Add reply bot module with DM-only responses and rate limiting (#9456)

* Implement Meshtastic reply bot module with ping and status features

Adds a reply bot module that listens for /ping, /hello, and /test commands received via direct messages or broadcasts on the primary channel. The module always replies via direct message to the sender only, reporting hop count, RSSI, and SNR. Per-sender cooldowns are enforced to reduce network spam, and the module can be excluded at build time via a compile flag. Updates include the new module source files and required build configuration changes.

* Update ReplyBotModule.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/modules/ReplyBotModule.h

Match the existing MESHTASTIC_EXCLUDE_* guard pattern so the module is excluded by default.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/modules/ReplyBotModule.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Tidying up

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

bin/device-install.bat

@@ -156,8 +156,16 @@ IF %BPS_RESET% EQU 1 (
 SET "PROGNAME=!FILENAME:.factory.bin=!"
 CALL :LOG_MESSAGE DEBUG "Computed PROGNAME: !PROGNAME!"
 
-@REM Determine OTA filename based on MCU type (unified OTA format)
-SET "OTA_FILENAME=mt-!MCU!-ota.bin"
+IF "__!MCU!__" == "__esp32s3__" (
+    @REM We are working with ESP32-S3
+    SET "OTA_FILENAME=bleota-s3.bin"
+) ELSE IF "__!MCU!__" == "__esp32c3__" (
+    @REM We are working with ESP32-C3
+    SET "OTA_FILENAME=bleota-c3.bin"
+) ELSE (
+    @REM Everything else
+    SET "OTA_FILENAME=bleota.bin"
+)
 CALL :LOG_MESSAGE DEBUG "Set OTA_FILENAME to: !OTA_FILENAME!"
 
 @REM Set SPIFFS filename with "littlefs-" prefix.

bin/device-install.sh

@@ -131,8 +131,14 @@ if [[ -f "$FILENAME" && "$FILENAME" == *.factory.bin ]]; then
         exit 1
     fi
 
-    # Determine OTA filename based on MCU type (unified OTA format)
-    OTAFILE="mt-${MCU}-ota.bin"
+    # Determine OTA filename based on MCU type
+    if [ "$MCU" == "esp32s3" ]; then
+        OTAFILE=bleota-s3.bin
+    elif [ "$MCU" == "esp32c3" ]; then
+        OTAFILE=bleota-c3.bin
+    else
+        OTAFILE=bleota.bin
+    fi
 
     # Set SPIFFS filename with "littlefs-" prefix.
     SPIFFSFILE="littlefs-${PROGNAME/firmware-/}.bin"

platformio.ini

@@ -50,6 +50,7 @@ build_flags = -Wno-missing-field-initializers
 	-DRADIOLIB_EXCLUDE_APRS=1
 	-DRADIOLIB_EXCLUDE_LORAWAN=1
 	-DMESHTASTIC_EXCLUDE_DROPZONE=1
+	-DMESHTASTIC_EXCLUDE_REPLYBOT=1
 	-DMESHTASTIC_EXCLUDE_REMOTEHARDWARE=1
 	-DMESHTASTIC_EXCLUDE_HEALTH_TELEMETRY=1
 	-DMESHTASTIC_EXCLUDE_POWERSTRESS=1 ; exclude power stress test module from main firmware
@@ -144,7 +145,7 @@ lib_deps =
 	# renovate: datasource=custom.pio depName=Adafruit INA219 packageName=adafruit/library/Adafruit INA219
 	adafruit/Adafruit INA219@1.2.3
 	# renovate: datasource=custom.pio depName=Adafruit MPU6050 packageName=adafruit/library/Adafruit MPU6050
-	adafruit/Adafruit MPU6050@2.2.7
+	adafruit/Adafruit MPU6050@2.2.6
 	# renovate: datasource=custom.pio depName=Adafruit LIS3DH packageName=adafruit/library/Adafruit LIS3DH
 	adafruit/Adafruit LIS3DH@1.3.0
 	# renovate: datasource=custom.pio depName=Adafruit AHTX0 packageName=adafruit/library/Adafruit AHTX0

