Map cargado y funcionando

Add RPC_LORA_DIGIGATE_1W to build workflow

.github/workflows/build.yml

@@ -101,6 +101,8 @@ jobs:
                       chip: esp32s3
                     - name: QRPLabs_LightGateway_Plus_1_0
                       chip: esp32s3
+                    - name: RPC_LORA_DIGIGATE_1W
+                      chip: esp32                      
                     - name: XIAO_ESP32S3_WIO_SX1262
                       chip: esp32s3
                     - name: TROY_LoRa_APRS

README.md

@@ -51,6 +51,7 @@ ____________________________________________________
 <br />
 
 # Timeline (Versions):
+- 2026-06-10 CAD (Channel Activity Detection) and DIFS (Distributed Inter-Frame Space) added.
 - 2026-03-25 More Boards, SDK update, OTA fix, GPS process update.
 - 2026-02-26 9M2IBR ESP32 1W (400M30S) + GPS board added.
 - 2026-02-25 Code Improvements: reduced String comparisons and improved logic for faster code execution.

common_settings.ini

@@ -32,16 +32,16 @@ lib_deps =
 	adafruit/Adafruit Si7021 Library @ 1.5.3
 	arduino-libraries/NTPClient @ 3.2.1
 	ayushsharma82/ElegantOTA @ 3.1.7
-	bblanchon/ArduinoJson @ 7.4.2
+	bblanchon/ArduinoJson @ 7.4.3
 	jgromes/RadioLib @ 7.6.0
 	knolleary/PubSubClient @ 2.8
 	ESP32Async/AsyncTCP @ 3.4.10
-	ESP32Async/ESPAsyncWebServer @ 3.10.0
+	ESP32Async/ESPAsyncWebServer @ 3.11.1
 	mikalhart/TinyGPSPlus @ 1.0.3
 	richonguzman/APRSPacketLib @ 1.0.4
 display_libs =
-	adafruit/Adafruit GFX Library @ 1.11.9
-	adafruit/Adafruit SSD1306 @ 2.5.10
+	adafruit/Adafruit GFX Library @ 1.12.6
+	adafruit/Adafruit SSD1306 @ 2.5.17
 usb_flags=
 	-DARDUINO_USB_MODE=1
 	-DARDUINO_USB_CDC_ON_BOOT=1

data/igate_conf.json

@@ -28,9 +28,9 @@
         "messagesToRF": false,
         "objectsToRF": false,
         "server": "rotate.aprs2.net",
-        "passcode": "XYZVW",        
+        "passcode": "XYZVW",
         "port": 14580,
-        "filter": "m/10"        
+        "filter": "m/10"
     },
     "personalNote": "",
     "blacklist": "",
@@ -47,10 +47,11 @@
         "rxSignalBandwidth": 125000,
         "txActive": false,
         "txFreq": 433775000,
-        "txSpreadingFactor": 12,
-        "txCodingRate4": 5,
+        "txSpreadingFactor": 9,
+        "txCodingRate4": 7,
         "txSignalBandwidth": 125000,
-        "power": 20
+        "power": 20,
+        "cadActive": true
     },
     "display": {
         "alwaysOn": true,

data_embed/script.js

@@ -118,7 +118,7 @@ function loadSettings(settings) {
     document.getElementById("beacon.latitude").value                    = settings.beacon.latitude;
     document.getElementById("beacon.longitude").value                   = settings.beacon.longitude;
     document.getElementById("beacon.interval").value                    = settings.beacon.interval;
-    document.getElementById("other.rememberStationTime").value          = settings.other.rememberStationTime;   
+    document.getElementById("other.rememberStationTime").value          = settings.other.rememberStationTime;
     document.getElementById("beacon.sendViaAPRSIS").checked             = settings.beacon.sendViaAPRSIS;
 
