date update

data/igate_conf.json

@@ -47,8 +47,8 @@
         "rxSignalBandwidth": 125000,
         "txActive": false,
         "txFreq": 433775000,
-        "txSpreadingFactor": 9,
-        "txCodingRate4": 7,
+        "txSpreadingFactor": 12,
+        "txCodingRate4": 5,
         "txSignalBandwidth": 125000,
         "power": 20,
         "cadActive": true

data_embed/index.html

@@ -1313,10 +1313,10 @@ body{background:var(--msh-bg);color:var(--msh-text);font-family:"Inter",system-u
                                             <option value="6">SF6</option>
                                             <option value="7">SF7</option>
                                             <option value="8">SF8</option>
-                                            <option value="9" selected>SF9</option>
+                                            <option value="9">SF9</option>
                                             <option value="10">SF10</option>
                                             <option value="11">SF11</option>
-                                            <option value="12">SF12 - Highest sensitivity</option>
+                                            <option value="12" selected>SF12 - Highest sensitivity</option>
                                         </select>
                                     </div>
                                     <div class="col-6 mt-3">
@@ -1335,10 +1335,10 @@ body{background:var(--msh-bg);color:var(--msh-text);font-family:"Inter",system-u
                                             <option value="6">SF6</option>
                                             <option value="7">SF7</option>
                                             <option value="8">SF8</option>
-                                            <option value="9" selected>SF9</option>
+                                            <option value="9">SF9</option>
                                             <option value="10">SF10</option>
                                             <option value="11">SF11</option>
-                                            <option value="12">SF12 - Highest sensitivity</option>
+                                            <option value="12" selected>SF12 - Highest sensitivity</option>
                                         </select>
                                     </div>
                                     <div class="col-6 mt-3">
@@ -1353,9 +1353,9 @@ body{background:var(--msh-bg);color:var(--msh-text);font-family:"Inter",system-u
                                             id="lora.rxCodingRate4"
                                             required=""
                                         >
-                                            <option value="5">5</option>
+                                            <option value="5" selected>5</option>
                                             <option value="6">6</option>
-                                            <option value="7" selected>7</option>
+                                            <option value="7">7</option>
                                             <option value="8">8</option>
                                         </select>
                                     </div>
@@ -1371,9 +1371,9 @@ body{background:var(--msh-bg);color:var(--msh-text);font-family:"Inter",system-u
                                             id="lora.txCodingRate4"
                                             required=""
                                         >
-                                            <option value="5">5</option>
+                                            <option value="5" selected>5</option>
                                             <option value="6">6</option>
-                                            <option value="7" selected>7</option>
+                                            <option value="7">7</option>
                                             <option value="8">8</option>
                                         </select>
                                     </div>

include/thermal_utils.h

@@ -0,0 +1,41 @@
+/* Copyright (C) 2026 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/>.
+ */
+
+// Fan / thermal control adapted from KJ7NYE's LoRa_FieldOps_APRS_Tracker (GPLv3)
+
+#ifndef THERMAL_UTILS_H_
+#define THERMAL_UTILS_H_
+
+#include "board_pinout.h"
+
+#ifdef FAN_CTRL_PIN
+
+namespace THERMAL_Utils {
+
+    void    setup();
+    void    monitor();
+    void    onTxStart();
+    void    onTxEnd();
+    void    turnOffFan();
+    bool    isTxBlocked();
+
+}
+
+#endif
+
+#endif

src/LoRa_APRS_iGate.cpp

@@ -52,6 +52,7 @@ ___________________________________________________________________*/
 #include "syslog_utils.h"
 #include "power_utils.h"
 #include "sleep_utils.h"
+#include "thermal_utils.h"
 #include "mqtt_utils.h"
 #include "lora_utils.h"
 #include "wifi_utils.h"
@@ -68,8 +69,8 @@ ___________________________________________________________________*/
 #endif
 