src/BluetoothStatus.h

@@ -89,22 +89,14 @@ class BluetoothStatus : public Status
             case ConnectionState::CONNECTED:
                 LOG_DEBUG("BluetoothStatus CONNECTED");
 #ifdef BLE_LED
-#ifdef BLE_LED_INVERTED
-                digitalWrite(BLE_LED, LOW);
-#else
-                digitalWrite(BLE_LED, HIGH);
-#endif
+                digitalWrite(BLE_LED, LED_STATE_ON);
 #endif
                 break;
 
             case ConnectionState::DISCONNECTED:
                 LOG_DEBUG("BluetoothStatus DISCONNECTED");
 #ifdef BLE_LED
-#ifdef BLE_LED_INVERTED
-                digitalWrite(BLE_LED, HIGH);
-#else
-                digitalWrite(BLE_LED, LOW);
-#endif
+                digitalWrite(BLE_LED, LED_STATE_OFF);
 #endif
                 break;
             }

src/Power.cpp

@@ -459,6 +459,8 @@ class AnalogBatteryLevel : public HasBatteryLevel
         }
         // if it's not HIGH - check the battery
 #endif
+        // If we have an EXT_PWR_DETECT pin and it indicates no external power, believe it.
+        return false;
 
 // technically speaking this should work for all(?) NRF52 boards
 // but needs testing across multiple devices. NRF52 USB would not even work if

src/gps/RTC.cpp

@@ -72,13 +72,11 @@ RTCSetResult readFromRTC()
 #elif defined(PCF8563_RTC) || defined(PCF85063_RTC)
 #if defined(PCF8563_RTC)
     if (rtc_found.address == PCF8563_RTC) {
-        SensorPCF8563 rtc;
 #elif defined(PCF85063_RTC)
     if (rtc_found.address == PCF85063_RTC) {
-        SensorPCF85063 rtc;
-
 #endif
         uint32_t now = millis();
+        SensorRtcHelper rtc;
 
 #if WIRE_INTERFACES_COUNT == 2
         rtc.begin(rtc_found.port == ScanI2C::I2CPort::WIRE1 ? Wire1 : Wire);
@@ -242,12 +240,10 @@ RTCSetResult perhapsSetRTC(RTCQuality q, const struct timeval *tv, bool forceUpd
 #elif defined(PCF8563_RTC) || defined(PCF85063_RTC)
 #if defined(PCF8563_RTC)
         if (rtc_found.address == PCF8563_RTC) {
-            SensorPCF8563 rtc;
 #elif defined(PCF85063_RTC)
         if (rtc_found.address == PCF85063_RTC) {
-            SensorPCF85063 rtc;
-
 #endif
+            SensorRtcHelper rtc;
 
 #if WIRE_INTERFACES_COUNT == 2
             rtc.begin(rtc_found.port == ScanI2C::I2CPort::WIRE1 ? Wire1 : Wire);

src/graphics/draw/MenuHandler.cpp

@@ -1498,7 +1498,6 @@ void menuHandler::nodeNameLengthMenu()
 
                                                        config.display.use_long_node_name = option.value;
                                                        saveUIConfig();
-                                                       service->reloadConfig(SEGMENT_CONFIG);
                                                        LOG_INFO("Setting names to %s", option.value ? "long" : "short");
                                                    });
 