     document.getElementById("beacon.sendViaRF").checked                 = settings.beacon.sendViaRF;
@@ -148,12 +148,26 @@ function loadSettings(settings) {
     document.getElementById("lora.rxSpreadingFactor").value             = settings.lora.rxSpreadingFactor;
     document.getElementById("lora.rxCodingRate4").value                 = settings.lora.rxCodingRate4;
     document.getElementById("lora.rxSignalBandwidth").value             = settings.lora.rxSignalBandwidth;
+    LoRaRxCheckbox.checked = settings.lora.rxActive;
+    LoRaRxFreq.disabled             = !LoRaRxCheckbox.checked;
+    LoRaRxSpreadingFactor.disabled  = !LoRaRxCheckbox.checked;
+    LoRaRxCodingRate.disabled       = !LoRaRxCheckbox.checked;
+    LoRaRxSignalBandwidth.disabled  = !LoRaRxCheckbox.checked;
+
     document.getElementById("lora.txActive").checked                    = settings.lora.txActive;
     document.getElementById("lora.txFreq").value                        = settings.lora.txFreq;
     document.getElementById("lora.txSpreadingFactor").value             = settings.lora.txSpreadingFactor;
     document.getElementById("lora.txCodingRate4").value                 = settings.lora.txCodingRate4;
-    document.getElementById("lora.txSignalBandwidth").value             = settings.lora.txSignalBandwidth;    
+    document.getElementById("lora.txSignalBandwidth").value             = settings.lora.txSignalBandwidth;
     document.getElementById("lora.power").value                         = settings.lora.power;
+    document.getElementById("lora.cadActive").checked                   = settings.lora.cadActive;
+    LoRaTxCheckbox.checked = settings.lora.txActive;
+    LoRaTxFreq.disabled             = !LoRaTxCheckbox.checked;
+    LoRaTxSpreadingFactor.disabled  = !LoRaTxCheckbox.checked;
+    LoRaTxCodingRate.disabled       = !LoRaTxCheckbox.checked;
+    LoRaTxSignalBandwidth.disabled  = !LoRaTxCheckbox.checked;
+    LoRaPower.disabled              = !LoRaTxCheckbox.checked;
+    LoRaCadActive.disabled          = !LoRaTxCheckbox.checked;
 
     // Display
     document.getElementById("display.alwaysOn").checked                 = settings.display.alwaysOn;
@@ -195,7 +209,7 @@ function loadSettings(settings) {
     TelemetryCheckbox.checked           = settings.wxsensor.active;
     TelemetryHeightCorrection.disabled  = !TelemetryCheckbox.checked;
     TelemetryTempCorrection.disabled    = !TelemetryCheckbox.checked;
-    
+
     // SYSLOG
     document.getElementById("syslog.active").checked                    = settings.syslog.active;
     document.getElementById("syslog.server").value                      = settings.syslog.server;
@@ -205,7 +219,7 @@ function loadSettings(settings) {
     SyslogServer.disabled           = !SyslogCheckbox.checked;
     SyslogPort.disabled             = !SyslogCheckbox.checked;
     SyslogBeaconOverTCPIP.disabled  = !SyslogCheckbox.checked;
-    
+
     // TNC
     if (settings.tnc) {
         document.getElementById("tnc.enableServer").checked             = settings.tnc.enableServer;
@@ -390,6 +404,36 @@ TelemetryCheckbox.addEventListener("change", function () {
     TelemetryTempCorrection.disabled    = !this.checked;
 });
 
+// LoRa Rx Switch
+const LoRaRxCheckbox                = document.querySelector('input[name="lora.rxActive"]');
+const LoRaRxFreq                    = document.querySelector('[name="lora.rxFreq"]');
+const LoRaRxSpreadingFactor         = document.querySelector('[name="lora.rxSpreadingFactor"]');
+const LoRaRxCodingRate              = document.querySelector('[name="lora.rxCodingRate4"]');
+const LoRaRxSignalBandwidth         = document.querySelector('[name="lora.rxSignalBandwidth"]');
+LoRaRxCheckbox.addEventListener("change", function () {
+    LoRaRxFreq.disabled             = !this.checked;
+    LoRaRxSpreadingFactor.disabled  = !this.checked;
+    LoRaRxCodingRate.disabled       = !this.checked;
+    LoRaRxSignalBandwidth.disabled  = !this.checked;
+});
+
+// LoRa Tx Switch
+const LoRaTxCheckbox                = document.querySelector('input[name="lora.txActive"]');
+const LoRaTxFreq                    = document.querySelector('[name="lora.txFreq"]');
+const LoRaTxSpreadingFactor         = document.querySelector('[name="lora.txSpreadingFactor"]');
+const LoRaTxCodingRate              = document.querySelector('[name="lora.txCodingRate4"]');
+const LoRaTxSignalBandwidth         = document.querySelector('[name="lora.txSignalBandwidth"]');
+const LoRaPower                     = document.querySelector('[name="lora.power"]');
+const LoRaCadActive                 = document.querySelector('[name="lora.cadActive"]');
+LoRaTxCheckbox.addEventListener("change", function () {
+    LoRaTxFreq.disabled             = !this.checked;
+    LoRaTxSpreadingFactor.disabled  = !this.checked;
+    LoRaTxCodingRate.disabled       = !this.checked;
+    LoRaTxSignalBandwidth.disabled  = !this.checked;
+    LoRaPower.disabled              = !this.checked;
+    LoRaCadActive.disabled          = !this.checked;
+});
+
 // Syslog Switches
 const SyslogCheckbox                = document.querySelector('input[name="syslog.active"]');
 const SyslogServer                  = document.querySelector('input[name="syslog.server"]');
@@ -559,7 +603,7 @@ function loadReceivedPackets(packets) {
 
