    }
+    // /modules/Telemetry/EnvironmentTelemetry.cpp
+    if (t->which_variant == meshtastic_Telemetry_environment_metrics_tag) {
+        MSG("(Environment Metrics): ");
+        MSGFLOAT("barometric_pressure=", t->variant.environment_metrics.barometric_pressure);
+        MSGFLOAT(", current=",   t->variant.environment_metrics.current);
+        MSGFLOAT(", gas_resistance=",t->variant.environment_metrics.gas_resistance);
+        MSGFLOAT(", rel_humidity=",t->variant.environment_metrics.relative_humidity);
+        MSGFLOAT(", temp=", t->variant.environment_metrics.temperature);
+        MSGFLOAT(", volt=", t->variant.environment_metrics.voltage);
+        MSG("\n\r");
+        return;
+    }
+    // /modules/Telemetry/AirQualityTelemetry.cpp
+    if (t->which_variant == meshtastic_Telemetry_air_quality_metrics_tag) {
+        MSG("Air Quality Metrics:\n\r");
+        MSG( "pm10_standard=%i, pm25_standard=%i, pm100_standard=%i\n\r", 
+                 t->variant.air_quality_metrics.pm10_standard, t->variant.air_quality_metrics.pm25_standard,
+                 t->variant.air_quality_metrics.pm100_standard);
+        MSG("PM1.0(Environmental)=%i, PM2.5(Environmental)=%i, PM10.0(Environmental)=%i\n\r",
+                 t->variant.air_quality_metrics.pm10_environmental, t->variant.air_quality_metrics.pm25_environmental,
+                 t->variant.air_quality_metrics.pm100_environmental);
+        return;
+    }
+  }
+
+  // TRACEROUTE MESSAGE
+  // /modules/TraceRouteModule.cpp
+  if (d.portnum == meshtastic_PortNum_TRACEROUTE_APP){
+    NodeDB.update(&theNode); // update last heard
+    MSG("TRACEROUTE");
+    meshtastic_RouteDiscovery route;
+    if (!pb_decode_from_bytes(d.payload.bytes, d.payload.size, &meshtastic_RouteDiscovery_msg, &route)) {
+      MSG("*** Error ***\n\r");
+      return;
+    }
+    MSG("(seen by %i Nodes", route.route_count);
+    if (route.route_count > 0) {
+      for (uint8_t i=0; i < route.route_count; i++) {
+        MSG(" %08X", route.route[i]);
+      }
+    }
+    MSG(")\n\r");
+    return;
+  }
+
+  // NEIGHBORINFO MESSAGE
+  // /modules/NeighborInfoModule.cpp
+  if (d.portnum == meshtastic_PortNum_NEIGHBORINFO_APP){
+    NodeDB.update(&theNode); // update last heard
+    MSG("NEIGHBORINFO ");
+    meshtastic_NeighborInfo np;
+    if (!pb_decode_from_bytes(d.payload.bytes, d.payload.size, &meshtastic_NeighborInfo_msg, &np)) {
+      MSG("*** Error ***\n\r");
+      return;
+    }
+    MSG("(last sent by %8X) Number of neighbors=%d\n\r", np.last_sent_by_id, np.neighbors_count);
+    for (uint8_t i = 0; i < np.neighbors_count; i++) {
+        MSG("[%8X, ", np.neighbors[i].node_id);
+        MSGFLOAT("snr=", np.neighbors[i].snr);
+        MSG("]\n\r");
+    }
+    return;
+  }
+
+  // ATAK PLUGIN MESSAGE
+  // /modules/AtakPluginModule.cpp
+  if (d.portnum == meshtastic_PortNum_ATAK_PLUGIN){
+    NodeDB.update(&theNode); // update last heard
+    MSG("ATAK \n\r");    
+    return;
+  }
+
+  // No known PortNum:
+  MSG("UNKNOWN #%i \"", d.portnum);
+  NodeDB.update(&theNode); // update last heard
+  for (uint32_t i=0; i < d.payload.size; i++){
+    MSG("%X", d.payload.bytes[i]);
+  }
+  MSG("\"\n\r");
+  return;
 }
 