src/graphics/draw/MessageRenderer.cpp

@@ -877,15 +877,15 @@ void drawTextMessageFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16
                 // Send Message (Right side)
                 display->drawRect(x1 + 2 - bubbleW, y1 - bubbleH, bubbleW, bubbleH);
                 // Top Right Corner
-                display->drawRect(x1, topY, 2, 1);
+                display->drawRect(x1 - 1, topY, 2, 1);
                 display->drawRect(x1, topY, 1, 2);
                 // Bottom Right Corner
                 display->drawRect(x1 - 1, bottomY - 2, 2, 1);
                 display->drawRect(x1, bottomY - 3, 1, 2);
                 // Knock the corners off to make a bubble
                 display->setColor(BLACK);
-                display->drawRect(x1 - bubbleW, topY - 1, 1, 1);
-                display->drawRect(x1 - bubbleW, bottomY - 1, 1, 1);
+                display->drawRect(x1 - bubbleW + 2, topY - 1, 1, 1);
+                display->drawRect(x1 - bubbleW + 2, bottomY - 1, 1, 1);
                 display->setColor(WHITE);
             } else {
                 // Received Message (Left Side)

src/graphics/niche/InkHUD/Applet.cpp

@@ -1,3 +1,5 @@
+#include "graphics/niche/InkHUD/Tile.h"
+#include <cstdint>
 #ifdef MESHTASTIC_INCLUDE_INKHUD
 
 #include "./Applet.h"
@@ -785,6 +787,16 @@ void InkHUD::Applet::drawHeader(std::string text)
         drawPixel(x, 0, BLACK);
         drawPixel(x, headerDivY, BLACK); // Dotted 50%
     }
+
+    // Dither near battery
+    if (settings->optionalFeatures.batteryIcon) {
+        constexpr uint16_t ditherSizePx = 4;
+        Tile *batteryTile = ((Applet *)inkhud->getSystemApplet("BatteryIcon"))->getTile();
+        const uint16_t batteryTileLeft = batteryTile->getLeft();
+        const uint16_t batteryTileTop = batteryTile->getTop();
+        const uint16_t batteryTileHeight = batteryTile->getHeight();
+        hatchRegion(batteryTileLeft - ditherSizePx, batteryTileTop, ditherSizePx, batteryTileHeight, 2, WHITE);
+    }
 }
 
 // Get the height of the standard applet header

src/graphics/niche/InkHUD/Applets/System/BatteryIcon/BatteryIconApplet.cpp

@@ -48,37 +48,27 @@ int InkHUD::BatteryIconApplet::onPowerStatusUpdate(const meshtastic::Status *sta
 
 void InkHUD::BatteryIconApplet::onRender(bool full)
 {
-    // Fill entire tile
-    // - size of icon controlled by size of tile
-    int16_t l = 0;
-    int16_t t = 0;
-    uint16_t w = width();
-    int16_t h = height();
-
-    // Clear the region beneath the tile
+    // Clear the region beneath the tile, including the border
     // Most applets are drawing onto an empty frame buffer and don't need to do this
     // We do need to do this with the battery though, as it is an "overlay"
-    fillRect(l, t, w, h, WHITE);
-
-    // Vertical centerline
-    const int16_t m = t + (h / 2);
+    fillRect(0, 0, width(), height(), WHITE);
 
     // =====================
     // Draw battery outline
     // =====================
 
     // Positive terminal "bump"
-    const int16_t &bumpL = l;
-    const uint16_t bumpH = h / 2;
-    const int16_t bumpT = m - (bumpH / 2);
     constexpr uint16_t bumpW = 2;
+    const int16_t &bumpL = 1;
+    const uint16_t bumpH = (height() - 2) / 2;
+    const int16_t bumpT = (1 + ((height() - 2) / 2)) - (bumpH / 2);
     fillRect(bumpL, bumpT, bumpW, bumpH, BLACK);
 
     // Main body of battery
-    const int16_t bodyL = bumpL + bumpW;
-    const int16_t &bodyT = t;
-    const int16_t &bodyH = h;
-    const int16_t bodyW = w - bumpW;
+    const int16_t bodyL = 1 + bumpW;
+    const int16_t &bodyT = 1;
+    const int16_t &bodyH = height() - 2;         // Handle top/bottom padding
+    const int16_t bodyW = (width() - 1) - bumpW; // Handle 1px left pad
     drawRect(bodyL, bodyT, bodyW, bodyH, BLACK);
 