 
-String              versionDate             = "2026-10-05";
-String              versionNumber           = "4.0.3";
+String              versionDate             = "2026-10-14";
+String              versionNumber           = "4.0.4";
 Configuration       Config;
 WiFiClient          aprsIsClient;
 WiFiClient          mqttClient;
@@ -108,6 +109,9 @@ void setup() {
     }
     networkManager->setHostName("iGATE-" + Config.callsign);
     POWER_Utils::setup();
+    #ifdef FAN_CTRL_PIN
+        THERMAL_Utils::setup();
+    #endif
     Utils::setupDisplay();
     LoRa_Utils::setup();
     Utils::validateFreqs();
@@ -135,6 +139,9 @@ void loop() {
         SLEEP_Utils::checkWakeUpFlag();
         Utils::checkBeaconInterval();
         STATION_Utils::processOutputPacketBufferUltraEcoMode();
+        #ifdef FAN_CTRL_PIN
+            THERMAL_Utils::monitor();
+        #endif
         Utils::checkSleepByLowBatteryVoltage(1);
         SLEEP_Utils::startSleeping();
     } else {
@@ -222,6 +229,9 @@ void loop() {
             displayShow(firstLine, secondLine, thirdLine, fourthLine, fifthLine, sixthLine, seventhLine, 0);
         #endif
 
+        #ifdef FAN_CTRL_PIN
+            THERMAL_Utils::monitor();
+        #endif
         Utils::checkRebootTime();
         Utils::checkSleepByLowBatteryVoltage(1);
     }

src/lora_utils.cpp

@@ -28,6 +28,7 @@
 #include "ntp_utils.h"
 #include "display.h"
 #include "utils.h"
+#include "thermal_utils.h"
 
 
 extern Configuration    Config;
@@ -107,9 +108,11 @@ namespace LoRa_Utils {
     }
 
     void setup() {
+        #ifdef RADIO_VCC_PIN        // LoRa module power switch (QRP Labs LightGateway, T-Beam 1W)
+            pinMode(RADIO_VCC_PIN, OUTPUT);
+            digitalWrite(RADIO_VCC_PIN, HIGH);
+        #endif
         #if defined (LIGHTGATEWAY_1_0) || defined(LIGHTGATEWAY_PLUS_1_0)
-            pinMode(RADIO_VCC_PIN,OUTPUT);
-            digitalWrite(RADIO_VCC_PIN,HIGH);
             loraSPI.begin(RADIO_SCLK_PIN, RADIO_MISO_PIN, RADIO_MOSI_PIN, RADIO_CS_PIN);
         #else
             SPI.begin(RADIO_SCLK_PIN, RADIO_MISO_PIN, RADIO_MOSI_PIN);
@@ -124,6 +127,8 @@ namespace LoRa_Utils {
         #endif
         #if (defined(RADIO_RXEN) && defined(RADIO_TXEN))    // before begin() so RF switch is driven from start (Ebyte E22/E32 1W, QRP Labs LightGateway)
             radio.setRfSwitchPins(RADIO_RXEN, RADIO_TXEN);
+        #elif defined(RADIO_RXEN)                           // T-Beam 1W: RXEN = LNA only, DIO2 drives the PA
+            radio.setRfSwitchPins(RADIO_RXEN, RADIOLIB_NC);
         #endif
         int state = radio.begin(freq);
         if (state != RADIOLIB_ERR_NONE) {
@@ -152,11 +157,6 @@ namespace LoRa_Utils {
         radio.setBandwidth(signalBandwidth);
         radio.setCRC(true);
 
-        /*#ifdef SX126X_DIO2_AS_RF_SWITCH
-        radio.setRfSwitchPins(RADIO_RXEN, RADIOLIB_NC);
-        radio.setDio2AsRfSwitch(true);
-        #endif*/
-
         int power = validPower(Config.loramodule.power);
         if (power != Config.loramodule.power) {
             Utils::println("LoRa power adjusted: " + String(Config.loramodule.power) + " -> " + String(power));
@@ -178,6 +178,10 @@ namespace LoRa_Utils {
         #if defined(HAS_TCXO) && !defined(HAS_1W_LORA)
             radio.setDio2AsRfSwitch();
         #endif
+        #if defined(TTGO_T_BEAM_1W)
+            radio.setDio2AsRfSwitch(true);                          // DIO2 drives the 1W PA
+            radio.setPaRampTime(RADIOLIB_SX126X_PA_RAMP_800U);      // PA needs >800us to settle (default 200us)
+        #endif
         #ifdef HAS_TCXO
             radio.setTCXO(1.8);
         #endif
@@ -239,6 +243,12 @@ namespace LoRa_Utils {
 
     void sendNewPacket(const String& newPacket) {
         if (!Config.loramodule.txActive) return;
+        #ifdef FAN_CTRL_PIN
+            if (THERMAL_Utils::isTxBlocked()) {
+                Utils::println("Thermal: Tx blocked (over-temperature), packet dropped: " + newPacket);
+                return;
+            }
+        #endif
 