         packets.forEach((packet) => {
             const element = document.createElement("tr");
-        
+
             element.innerHTML = `
                         <td>${packet.rxTime}</td>
                         <td>${packet.packet}</td>
@@ -592,8 +636,169 @@ document.querySelector('a[href="/received-packets"]').addEventListener('click',
 
     document.getElementById('received-packets').classList.remove('d-none');
     document.getElementById('configuration').classList.add('d-none');
-    
+
     document.querySelector('button[type=submit]').remove();
 
     fetchReceivedPackets();
-})
+})
+
+
+/* ---------- Stations Map (Leaflet, CDN) ---------- */
+
+let mapInstance    = null;
+let mapMarkers     = null;
+let mapTimer       = null;
+let mapTileErrShown = false;
+let iGateLatLng    = null;
+let mapAutoFitDone = false;
+
+function setMapMessage(text) {
+    const el = document.getElementById("map");
+    if (el) {
+        el.innerHTML = `<div style="display:flex;align-items:center;justify-content:center;height:100%;color:var(--msh-text-dim,#8b949e);text-align:center;padding:20px;">${text}</div>`;
+    }
+}
+
+function loadMapStations(stations) {
+    if (!mapMarkers) return;
+
+    mapMarkers.clearLayers();
+
+    let drawn = 0;
+    (stations || []).forEach((s) => {
+        if (s.lat === 0 && s.lon === 0) return;     // descartar estaciones sin fix
+
+        const popup = `<b>${s.callsign}</b>`
+            + (s.lastHeard ? `<br>Last: ${s.lastHeard}` : "")
+            + `<br>RSSI ${s.RSSI} / SNR ${s.SNR}`
+            + `<br>Packets: ${s.count}`;
+
+        L.circleMarker([s.lat, s.lon], {
+            radius: 6,
+            color: "#1d6fe0",        // borde
+            weight: 2,
+            fillColor: "#3b8cff",    // relleno
+            fillOpacity: 0.9
+        }).bindPopup(popup).addTo(mapMarkers);
+        drawn++;
+    });
+
+    if (!mapAutoFitDone && drawn > 0) {             // auto-fit la 1ª vez que hay estaciones tras abrir
+        fitMapToStations();
+        mapAutoFitDone = true;
+    }
+}
+
+// Encuadra el mapa para que entren todas las estaciones (+ el iGate). 100% navegador.
+function fitMapToStations() {
+    if (!mapInstance) return false;
+
+    const pts = [];
+    if (mapMarkers) {
+        mapMarkers.eachLayer((layer) => {
+            if (layer.getLatLng) pts.push(layer.getLatLng());
+        });
+    }
+    if (iGateLatLng) pts.push(iGateLatLng);
+
+    if (!pts.length) return false;
+    mapInstance.fitBounds(L.latLngBounds(pts), { padding: [30, 30], maxZoom: 14 });
+    return true;
+}
+
+function fetchMapStations() {
+    fetch("/stations.json")
+    .then((response) => response.json())
+    .then((stations) => {
+        loadMapStations(stations);
+    })
+    .catch((err) => {
+        console.error(err);
+
+        console.error(`Failed to load stations`);
+    });
+}
+
+window.showMap = function () {
+    if (typeof L === "undefined") {                 // sin internet el CDN de Leaflet no cargó
+        setMapMessage("Map unavailable &mdash; no internet connection.<br>The map needs internet to load (OpenStreetMap).");
+        return;
+    }
+
+    mapAutoFitDone = false;                          // re-encuadrar en cada apertura del Map
+
+    if (!mapInstance) {
+        mapInstance = L.map("map");
+
+        const tiles = L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
+            maxZoom: 19,
+            attribution: "&copy; OpenStreetMap"
+        }).addTo(mapInstance);
+
+        tiles.on("tileerror", function () {         // tiles no cargan (sin salida a internet)
+            if (!mapTileErrShown) {
+                mapTileErrShown = true;
+                if (window.showToast) showToast("Map tiles could not load — check internet connection.");
+            }
+        });
+
+        mapMarkers = L.layerGroup().addTo(mapInstance);
+
+        const FitControl = L.Control.extend({       // botón "Fit All Stations" (control nativo de Leaflet)
+            options: { position: "topright" },
+            onAdd: function () {
+                const btn = L.DomUtil.create("button", "");
+                btn.type = "button";
+                btn.title = "Fit all stations";
+                btn.textContent = "Fit All Stations";
+                btn.style.cssText = "background:#fff;color:#333;border:2px solid rgba(0,0,0,.2);border-radius:4px;padding:5px 9px;cursor:pointer;font:600 12px sans-serif;box-shadow:0 1px 4px rgba(0,0,0,.3);";
+                L.DomEvent.on(btn, "click", (e) => {
+                    L.DomEvent.stop(e);
+                    fitMapToStations();
+                });
+                return btn;
+            }
+        });
+        mapInstance.addControl(new FitControl());
+
+        fetch("/configuration.json")                // centrar y marcar el iGate
+        .then((response) => response.json())
+        .then((config) => {
+            const lat = (config.beacon && config.beacon.latitude)  || 0;
+            const lon = (config.beacon && config.beacon.longitude) || 0;
+            const callsign = config.callsign || "iGate";
+            mapInstance.setView([lat, lon], (lat || lon) ? 12 : 2);
+
+            if (lat || lon) {                       // rombo rojo en la posición del iGate
+                iGateLatLng = L.latLng(lat, lon);   // guardar para incluirlo en el auto-fit
+                const iGateIcon = L.divIcon({
+                    className: "igate-marker",
+                    html: '<div style="width:14px;height:14px;background:#e23b3b;border:2px solid #fff;transform:rotate(45deg);box-shadow:0 0 4px rgba(0,0,0,.6);"></div>',
+                    iconSize: [18, 18],
+                    iconAnchor: [9, 9]
+                });
+                L.marker([lat, lon], { icon: iGateIcon })
+                    .bindPopup(`<b>${callsign}</b><br>This station`)
+                    .addTo(mapInstance);        // directo al mapa: no se borra en los refrescos
+            }
+        })
+        .catch(() => {
+            mapInstance.setView([0, 0], 2);
+        });
+    }
+
+    setTimeout(function () {                         // el div estuvo oculto: recalcular tamaño
+        if (mapInstance) mapInstance.invalidateSize();
+    }, 0);
+
+    fetchMapStations();
+
+    if (mapTimer) clearInterval(mapTimer);
+
+    mapTimer = setInterval(function () {            // refrescar solo si la sección está visible
+        const section = document.getElementById("sec-maps");
+        if (section && section.classList.contains("active")) {
+            fetchMapStations();
+        }
+    }, 15000);
+}