     // Erase join between bump and body
@@ -89,12 +79,13 @@ void InkHUD::BatteryIconApplet::onRender(bool full)
     // ===================
 
     constexpr int16_t slicePad = 2;
-    const int16_t sliceL = bodyL + slicePad;
+    int16_t sliceL = bodyL + slicePad;
     const int16_t sliceT = bodyT + slicePad;
     const uint16_t sliceH = bodyH - (slicePad * 2);
     uint16_t sliceW = bodyW - (slicePad * 2);
 
-    sliceW = (sliceW * socRounded) / 100; // Apply percentage
+    sliceW = (sliceW * socRounded) / 100;          // Apply percentage
+    sliceL += ((bodyW - (slicePad * 2)) - sliceW); // Shift slice to the battery's negative terminal, correcting drain direction
 
     hatchRegion(sliceL, sliceT, sliceW, sliceH, 2, BLACK);
     drawRect(sliceL, sliceT, sliceW, sliceH, BLACK);

src/graphics/niche/InkHUD/WindowManager.cpp

@@ -510,10 +510,10 @@ void InkHUD::WindowManager::placeSystemTiles()
     const uint16_t batteryIconWidth = batteryIconHeight * 1.8;
     inkhud->getSystemApplet("BatteryIcon")
         ->getTile()
-        ->setRegion(inkhud->width() - batteryIconWidth, // x
-                    2,                                  // y
-                    batteryIconWidth,                   // width
-                    batteryIconHeight);                 // height
+        ->setRegion(inkhud->width() - batteryIconWidth - 1, // x
+                    1,                                      // y
+                    batteryIconWidth + 1,                   // width
+                    batteryIconHeight + 2);                 // height
 
     // Note: the tiles of placeholder and menu applets are manipulated specially
     // - menuApplet borrows user tiles

src/main.cpp

@@ -366,11 +366,7 @@ void setup()
 
 #ifdef BLE_LED
     pinMode(BLE_LED, OUTPUT);
-#ifdef BLE_LED_INVERTED
-    digitalWrite(BLE_LED, HIGH);
-#else
-    digitalWrite(BLE_LED, LOW);
-#endif
+    digitalWrite(BLE_LED, LED_STATE_OFF);
 #endif
 
     concurrency::hasBeenSetup = true;
@@ -493,7 +489,9 @@ void setup()
     // The ThinkNodes have their own blink logic
     // ledPeriodic = new Periodic("Blink", elecrowLedBlinker);
 #else
+
     ledPeriodic = new Periodic("Blink", ledBlinker);
+
 #endif
 
     fsInit();
@@ -834,7 +832,7 @@ void setup()
     SPI.begin();
 #endif
 #else
-// ESP32
+        // ESP32
 #if defined(HW_SPI1_DEVICE)
     SPI1.begin(LORA_SCK, LORA_MISO, LORA_MOSI, LORA_CS);
     LOG_DEBUG("SPI1.begin(SCK=%d, MISO=%d, MOSI=%d, NSS=%d)", LORA_SCK, LORA_MISO, LORA_MOSI, LORA_CS);

src/mesh/NodeDB.cpp

@@ -1404,6 +1404,15 @@ void NodeDB::loadFromDisk()
     if (portduino_config.has_configDisplayMode) {
         config.display.displaymode = (_meshtastic_Config_DisplayConfig_DisplayMode)portduino_config.configDisplayMode;
     }
+    if (portduino_config.has_statusMessage) {
+        moduleConfig.has_statusmessage = true;
+        strncpy(moduleConfig.statusmessage.node_status, portduino_config.statusMessage.c_str(),
+                sizeof(moduleConfig.statusmessage.node_status));
+        moduleConfig.statusmessage.node_status[sizeof(moduleConfig.statusmessage.node_status) - 1] = '\0';
+    }
+    if (portduino_config.enable_UDP) {
+        config.network.enabled_protocols = true;
+    }
 