         if (Config.loramodule.txFreq != Config.loramodule.rxFreq) {
             if (!packetIsBeacon || (packetIsBeacon && Config.beacon.beaconFreq == 1)) {
@@ -262,7 +272,13 @@ namespace LoRa_Utils {
         }
 
         if (!cadDropped) {
+            #ifdef FAN_CTRL_PIN
+                THERMAL_Utils::onTxStart();
+            #endif
             int state = radio.transmit("\x3c\xff\x01" + newPacket);
+            #ifdef FAN_CTRL_PIN
+                THERMAL_Utils::onTxEnd();
+            #endif
             transmitFlag = true;
             if (state == RADIOLIB_ERR_NONE) {
                 if (Config.syslog.active && networkManager->isConnected()) {

src/power_utils.cpp

@@ -66,7 +66,7 @@ namespace POWER_Utils {
         }
 
         void vext_ctrl_OFF() {
-            digitalWrite(VEXT_CTRL_PIN, Config.digi.ecoMode == 1 ? VEXT_CTRL_ON_STATE : !VEXT_CTRL_ON_STATE);
+            digitalWrite(VEXT_CTRL_PIN, !VEXT_CTRL_ON_STATE);       // always off, regardless of ecoMode
         }
     #endif
 
@@ -111,9 +111,7 @@ namespace POWER_Utils {
                 PMU.enableALDO3();
             #endif
         #endif
-        #ifdef HELTEC_WIRELESS_TRACKER
-            adc_ctrl_ON();
-        #endif
+        // HELTEC_WIRELESS_TRACKER: GPS shares Vext (GPIO3) with the TFT, so it follows the display power (not controlled here)
         //gpsIsActive = true;
     }
 
@@ -129,9 +127,7 @@ namespace POWER_Utils {
                 PMU.disableALDO3();
             #endif
         #endif
-        #ifdef HELTEC_WIRELESS_TRACKER
-            adc_ctrl_OFF();
-        #endif
+        // HELTEC_WIRELESS_TRACKER: GPS shares Vext with the TFT, turned off with it (see activateGPS)
         //gpsIsActive = false;
     }
 
@@ -199,7 +195,10 @@ namespace POWER_Utils {
                 PMU.setDC1Voltage(3300);
                 PMU.enableDC1();
                 #ifdef TTGO_T_Beam_S3_SUPREME_V3
-                    PMU.setALDO1Voltage(3300);
+                    PMU.setALDO1Voltage(3300);      // BME280, QMC6310, QMI8658, OLED
+                    PMU.enableALDO1();
+                    PMU.setALDO2Voltage(3300);      // sensors/OLED I2C + RTC PCF8563 (must stay on)
+                    PMU.enableALDO2();
                 #endif
                 PMU.setButtonBatteryChargeVoltage(3300);
                 PMU.enableButtonBatteryCharge();

src/sleep_utils.cpp

@@ -21,6 +21,7 @@
 #include "sleep_utils.h"
 #include "digi_utils.h"
 #include "lora_utils.h"
+#include "thermal_utils.h"
 
 
 extern  Configuration   Config;
@@ -75,6 +76,9 @@ namespace SLEEP_Utils {
             Serial.print("(Sleeping : "); Serial.print(timeToSleep); Serial.println("seconds)");
             delay(100);
             LoRa_Utils::wakeRadio();
+            #ifdef FAN_CTRL_PIN
+                THERMAL_Utils::turnOffFan();     // GPIOs keep their level in light sleep
+            #endif
             esp_light_sleep_start();
         }
     }