include/configuration.h

@@ -86,6 +86,7 @@ public:
     int     txCodingRate4;
     long    txSignalBandwidth;
     int     power;
+    bool    cadActive;
 };
 
 class Display {

include/map_utils.h

@@ -0,0 +1,45 @@
+/* Copyright (C) 2025 Ricardo Guzman - CA2RXU
+ *
+ * This file is part of LoRa APRS iGate.
+ *
+ * LoRa APRS iGate is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LoRa APRS iGate is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LoRa APRS iGate. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef MAP_UTILS_H_
+#define MAP_UTILS_H_
+
+#include <Arduino.h>
+#include <vector>
+
+
+struct MapStation {
+    char     callsign[10];      // "XX9XXX-NN" + null  -> clave para deduplicar
+    float    latitude;          // grados decimales (+N / -S)
+    float    longitude;         // grados decimales (+E / -W)
+    char     symbol[3];         // tabla + codigo APRS (ej "/>"), "" si no hay
+    int16_t  rssi;              // ultimo RSSI
+    float    snr;               // ultimo SNR
+    uint16_t count;             // nro de paquetes oidos de esa estacion
+    char     lastHeard[10];     // "HH:MM:SS" si hay NTP valido, "" si no
+    uint32_t lastHeardMillis;   // millis() -> ordenar / expirar (no se muestra)
+};
+
+namespace MAP_Utils {
+
+    void    upsert(const String& callsign, float latitude, float longitude, const String& symbol, int rssi, float snr);
+    String  getStationsJson();
+
+}
+
+#endif

src/LoRa_APRS_iGate.cpp

@@ -68,8 +68,8 @@ ___________________________________________________________________*/
 #endif
 
 
-String              versionDate             = "2026-03-25";
-String              versionNumber           = "3.2.3";
+String              versionDate             = "2026-06-12";
+String              versionNumber           = "4.0.0";
 Configuration       Config;
 WiFiClient          aprsIsClient;
 WiFiClient          mqttClient;

src/aprs_is_utils.cpp

@@ -16,7 +16,7 @@
  * along with LoRa APRS iGate. If not, see <https://www.gnu.org/licenses/>.
  */
 
-#include <APRSPacketLib.h> 
+#include <APRSPacketLib.h>
 #include <WiFiClient.h>
 #include "configuration.h"
 #include "network_manager.h"
@@ -47,7 +47,6 @@ extern bool                 modemLoggedToAPRSIS;
 extern bool                 backupDigiMode;
 extern String               versionNumber;
 
-uint32_t    lastRxTime      = millis();
 bool        passcodeValid   = false;
 uint32_t    lastServerCheck = 0;
 