 #endif
 }
@@ -1544,6 +1553,7 @@ bool NodeDB::saveToDiskNoRetry(int saveWhat)
         moduleConfig.has_ambient_lighting = true;
         moduleConfig.has_audio = true;
         moduleConfig.has_paxcounter = true;
+        moduleConfig.has_statusmessage = true;
 
         success &=
             saveProto(moduleConfigFileName, meshtastic_LocalModuleConfig_size, &meshtastic_LocalModuleConfig_msg, &moduleConfig);

src/modules/AdminModule.cpp

@@ -905,10 +905,11 @@ void AdminModule::handleSetConfig(const meshtastic_Config &c)
 
 bool AdminModule::handleSetModuleConfig(const meshtastic_ModuleConfig &c)
 {
+    bool shouldReboot = true;
     // If we are in an open transaction or configuring MQTT or Serial (which have validation), defer disabling Bluetooth
     // Otherwise, disable Bluetooth to prevent the phone from interfering with the config
-    if (!hasOpenEditTransaction &&
-        !IS_ONE_OF(c.which_payload_variant, meshtastic_ModuleConfig_mqtt_tag, meshtastic_ModuleConfig_serial_tag)) {
+    if (!hasOpenEditTransaction && !IS_ONE_OF(c.which_payload_variant, meshtastic_ModuleConfig_mqtt_tag,
+                                              meshtastic_ModuleConfig_serial_tag, meshtastic_ModuleConfig_statusmessage_tag)) {
         disableBluetooth();
     }
 
@@ -1000,8 +1001,14 @@ bool AdminModule::handleSetModuleConfig(const meshtastic_ModuleConfig &c)
         moduleConfig.has_paxcounter = true;
         moduleConfig.paxcounter = c.payload_variant.paxcounter;
         break;
+    case meshtastic_ModuleConfig_statusmessage_tag:
+        LOG_INFO("Set module config: StatusMessage");
+        moduleConfig.has_statusmessage = true;
+        moduleConfig.statusmessage = c.payload_variant.statusmessage;
+        shouldReboot = false;
+        break;
     }
-    saveChanges(SEGMENT_MODULECONFIG);
+    saveChanges(SEGMENT_MODULECONFIG, shouldReboot);
     return true;
 }
 
@@ -1180,6 +1187,11 @@ void AdminModule::handleGetModuleConfig(const meshtastic_MeshPacket &req, const
             res.get_module_config_response.which_payload_variant = meshtastic_ModuleConfig_paxcounter_tag;
             res.get_module_config_response.payload_variant.paxcounter = moduleConfig.paxcounter;
             break;
+        case meshtastic_AdminMessage_ModuleConfigType_STATUSMESSAGE_CONFIG:
+            LOG_INFO("Get module config: StatusMessage");
+            res.get_module_config_response.which_payload_variant = meshtastic_ModuleConfig_statusmessage_tag;
+            res.get_module_config_response.payload_variant.statusmessage = moduleConfig.statusmessage;
+            break;
         }
 
         // NOTE: The phone app needs to know the ls_secsvalue so it can properly expect sleep behavior.

src/modules/Modules.cpp

@@ -90,6 +90,9 @@
 #if !MESHTASTIC_EXCLUDE_DROPZONE
 #include "modules/DropzoneModule.h"
 #endif
+#if !MESHTASTIC_EXCLUDE_STATUS
+#include "modules/StatusMessageModule.h"
+#endif
 