 // PacketQueueClass Definitions
@@ -202,6 +532,7 @@ void PacketQueueClass::add(Packet_t* p) {
   }
   Queue[idx].size = p->size;
   Queue[idx].packetTime = p->packetTime;
+  MSG("enQueue Index=%i Size=%i\n\r", idx, Queue[idx].size);
   memcpy(Queue[idx].buf, p->buf, p->size);
   this->Count += 1;
 }
@@ -264,6 +595,79 @@ void idStoreClass::clear(void) {
   memset(this->storage, 0, sizeof(this->storage));
 }
 
+// NodeStoreClass Definitions
+
+void NodeStoreClass::clear(void) {
+  for (uint8_t i=1; i < (MAX_NODE_LIST - 1); i++) {
+    this->nodeDB[i].has_user = false;
+    memset(this->nodeDB[i].user.short_name, 0, 5);
+    this->nodeDB[i].num = 0;
+  }
+  this->nodeDB[0].has_user = true;
+  this->nodeDB[0].num = 0xFFFFFFFF;
+  this->nodeDB[0].last_heard = 0xFFFFFFFF;
+  strncpy(this->nodeDB[0].user.short_name, "ALL", 3);
+  strncpy(this->nodeDB[0].user.long_name, "Channel Broadcast", 17);
+}
+    
+// returns false if the Node is already known
+void NodeStoreClass::update(meshtastic_NodeInfo* Node) {
+  uint8_t idx = MAX_NODE_LIST;
+  // check if it is a known Node Number
+  for (uint8_t i=0; i < (MAX_NODE_LIST - 1); i++) {
+    if (this->nodeDB[i].has_user) {
+      if (this->nodeDB[i].num == Node->num) {
+        // known Node
+        idx = i;
+        break;
+      }
+    }
+  }
+  if (idx < MAX_NODE_LIST) {
+    this->nodeDB[idx].last_heard = millis();
+    if (Node->has_user) {
+      strncpy(this->nodeDB[idx].user.short_name, Node->user.short_name, sizeof(this->nodeDB[idx].user.short_name) - 1);
+      strncpy(this->nodeDB[idx].user.long_name,  Node->user.long_name,  sizeof(this->nodeDB[idx].user.long_name)  - 1);
+    }
+  } else { // new entry
+    this->add(Node);
+  }
+}
+
+// get the short name of the node. "" if unknown.
+char* NodeStoreClass::get(uint32_t num) {
+  for (uint8_t i=0; i < MAX_NODE_LIST; i++) {
+    if (this->nodeDB[i].has_user) {
+      if (this->nodeDB[i].num == num) {
+        return this->nodeDB[i].user.short_name;
+      }
+    }
+  }
+  return "";
+}
+
+void NodeStoreClass::add(meshtastic_NodeInfo* Node) {
+  Node->last_heard = millis();
+  uint8_t idx = 0;
+  for (uint8_t i=1; i < (MAX_NODE_LIST - 1); i++) {
+    if (!this->nodeDB[i].has_user) {
+      idx = i;
+      break; // found unused slot
+    } else {
+      // find oldest node (longest time not heard from), overwrite if necessary
+      if (this->nodeDB[i].last_heard < this->nodeDB[idx].last_heard) {
+        idx = i;
+      }
+    }
+  }
+  this->nodeDB[idx].num = Node->num;;
+  this->nodeDB[idx].has_user = true;
+  this->nodeDB[idx].last_heard = Node->last_heard;
+  if (Node->has_user) {
+    strncpy(this->nodeDB[idx].user.short_name, Node->user.short_name, sizeof(this->nodeDB[idx].user.short_name) - 1);
+    strncpy(this->nodeDB[idx].user.long_name,  Node->user.long_name,  sizeof(this->nodeDB[idx].user.long_name)  - 1);
+  }
+}
 
 void init_signalize(void) {
 #ifdef CC_SIGNAL_NEOPIXEL
@@ -282,7 +686,7 @@ void init_signalize(void) {
 