@@ -403,7 +402,6 @@ namespace APRS_IS_Utils {
                     String aprsisPacket = aprsIsClient.readStringUntil('\r');
                     aprsisPacket.trim();    // Serial.println(aprsisPacket);
                     processAPRSISPacket(aprsisPacket);
-                    lastRxTime = millis();
                 }
             }
         #endif

src/configuration.cpp

@@ -106,6 +106,7 @@ bool Configuration::writeFile() {
         data["lora"]["txCodingRate4"]               = loramodule.txCodingRate4;
         data["lora"]["txSignalBandwidth"]           = loramodule.txSignalBandwidth;
         data["lora"]["power"]                       = loramodule.power;
+        data["lora"]["cadActive"]                   = loramodule.cadActive;
 
         int rxSpreadingFactor = loramodule.rxSpreadingFactor;
         int txSpreadingFactor = loramodule.txSpreadingFactor;
@@ -290,7 +291,6 @@ bool Configuration::readFile() {
         #endif
         digi.backupDigiMode             = data["digi"]["backupDigiMode"] | false;
 
-
         if (data["lora"]["rxActive"].isNull() ||
             data["lora"]["rxFreq"].isNull() ||
             data["lora"]["rxSpreadingFactor"].isNull() ||
@@ -301,7 +301,8 @@ bool Configuration::readFile() {
             data["lora"]["txSpreadingFactor"].isNull() ||
             data["lora"]["txCodingRate4"].isNull() ||
             data["lora"]["txSignalBandwidth"].isNull() ||
-            data["lora"]["power"].isNull()) needsRewrite = true;
+            data["lora"]["power"].isNull() ||
+            data["lora"]["cadActive"].isNull()) needsRewrite = true;
         loramodule.rxActive             = data["lora"]["rxActive"] | true;
         loramodule.rxFreq               = data["lora"]["rxFreq"] | 433775000;
         loramodule.rxSpreadingFactor    = data["lora"]["rxSpreadingFactor"] | 12;
@@ -313,6 +314,7 @@ bool Configuration::readFile() {
         loramodule.txCodingRate4        = data["lora"]["txCodingRate4"] | 5;
         loramodule.txSignalBandwidth    = data["lora"]["txSignalBandwidth"] | 125000;
         loramodule.power                = data["lora"]["power"] | 20;
+        loramodule.cadActive            = data["lora"]["cadActive"] | true;
 
         if (data["display"]["alwaysOn"].isNull() ||
             data["display"]["timeout"].isNull() ||
@@ -503,6 +505,7 @@ void Configuration::setDefaultValues() {
     loramodule.txCodingRate4        = 5;
     loramodule.txSignalBandwidth    = 125000;
     loramodule.power                = 20;
+    loramodule.cadActive            = true;
 
     display.alwaysOn                = true;
     display.timeout                 = 4;

src/digi_utils.cpp

@@ -23,7 +23,6 @@
 #include "digi_utils.h"
 #include "wifi_utils.h"
 #include "lora_utils.h"
-#include "gps_utils.h"
 #include "display.h"
 #include "utils.h"
 

src/display.cpp

@@ -65,7 +65,12 @@
                 #ifdef HELTEC_WSL_V3_DISPLAY
                     Adafruit_SSD1306 display(128, 64, &Wire1, OLED_RST);
                 #else
-                    Adafruit_SSD1306 display(128, 64, &Wire, OLED_RST);
+                    #if defined RPC_LORA_DIGIGATE_1W
+                        #define SCREEN_HEIGHT 32
+                    #else
+                        #define SCREEN_HEIGHT 64
+                    #endif
+                    Adafruit_SSD1306 display(128, SCREEN_HEIGHT, &Wire, OLED_RST);
                 #endif
             #endif
         #endif
@@ -75,6 +80,7 @@
 extern  Configuration   Config;
 
 bool    displayFound    = false;
+int     maxLines;
 
 void displaySetup() {
     #ifdef HAS_DISPLAY
@@ -97,6 +103,11 @@ void displaySetup() {
                 sprite.createSprite(160, 80);
             #endif
         #else
+            #if (SCREEN_HEIGHT == 64)
+                maxLines = 6;
+            #elif (SCREEN_HEIGHT == 32)
+                maxLines = 3;
+            #endif
             #ifdef HAS_EPAPER
                 display.landscape();
                 display.printCenter("LoRa APRS iGate Initialising...");
@@ -297,7 +308,7 @@ void displayShow(const String& header, const String& line1, const String& line2,
                     display.setCursor(0, 0);
                     display.println(header);
                     display.setTextSize(1);
-                    for (int i = 0; i < 6; i++) {
+                    for (int i = 0; i < maxLines; i++) {
                         display.setCursor(0, 16 + (8 * i));
                         display.println(*lines[i]);
                     }

src/lora_utils.cpp

@@ -16,6 +16,7 @@
  * along with LoRa APRS iGate. If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <APRSPacketLib.h>
 #include <RadioLib.h>
 #include "configuration.h"
 #include "network_manager.h"
@@ -23,6 +24,7 @@
 #include "station_utils.h"
 #include "board_pinout.h"
 #include "syslog_utils.h"
+#include "map_utils.h"
 #include "ntp_utils.h"
 #include "display.h"
 #include "utils.h"
@@ -30,13 +32,15 @@
 
 extern Configuration    Config;
 extern NetworkManager   *networkManager;
-extern uint32_t         lastRxTime;
 extern bool             packetIsBeacon;
 
 extern std::vector<ReceivedPacket> receivedPackets;
 