 #if defined(HAS_HARDWARE_WATCHDOG)
 #include "watchdog/watchdogThread.h"
@@ -150,6 +153,9 @@ void setupModules()
 #if !MESHTASTIC_EXCLUDE_DROPZONE
     dropzoneModule = new DropzoneModule();
 #endif
+#if !MESHTASTIC_EXCLUDE_STATUS
+    statusMessageModule = new StatusMessageModule();
+#endif
 #if !MESHTASTIC_EXCLUDE_GENERIC_THREAD_MODULE
     new GenericThreadModule();
 #endif

src/modules/ReplyBotModule.cpp

@@ -0,0 +1,183 @@
+#if !MESHTASTIC_EXCLUDE_REPLYBOT
+/*
+ * ReplyBotModule.cpp
+ *
+ * This module implements a simple reply bot for the Meshtastic firmware.  It listens for
+ * specific text commands ("/ping", "/hello" and "/test") delivered either via a direct
+ * message (DM) or a broadcast on the primary channel.  When a supported command is
+ * received the bot responds with a short status message that includes the hop count
+ * (minimum number of relays), RSSI and SNR of the received packet.  To avoid spamming
+ * the network it enforces a per‑sender cooldown between responses.  By default the
+ * module is enabled; define MESHTASTIC_EXCLUDE_REPLYBOT at build time to exclude it
+ * entirely.  See the official firmware documentation for guidance on adding modules.
+ */
+
+#include "ReplyBotModule.h"
+#include "Channels.h"
+#include "MeshService.h"
+#include "NodeDB.h"
+#include "configuration.h"
+#include "mesh/MeshTypes.h"
+
+#include <Arduino.h>
+#include <cctype>
+#include <cstring>
+
+//
+// Rate limiting data structures
+//
+// Each sender is tracked in a small ring buffer.  When a message arrives from a
+// sender we check the last time we responded to them.  If the difference is
+// less than the configured cooldown (different values for DM vs broadcast)
+// the message is ignored; otherwise we update the last response time and
+// proceed with replying.
+
+struct ReplyBotCooldownEntry {
+    uint32_t from = 0;
+    uint32_t lastMs = 0;
+};
+
+static constexpr uint8_t REPLYBOT_COOLDOWN_SLOTS = 8;          // ring buffer size
+static constexpr uint32_t REPLYBOT_DM_COOLDOWN_MS = 15 * 1000; // 15 seconds for DMs
+static constexpr uint32_t REPLYBOT_LF_COOLDOWN_MS = 60 * 1000; // 60 seconds for LongFast broadcasts
+
+static ReplyBotCooldownEntry replybotCooldown[REPLYBOT_COOLDOWN_SLOTS];
+static uint8_t replybotCooldownIdx = 0;
+
+// Return true if a reply should be rate‑limited for this sender, updating the
+// entry table as needed.
+static bool replybotRateLimited(uint32_t from, uint32_t cooldownMs)
+{
+    const uint32_t now = millis();
+    for (auto &e : replybotCooldown) {
+        if (e.from == from) {
+            // Found existing entry; check if cooldown expired
+            if ((uint32_t)(now - e.lastMs) < cooldownMs) {
+                return true;
+            }
+            e.lastMs = now;
+            return false;
+        }
+    }
+    // No entry found – insert new sender into the ring
+    replybotCooldown[replybotCooldownIdx].from = from;
+    replybotCooldown[replybotCooldownIdx].lastMs = now;
+    replybotCooldownIdx = (replybotCooldownIdx + 1) % REPLYBOT_COOLDOWN_SLOTS;
+    return false;
+}
+
+// Constructor – registers a single text port and marks the module promiscuous
+// so that broadcast messages on the primary channel are visible.
+ReplyBotModule::ReplyBotModule() : SinglePortModule("replybot", meshtastic_PortNum_TEXT_MESSAGE_APP)
+{
+    isPromiscuous = true;
+}
+
+void ReplyBotModule::setup()
+{
+    // In future we may add a protobuf configuration; for now the module is
+    // always enabled when compiled in.
+}
+
+// Determine whether we want to process this packet.  We only care about