src/thermal_utils.cpp

@@ -0,0 +1,154 @@
+/* Copyright (C) 2026 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/>.
+ */
+
+// Fan / thermal control adapted from KJ7NYE's LoRa_FieldOps_APRS_Tracker (GPLv3)
+// NTC circuit (T-Beam 1W V1.0 schematic): 3V3 -> NCP18XH103F03RB -> TEMP_PIN -> 10K -> GND
+
+#include "board_pinout.h"
+
+#ifdef FAN_CTRL_PIN
+
+#include <Arduino.h>
+#include <math.h>
+#include "thermal_utils.h"
+#include "utils.h"
+
+#define NTC_B               3380.0f     // B25/50 (K)
+#define NTC_R25             10000.0f    // NTC resistance at 25C (ohm)
+#define NTC_T0              298.15f     // 25C in Kelvin
+#define NTC_R_FIXED         10000.0f    // pull-down resistor (ohm)
+#define NTC_VCC_MV          3300.0f
+#define NTC_MIN_VALID_MV    100         // below this the sample is a failed ADC2 read (100mV = ~-45C)
+
+#define FAN_ON_TEMP         50.0f       // fan on at or above
+#define FAN_OFF_TEMP        42.0f       // fan off below (hysteresis)
+#define TEMP_WARNING        75.0f
+#define TEMP_TX_BLOCK       85.0f       // Tx blocked at or above
+#define TEMP_TX_UNBLOCK     75.0f       // Tx allowed again below (hysteresis)
+#define TX_COOLDOWN_MS      30000       // fan kept on after TX
+#define TEMP_SAMPLE_MS      30000
+
+static float       currentTemperature  = 25.0f;
+static bool        fanOn               = false;
+static bool        txBlocked           = false;
+static bool        txCooldownActive    = false;
+static uint32_t    txEndTime           = 0;
+static uint32_t    lastTempSample      = 0;
+static bool        firstTempSample     = true;
+
+
+namespace THERMAL_Utils {
+
+    float readTemperature() {       // TEMP_PIN is on ADC2: reads fail (return 0) while Wi-Fi holds the ADC2 arbiter
+        analogReadMilliVolts(TEMP_PIN);     // dummy read to settle the ADC
+        delay(1);
+        uint32_t sum = 0;
+        int validSamples = 0;
+        for (int i = 0; i < 5; i++) {
+            uint32_t sample = analogReadMilliVolts(TEMP_PIN);
+            if (sample > NTC_MIN_VALID_MV) {
+                sum += sample;
+                validSamples++;
+            }
+            delay(3);
+        }
+        if (validSamples == 0) return NAN;
+        float mv = (float)sum / validSamples;
+        if (mv >= NTC_VCC_MV) return NAN;
+        float ntcResistance = NTC_R_FIXED * (NTC_VCC_MV - mv) / mv;
+        float kelvin = 1.0f / (1.0f / NTC_T0 + (1.0f / NTC_B) * logf(ntcResistance / NTC_R25));
+        return kelvin - 273.15f;
+    }
+
+    void setFan(bool on, const String& reason) {
+        if (fanOn == on) return;
+        fanOn = on;
+        digitalWrite(FAN_CTRL_PIN, on ? HIGH : LOW);
+        Utils::println("Thermal: Fan " + String(on ? "ON" : "OFF") + " (" + reason + ", " + String(currentTemperature, 1) + " C)");
+    }
+
+    void updateFan() {
+        if (!fanOn) {
+            if (txCooldownActive) {
+                setFan(true, "TX cooldown");
+            } else if (currentTemperature >= FAN_ON_TEMP) {
+                setFan(true, "temperature");
+            }
+        } else if (!txCooldownActive && currentTemperature < FAN_OFF_TEMP) {
+            setFan(false, "cooled down");
+        }
+    }
+
+    void setup() {
+        pinMode(TEMP_PIN, INPUT);
+        analogSetPinAttenuation(TEMP_PIN, ADC_11db);
+        pinMode(FAN_CTRL_PIN, OUTPUT);
+        digitalWrite(FAN_CTRL_PIN, LOW);
+        fanOn           = false;
+        firstTempSample = true;     // first monitor() call samples immediately
+    }
+
+    void monitor() {
+        uint32_t now = millis();
+
+        if (txCooldownActive && (now - txEndTime >= TX_COOLDOWN_MS)) {
+            txCooldownActive = false;
+            updateFan();
+        }
+
+        if (!firstTempSample && (now - lastTempSample < TEMP_SAMPLE_MS)) return;
+        firstTempSample = false;
+        lastTempSample  = now;
+
+        float temperature = readTemperature();
+        if (!isnan(temperature)) currentTemperature = temperature;
+
+        if (!txBlocked && currentTemperature >= TEMP_TX_BLOCK) {
+            txBlocked = true;
+            Utils::println("Thermal: Over-temperature at " + String(currentTemperature, 1) + " C, Tx blocked");
+        } else if (txBlocked && currentTemperature < TEMP_TX_UNBLOCK) {
+            txBlocked = false;
+            Utils::println("Thermal: Temperature back to " + String(currentTemperature, 1) + " C, Tx allowed");
+        } else if (!txBlocked && currentTemperature >= TEMP_WARNING) {
+            Utils::println("Thermal: High temperature: " + String(currentTemperature, 1) + " C");
+        }
+        updateFan();
+    }
+
+    void onTxStart() {
+        txCooldownActive = false;
+        setFan(true, "TX");
+    }
+
+    void onTxEnd() {
+        txCooldownActive = true;
+        txEndTime        = millis();
+    }
+
+    void turnOffFan() {     // before sleeping: no Tx while asleep, so the PA doesn't heat up
+        txCooldownActive = false;
+        setFan(false, "sleep");
+    }
+
+    bool isTxBlocked() {
+        return txBlocked;
+    }
+
+}
+
+#endif