-bool operationDone   = true;
-bool transmitFlag    = true;
+bool operationDone      = true;
+bool transmitFlag       = true;
+
+#define DIFS_SLOTS      2       // Number of secuential CAD slots to consider a free channel to Tx
+int  backoffMax         = 4;    // Max Backoff value (number of CAD slots to wait before Tx)
 
 #ifdef HAS_SX1262
     SX1262 radio = new Module(RADIO_CS_PIN, RADIO_DIO1_PIN, RADIO_RST_PIN, RADIO_BUSY_PIN);
@@ -167,6 +171,34 @@ namespace LoRa_Utils {
         radio.setBandwidth(signalBandwidth);
     }
 
+    bool doCAD() {      // CAD (Channel Activity Detection)
+        return radio.scanChannel() != RADIOLIB_CHANNEL_FREE;    // false=channel free | true=RADIOLIB_LORA_DETECTED or CAD failed
+    }
+
+    bool doDIFS() {
+        for (uint8_t i = DIFS_SLOTS; i > 0; i--) {
+            if (doCAD()) return false;
+        }
+        return true;
+    }
+
+    void waitForDIFS() {
+        while (!doDIFS()) {
+            Serial.println("CAD/DIFS failed, retry...");
+        }
+    }
+
+    void doBEB() {
+        int backoffCounter = random(1, backoffMax + 1);
+        while (backoffCounter > 0) {
+            if (doCAD()) {
+                waitForDIFS();  // busy channel: freeze backoff and restart DIFS
+            } else {
+                backoffCounter--;
+            }
+        }
+    }
+
     void sendNewPacket(const String& newPacket) {
         if (!Config.loramodule.txActive) return;
 
@@ -179,6 +211,12 @@ namespace LoRa_Utils {
         #ifdef INTERNAL_LED_PIN
             if (Config.digi.ecoMode != 1) digitalWrite(INTERNAL_LED_PIN, HIGH);     // disabled in Ultra Eco Mode
         #endif
+
+        if (Config.loramodule.cadActive) {
+            waitForDIFS();  // DIFS (Distributed Inter-Frame Space)
+            doBEB();        // BEB  (Binary Exponential Backoff)
+        }
+
         int state = radio.transmit("\x3c\xff\x01" + newPacket);
         transmitFlag = true;
         if (state == RADIOLIB_ERR_NONE) {
@@ -242,6 +280,11 @@ namespace LoRa_Utils {
                                 receivedPacket.RSSI     = rssi;
                                 receivedPacket.SNR      = snr;
                                 receivedPackets.push_back(receivedPacket);
+
+                                APRSPacket aprsPacket = APRSPacketLib::processReceivedPacket(packet.substring(3), rssi, snr, freqError);
+                                if (aprsPacket.type == 0 || aprsPacket.type == 4) {   // 0 = GPS, 4 = Mic-E (los que traen posición)
+                                    MAP_Utils::upsert(aprsPacket.sender, aprsPacket.latitude, aprsPacket.longitude, aprsPacket.overlay + aprsPacket.symbol, aprsPacket.rssi, aprsPacket.snr);
+                                }
                             }
 
                             if (Config.syslog.active && networkManager->isConnected()) {
@@ -250,7 +293,6 @@ namespace LoRa_Utils {
                         } else {
                             packet = "";
                         }
-                        lastRxTime = millis();
                         return packet;
                     }
                 } else if (state == RADIOLIB_ERR_CRC_MISMATCH) {