+// plain text messages addressed to our port.
+bool ReplyBotModule::wantPacket(const meshtastic_MeshPacket *p)
+{
+    return (p && p->decoded.portnum == ourPortNum);
+}
+
+ProcessMessage ReplyBotModule::handleReceived(const meshtastic_MeshPacket &mp)
+{
+    // Accept only direct messages to us or broadcasts on the Primary channel
+    // (regardless of modem preset: LongFast, MediumFast, etc).
+
+    const uint32_t ourNode = nodeDB->getNodeNum();
+    const bool isDM = (mp.to == ourNode);
+    const bool isPrimaryChannel = (mp.channel == channels.getPrimaryIndex()) && isBroadcast(mp.to);
+    if (!isDM && !isPrimaryChannel) {
+        return ProcessMessage::CONTINUE;
+    }
+
+    // Ignore empty payloads
+    if (mp.decoded.payload.size == 0) {
+        return ProcessMessage::CONTINUE;
+    }
+
+    // Copy payload into a null‑terminated buffer
+    char buf[260];
+    memset(buf, 0, sizeof(buf));
+    size_t n = mp.decoded.payload.size;
+    if (n > sizeof(buf) - 1)
+        n = sizeof(buf) - 1;
+    memcpy(buf, mp.decoded.payload.bytes, n);
+
+    // React only to supported slash commands
+    if (!isCommand(buf)) {
+        return ProcessMessage::CONTINUE;
+    }
+
+    // Apply rate limiting per sender depending on DM/broadcast
+    const uint32_t cooldownMs = isDM ? REPLYBOT_DM_COOLDOWN_MS : REPLYBOT_LF_COOLDOWN_MS;
+    if (replybotRateLimited(mp.from, cooldownMs)) {
+        return ProcessMessage::CONTINUE;
+    }
+
+    // Compute hop count indicator – if the relay_node is non‑zero we know
+    // there was at least one relay.  Some firmware builds support a hop_start
+    // field which could be used for more accurate counts, but here we use
+    // the available relay_node flag only.
+    // int hopsAway = mp.hop_start - mp.hop_limit;
+    int hopsAway = getHopsAway(mp);
+
+    // Normalize RSSI: if positive adjust down by 200 to align with typical values
+    int rssi = mp.rx_rssi;
+    if (rssi > 0) {
+        rssi -= 200;
+    }
+    float snr = mp.rx_snr;
+
+    // Build the reply message and send it back via DM
+    char reply[96];
+    snprintf(reply, sizeof(reply), "🎙️ Mic Check : %d Hops away | RSSI %d | SNR %.1f", hopsAway, rssi, snr);
+    sendDm(mp, reply);
+    return ProcessMessage::CONTINUE;
+}
+
+// Check if the message starts with one of the supported commands.  Leading
+// whitespace is skipped and commands must be followed by end‑of‑string or
+// whitespace.
+bool ReplyBotModule::isCommand(const char *msg) const
+{
+    if (!msg)
+        return false;
+    while (*msg == ' ' || *msg == '\t')
+        msg++;
+    auto isEndOrSpace = [](char c) { return c == '\0' || std::isspace(static_cast<unsigned char>(c)); };
+    if (strncmp(msg, "/ping", 5) == 0 && isEndOrSpace(msg[5]))
+        return true;
+    if (strncmp(msg, "/hello", 6) == 0 && isEndOrSpace(msg[6]))
+        return true;
+    if (strncmp(msg, "/test", 5) == 0 && isEndOrSpace(msg[5]))
+        return true;
+    return false;
+}
+
+// Send a direct message back to the originating node.
+void ReplyBotModule::sendDm(const meshtastic_MeshPacket &rx, const char *text)
+{
+    if (!text)
+        return;
+    meshtastic_MeshPacket *p = allocDataPacket();
+    p->to = rx.from;
+    p->channel = rx.channel;
+    p->want_ack = false;
+    p->decoded.want_response = false;
+    size_t len = strlen(text);
+    if (len > sizeof(p->decoded.payload.bytes)) {
+        len = sizeof(p->decoded.payload.bytes);
+    }
+    p->decoded.payload.size = len;
+    memcpy(p->decoded.payload.bytes, text, len);
+    service->sendToMesh(p);
+}
+#endif // MESHTASTIC_EXCLUDE_REPLYBOT