 void signalizeRX_ON(void){
 #ifdef CC_SIGNAL_NEOPIXEL
-    pixels.setPixelColor(0, pixels.Color(0, 24, 0));
+    pixels.setPixelColor(0, pixels.Color(0, 16, 0));
     pixels.show();
 #endif
 #ifdef CC_SIGNAL_GPIO13
@@ -292,7 +696,7 @@ void signalizeRX_ON(void){
 
 void signalizeTX_ON(void){
 #ifdef CC_SIGNAL_NEOPIXEL
-    pixels.setPixelColor(0, pixels.Color(24, 0, 0));
+    pixels.setPixelColor(0, pixels.Color(16, 0, 0));
     pixels.show();
 #endif
 #ifdef CC_SIGNAL_GPIO13

src/main.h

@@ -1,6 +1,7 @@
 #pragma Once
 #include <Arduino.h>
 
+//#define SILENT              // turn off serial output
 #define CC_MY_NODE_NUM      0xC00BCE11
 #define CC_MY_REGION        meshtastic_Config_LoRaConfig_RegionCode_EU_868     // see regions[] below
 #define CC_MY_LORA_PRESET   meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST // LONG FAST is default preset
@@ -32,6 +33,14 @@ static const uint8_t mypsk[] = {0xd4, 0xf1, 0xbb, 0x3a, 0x20, 0x29, 0x07, 0x59,
                                 0xf0, 0xbc, 0xff, 0xab, 0xcf, 0x4e, 0x69, 0x01};
 // No Crypto = all zero
 
+#ifndef SILENT
+    #define MSG(...) Serial.printf(__VA_ARGS__)
+    #define MSGFLOAT(a,b) Serial.print(a); Serial.print(b)
+#else
+    #define MSG(...)
+    #define MSGFLOAT(a,b)
+#endif
+
 #define PACKET_FLAGS_HOP_LIMIT_MASK 0x07
 #define PACKET_FLAGS_WANT_ACK_MASK 0x08
 #define PACKET_FLAGS_VIA_MQTT_MASK 0x10
@@ -69,7 +78,7 @@ CubeCell_NeoPixel pixels(1, RGB, NEO_GRB + NEO_KHZ800);
 //#include <assert.h>
 #include <pb.h>
 #include <MeshTypes.h>
-//#include <pb_decode.h>
+#include <pb_decode.h>
 #include <pb_encode.h>
 #include <CryptoEngine.h>
 #include <time.h>
@@ -117,9 +126,20 @@ public:
     bool add(uint32_t id);
 } msgID;
 
+class NodeStoreClass {
+private:
+    meshtastic_NodeInfo nodeDB[MAX_NODE_LIST];
+    void add(meshtastic_NodeInfo* Node);
+public:
+    void clear(void);
+    void update(meshtastic_NodeInfo* Node);
+    // get the short name of the node. "" if unknown.
+    char* get(uint32_t num);
+} NodeDB;
+
 CryptoKey psk;
 meshtastic_MeshPacket mp;
-//meshtastic_NodeInfo theNode;
+meshtastic_NodeInfo theNode;
 bool repeatPacket = false;
 int err = RADIOLIB_ERR_NONE;
 bool PacketReceived = false;
@@ -144,6 +164,9 @@ void ISR_dio1Action(void) {
 void MCU_deepsleep(void);
 void startReceive(void);
 bool perhapsSend(Packet_t* p);
+bool perhapsDecode(Packet_t* p);
+void printPacket(void);
+void printVariants(void);
 
 void signalizeRX_ON(void);
 void signalizeTX_ON(void);
@@ -185,13 +208,25 @@ size_t pb_encode_to_bytes(uint8_t *destbuf, size_t destbufsize, const pb_msgdesc
 {
     pb_ostream_t stream = pb_ostream_from_buffer(destbuf, destbufsize);
     if (!pb_encode(&stream, fields, src_struct)) {
-        return 0;
+        MSG("[ERROR]Panic: can't encode protobuf reason='%s'\n", PB_GET_ERROR(&stream));
         //assert(0); // If this assert fails it probably means you made a field too large for the max limits specified in mesh.options
     } else {
         return stream.bytes_written;
     }
 }
 