src/map_utils.cpp

@@ -0,0 +1,114 @@
+/* Copyright (C) 2025 Ricardo Guzman - CA2RXU
+ *
+ * This file is part of LoRa APRS iGate.
+ *
+ * LoRa APRS iGate is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LoRa APRS iGate is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LoRa APRS iGate. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <ArduinoJson.h>
+#include "map_utils.h"
+#include "ntp_utils.h"
+
+#define MAX_MAP_STATIONS    50
+#define STATION_TTL_MS      3600000UL   // 1 hora (en milisegundos)
+
+
+std::vector<MapStation> mapStations;
+
+
+namespace MAP_Utils {
+
+    // Copia la hora NTP "HH:MM:SS" si es valida; si no hay red (NTP devuelve
+    // un texto de fallback) deja el campo vacio para no guardar hora falsa.
+    void writeFormatedTime(char* dst, size_t size) {
+        String t = NTP_Utils::getFormatedTime();
+        if (t.length() == 8 && t.charAt(2) == ':') {
+            t.toCharArray(dst, size);
+        } else {
+            dst[0] = '\0';
+        }
+    }
+
+    // Inserta una estacion nueva o actualiza la existente (dedup por callsign).
+    // Llamar solo cuando el parser ya decodifico una posicion valida.
+    void upsert(const String& callsign, float latitude, float longitude, const String& symbol, int rssi, float snr) {
+        for (auto &s : mapStations) {                       // 1) ya existe -> actualizar
+            if (callsign.equals(s.callsign)) {
+                s.latitude  = latitude;
+                s.longitude = longitude;
+                s.rssi      = rssi;
+                s.snr       = snr;
+                s.count++;
+                symbol.toCharArray(s.symbol, sizeof(s.symbol));
+                writeFormatedTime(s.lastHeard, sizeof(s.lastHeard));
+                s.lastHeardMillis = millis();
+                return;
+            }
+        }
+
+        if (mapStations.size() >= MAX_MAP_STATIONS) {       // 2) llena -> descartar la mas vieja
+            size_t oldest = 0;
+            for (size_t i = 1; i < mapStations.size(); i++) {
+                if (mapStations[i].lastHeardMillis < mapStations[oldest].lastHeardMillis) {
+                    oldest = i;
+                }
+            }
+            mapStations.erase(mapStations.begin() + oldest);
+        }
+
+        MapStation st = {};                                 // 3) insertar nueva
+        callsign.toCharArray(st.callsign, sizeof(st.callsign));
+        symbol.toCharArray(st.symbol, sizeof(st.symbol));
+        st.latitude  = latitude;
+        st.longitude = longitude;
+        st.rssi      = rssi;
+        st.snr       = snr;
+        st.count     = 1;
+        writeFormatedTime(st.lastHeard, sizeof(st.lastHeard));
+        st.lastHeardMillis = millis();
+        mapStations.push_back(st);
+    }
+
+    void purgeOldStations() {
+        uint32_t now = millis();
+        for (int i = (int)mapStations.size() - 1; i >= 0; i--) {
+            if (now - mapStations[i].lastHeardMillis > STATION_TTL_MS) {
+                mapStations.erase(mapStations.begin() + i);
+            }
+        }
+    }
+
+    String getStationsJson() {
+        purgeOldStations();
+        JsonDocument data;
+
+        for (size_t i = 0; i < mapStations.size(); i++) {
+            data[i]["callsign"]  = mapStations[i].callsign;
+            data[i]["lat"]       = mapStations[i].latitude;
+            data[i]["lon"]       = mapStations[i].longitude;
+            data[i]["symbol"]    = mapStations[i].symbol;
+            data[i]["RSSI"]      = mapStations[i].rssi;
+            data[i]["SNR"]       = mapStations[i].snr;
+            data[i]["count"]     = mapStations[i].count;
+            data[i]["lastHeard"] = mapStations[i].lastHeard;
+        }
+
+        String buffer;
+
+        serializeJson(data, buffer);
+
+        return buffer;
+    }
+
+}

src/ota_utils.cpp

@@ -74,7 +74,7 @@ namespace OTA_Utils {
         Serial.println(success ? "OTA update finished successfully!" : "There was an error during OTA update!");
         displayShow("", "", statusMessage, "", rebootMessage, "", "", 4000);
 
-        isUpdatingOTA = false;
+        if (!success) isUpdatingOTA = false;
     }
 
 }

src/station_utils.cpp

@@ -25,15 +25,11 @@
 #include "utils.h"
 #include <vector>
 
-#define SECS_TO_WAIT            3   // soon to be deleted...
-
 
 extern Configuration            Config;
-extern uint32_t                 lastRxTime;
 extern String                   fourthLine;
 extern bool                     shouldSleepLowVoltage;
 