src/utils.cpp

@@ -27,6 +27,7 @@
 #include "board_pinout.h"
 #include "power_utils.h"
 #include "syslog_utils.h"
+#include "thermal_utils.h"
 #include "A7670_utils.h"
 #include "lora_utils.h"
 #include "wifi_utils.h"
@@ -433,9 +434,13 @@ namespace Utils {
                 displayToggle(false);
             }
             #ifdef VEXT_CTRL_PIN
-                digitalWrite(VEXT_CTRL_PIN, !VEXT_CTRL_ON_STATE);   // VEXT off before deep sleep (always, regardless of ecoMode)
+                POWER_Utils::vext_ctrl_OFF();       // VEXT off before deep sleep (always, regardless of ecoMode)
+            #endif
+            #ifdef FAN_CTRL_PIN
+                THERMAL_Utils::turnOffFan();
             #endif
             LoRa_Utils::sleepRadio();
+            POWER_Utils::deactivateGPS();       // GPS rail off (AXP boards), otherwise it keeps draining the low battery while sleeping
             #ifdef RADIO_VCC_PIN
                 digitalWrite(RADIO_VCC_PIN, LOW);   // cut LoRa module power (QRP Labs LightGateway) so it draws nothing while sleeping
             #endif

variants/ttgo-t-beam-1W/board_pinout.h

@@ -0,0 +1,65 @@
+/* Copyright (C) 2026 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_SX1262
+    #define HAS_1W_LORA
+    #define HAS_TCXO
+    #define RADIO_VCC_PIN           40      // (RADIO_LDO_EN_PIN) HIGH = turn on the radio, LOW = turns off the radio
+    #define RADIO_SCLK_PIN          13
+    #define RADIO_MISO_PIN          12
+    #define RADIO_MOSI_PIN          11
+    #define RADIO_CS_PIN            15
+    #define RADIO_RST_PIN           3
+    #define RADIO_DIO1_PIN          1
+    #define RADIO_BUSY_PIN          38
+    #define RADIO_RXEN              21      // (RADIO_CTRL_PIN) HIGH = LNA on (Rx), LOW = LNA off (Tx)
+    #define RADIO_WAKEUP_PIN        RADIO_DIO1_PIN
+    #define GPIO_WAKEUP_PIN         GPIO_SEL_1
+
+    //  I2C
+    #define USE_WIRE_WITH_OLED_PINS
+
+    //  Display
+    #define HAS_DISPLAY
+    #define HAS_SH1106
+
+    #undef  OLED_SDA
+    #undef  OLED_SCL
+    #undef  OLED_RST
+
+    #define OLED_SDA                8
+    #define OLED_SCL                9
+    #define OLED_RST                -1      // Reset pin # (or -1 if sharing Arduino reset pin)
+
+    //  Aditional Config
+    #define BATTERY_PIN             4
+    #define BATTERY_CELLS           2       // 7.4V 2S battery
+    #define BUTTON_PIN              0
+    #define TEMP_PIN                14      // NTC Temperature sensor
+    #define FAN_CTRL_PIN            41
+
+    //  GPS
+    #define HAS_GPS
+    #define GPS_RX                  6
+    #define GPS_TX                  5
+
+#endif

variants/ttgo-t-beam-1W/platformio.ini

@@ -0,0 +1,21 @@
+[env:ttgo-t-beam-1W]
+board = esp32-s3-devkitm-1
+board_build.mcu = esp32s3
+board_build.flash_size = 16MB
+board_build.flash_mode = qio
+board_build.arduino.memory_type = qio_opi
+board_upload.flash_size = 16MB
+board_upload.maximum_size = 16777216
+board_build.psram_type = opi
+build_flags =
+	${common.build_flags}
+	${common.usb_flags}
+	-D RADIOLIB_EXCLUDE_LR11X0=1
+	-D RADIOLIB_EXCLUDE_SX127X=1
+	-D RADIOLIB_EXCLUDE_SX128X=1
+	-D TTGO_T_BEAM_1W
+	-D BOARD_HAS_PSRAM
+lib_deps =
+	${common.lib_deps}
+	${common.display_libs}
+	adafruit/Adafruit SH110X @ 2.1.15