+/// helper function for decoding a record as a protobuf, we will return false if the decoding failed
+bool pb_decode_from_bytes(const uint8_t *srcbuf, size_t srcbufsize, const pb_msgdesc_t *fields, void *dest_struct)
+{
+    pb_istream_t stream = pb_istream_from_buffer(srcbuf, srcbufsize);
+    if (!pb_decode(&stream, fields, dest_struct)) {
+        MSG("[ERROR]Can't decode protobuf reason='%s', pb_msgdesc %p\n", PB_GET_ERROR(&stream), fields);
+        return false;
+    } else {
+        return true;
+    }
+}
+
 #define RDEF(name, freq_start, freq_end, duty_cycle, spacing, power_limit, audio_permitted, frequency_switching, wide_lora)      \
     {                                                                                                                            \
         meshtastic_Config_LoRaConfig_RegionCode_##name, freq_start, freq_end, duty_cycle, spacing, power_limit, audio_permitted, \
@@ -333,9 +368,11 @@ const RegionInfo regions[] = {
 
 void initRegion()
 {
+    MSG("[INF]Init region List ...");
     const RegionInfo *r = regions;
     for (; r->code != meshtastic_Config_LoRaConfig_RegionCode_UNSET && r->code != CC_MY_REGION; r++) ;
     myRegion = r;
+    MSG(" done!\n");
 }
 
 /** hash a string into an integer
@@ -495,6 +532,8 @@ void applyModemConfig()
         channel_num = (CC_CHANNEL_SLOT-1) % numChannels;
     }
 
+    MSG("[INF]Channel name is \"%s\"\n\r", channelName);
+    MSG("[INF]Channel slot is %i (%i available frequency slots).\n\r", channel_num + 1, numChannels);
     freq = myRegion->freqStart + (bw / 2000) + (channel_num * (bw / 1000));
 
     // override if we have a verbatim frequency
@@ -502,16 +541,18 @@ void applyModemConfig()
         freq = CC_MY_LORA_FREQ;
         channel_num = -1;
     }
-        
+    
+    MSG("[INF]Using Region %s : freq=%d bw=%i sf=%i cr=%i power=%i ... ",myRegion->name, lround(freq*1E6), lround(bw*1000), sf, cr, power);
+    
     // Syncword is 0x2b, see RadioLibInterface.h
     // preamble length is 16, see RadioInterface.h
     
     err = radio.begin(freq, bw, sf, cr, 0x2b, power, 16); 
-    
+
     if (err == RADIOLIB_ERR_NONE) {
-       // success
+        MSG("success!\n");
     } else {
-        signalizeTX_ON();
+        MSG("\n[ERROR] [SX1262} Init failed, code: %i\n\n\r ** Full Stop **", err);
         while (true);
     }
 
@@ -519,6 +560,7 @@ void applyModemConfig()
     slotTimeMsec = 8.5 * pow(2, sf) / bw + 0.2 + 0.4 + 7;
     preambleTimeMsec = getPacketTime((uint32_t)0);
     maxPacketTimeMsec = getPacketTime(meshtastic_Constants_DATA_PAYLOAD_LEN + sizeof(PacketHeader));
+    MSG("[INF]SlotTime=%ims PreambleTime=%ims maxPacketTime=%ims\n\r", slotTimeMsec, preambleTimeMsec, maxPacketTimeMsec);
 }
 
 /** The delay to use when we want to flood a message */
@@ -555,10 +597,12 @@ bool isActivelyReceiving()
         } else if ((now - activeReceiveStart > 2 * preambleTimeMsec) && !(irq & RADIOLIB_SX126X_IRQ_HEADER_VALID)) {
             // The HEADER_VALID flag should be set by now if it was really a packet, so ignore PREAMBLE_DETECTED flag
             activeReceiveStart = 0;
+            MSG("Ignore false preamble detection.\n\r");
             return false;
         } else if (now - activeReceiveStart > maxPacketTimeMsec) {
             // We should have gotten an RX_DONE IRQ by now if it was really a packet, so ignore HEADER_VALID flag
             activeReceiveStart = 0;
+            MSG("Ignore false header detection.\n\r");
             return false;
         }
     }