-uint32_t lastTxTime             = millis();
 std::vector<LastHeardStation>   lastHeardStations;
 std::vector<String>             blacklist;
 std::vector<String>             managers;
@@ -214,15 +210,11 @@ namespace STATION_Utils {
     }
 
     void processOutputPacketBuffer() {
-        int timeToWait                  = SECS_TO_WAIT * 1000;          // 3 segs between packet Tx and also Rx ???
-        uint32_t lastRx                 = millis() - lastRxTime;
-        uint32_t lastTx                 = millis() - lastTxTime;
-        if (outputPacketBuffer.size() > 0 && lastTx > timeToWait && lastRx > timeToWait) {
+        if (outputPacketBuffer.size() > 0) {
             if (outputPacketBuffer[0].isBeacon) packetIsBeacon = true;
             LoRa_Utils::sendNewPacket(outputPacketBuffer[0].packet);
             if (outputPacketBuffer[0].isBeacon) packetIsBeacon = false;
             outputPacketBuffer.erase(outputPacketBuffer.begin());
-            lastTxTime = millis();
         }
         if (shouldSleepLowVoltage) {
             while (outputPacketBuffer.size() > 0) {

src/web_utils.cpp

@@ -20,6 +20,7 @@
 #include "configuration.h"
 #include "ota_utils.h"
 #include "web_utils.h"
+#include "map_utils.h"
 #include "display.h"
 #include "utils.h"
 
@@ -114,6 +115,10 @@ namespace WEB_Utils {
         request->send(200, "application/json", buffer);
     }
 
+    void handleStations(AsyncWebServerRequest *request) {
+        request->send(200, "application/json", MAP_Utils::getStationsJson());
+    }
+
     void handleWriteConfiguration(AsyncWebServerRequest *request) {
         Serial.println("Got new Configuration Data from www");
 
@@ -213,6 +218,8 @@ namespace WEB_Utils {
         Config.loramodule.txCodingRate4     = getParamIntSafe("lora.txCodingRate4", Config.loramodule.txCodingRate4);
         Config.loramodule.txSignalBandwidth = getParamIntSafe("lora.txSignalBandwidth", Config.loramodule.txSignalBandwidth);
         Config.loramodule.power             = getParamIntSafe("lora.power", Config.loramodule.power);
+        if (Config.loramodule.txActive)
+            Config.loramodule.cadActive     = request->hasParam("lora.cadActive", true);
 
         Config.display.alwaysOn             = request->hasParam("display.alwaysOn", true);
         if (!Config.display.alwaysOn) {
@@ -361,6 +368,7 @@ namespace WEB_Utils {
             server.on("/", HTTP_GET, handleHome);
             server.on("/status", HTTP_GET, handleStatus);
             server.on("/received-packets.json", HTTP_GET, handleReceivedPackets);
+            server.on("/stations.json", HTTP_GET, handleStations);
             server.on("/configuration.json", HTTP_GET, handleReadConfiguration);
             server.on("/configuration.json", HTTP_POST, handleWriteConfiguration);
             server.on("/action", HTTP_POST, handleAction);

variants/RPC_LORA_DIGIGATE_1W/board_pinout.h

@@ -0,0 +1,56 @@
+/* Copyright (C) 2025 Ricardo Guzman - CA2RXU
+ *
+ * This file is part of LoRa APRS iGate.
+ *
+ * LoRa APRS iGate is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LoRa APRS iGate is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LoRa APRS iGate. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef BOARD_PINOUT_H_
+#define BOARD_PINOUT_H_
+
+    //  LoRa Radio
+    #define HAS_SX1268
+    #define HAS_1W_LORA
+    #define HAS_TCXO
+    #define RADIO_SCLK_PIN          18
+    #define RADIO_MISO_PIN          19
+    #define RADIO_MOSI_PIN          23
+    #define RADIO_CS_PIN            5
+    #define RADIO_RST_PIN           27
+    #define RADIO_DIO1_PIN          12
+    #define RADIO_BUSY_PIN          14
+    #define RADIO_RXEN              32
+    #define RADIO_TXEN              25
+    #define RADIO_WAKEUP_PIN        RADIO_DIO1_PIN
+    #define GPIO_WAKEUP_PIN         GPIO_SEL_12
+
+    //  I2C
+    #define USE_WIRE_WITH_OLED_PINS
+
+    //  Display
+    #define HAS_DISPLAY
+
+    #undef  OLED_SDA
+    #undef  OLED_SCL
+    #undef  OLED_RST
+
+    #define OLED_SDA                21
+    #define OLED_SCL                22
+    #define OLED_RST                -1      // Reset pin # (or -1 if sharing Arduino reset pin)
+
+    //  Aditional Config
+    #define INTERNAL_LED_PIN        2
+    #define BATTERY_PIN             35
+
+#endif

variants/RPC_LORA_DIGIGATE_1W/platformio.ini

@@ -0,0 +1,11 @@
+[env:RPC_LORA_DIGIGATE_1W]
+board = esp32dev
+build_flags =
+	${common.build_flags}
+	-D RADIOLIB_EXCLUDE_LR11X0=1
+	-D RADIOLIB_EXCLUDE_SX127X=1
+	-D RADIOLIB_EXCLUDE_SX128X=1
+	-D RPC_LORA_DIGIGATE_1W
+lib_deps =
+	${common.lib_deps}
+	${common.display_libs}