src/modules/ReplyBotModule.h

@@ -0,0 +1,18 @@
+#pragma once
+#if !MESHTASTIC_EXCLUDE_REPLYBOT
+#include "SinglePortModule.h"
+#include "mesh/generated/meshtastic/mesh.pb.h"
+
+class ReplyBotModule : public SinglePortModule
+{
+  public:
+    ReplyBotModule();
+    void setup() override;
+    bool wantPacket(const meshtastic_MeshPacket *p) override;
+    ProcessMessage handleReceived(const meshtastic_MeshPacket &mp) override;
+
+  protected:
+    bool isCommand(const char *msg) const;
+    void sendDm(const meshtastic_MeshPacket &rx, const char *text);
+};
+#endif // MESHTASTIC_EXCLUDE_REPLYBOT

src/modules/StatusMessageModule.cpp

@@ -0,0 +1,41 @@
+#if !MESHTASTIC_EXCLUDE_STATUS
+
+#include "StatusMessageModule.h"
+#include "MeshService.h"
+#include "ProtobufModule.h"
+
+StatusMessageModule *statusMessageModule;
+
+int32_t StatusMessageModule::runOnce()
+{
+    if (moduleConfig.has_statusmessage && moduleConfig.statusmessage.node_status[0] != '\0') {
+        // create and send message with the status message set
+        meshtastic_StatusMessage ourStatus = meshtastic_StatusMessage_init_zero;
+        strncpy(ourStatus.status, moduleConfig.statusmessage.node_status, sizeof(ourStatus.status));
+        ourStatus.status[sizeof(ourStatus.status) - 1] = '\0'; // ensure null termination
+        meshtastic_MeshPacket *p = allocDataPacket();
+        p->decoded.payload.size = pb_encode_to_bytes(p->decoded.payload.bytes, sizeof(p->decoded.payload.bytes),
+                                                     meshtastic_StatusMessage_fields, &ourStatus);
+        p->to = NODENUM_BROADCAST;
+        p->decoded.want_response = false;
+        p->priority = meshtastic_MeshPacket_Priority_BACKGROUND;
+        p->channel = 0;
+        service->sendToMesh(p);
+    }
+
+    return 1000 * 12 * 60 * 60;
+}
+
+ProcessMessage StatusMessageModule::handleReceived(const meshtastic_MeshPacket &mp)
+{
+    if (mp.which_payload_variant == meshtastic_MeshPacket_decoded_tag) {
+        meshtastic_StatusMessage incomingMessage;
+        if (pb_decode_from_bytes(mp.decoded.payload.bytes, mp.decoded.payload.size, meshtastic_StatusMessage_fields,
+                                 &incomingMessage)) {
+            LOG_INFO("Received a NodeStatus message %s", incomingMessage.status);
+        }
+    }
+    return ProcessMessage::CONTINUE;
+}
+
+#endif

src/modules/StatusMessageModule.h

@@ -0,0 +1,35 @@
+#pragma once
+#if !MESHTASTIC_EXCLUDE_STATUS
+#include "SinglePortModule.h"
+#include "configuration.h"
+
+class StatusMessageModule : public SinglePortModule, private concurrency::OSThread
+{
+
+  public:
+    /** Constructor
+     * name is for debugging output
+     */
+    StatusMessageModule()
+        : SinglePortModule("statusMessage", meshtastic_PortNum_NODE_STATUS_APP), concurrency::OSThread("StatusMessage")
+    {
+        if (moduleConfig.has_statusmessage && moduleConfig.statusmessage.node_status[0] != '\0') {
+            this->setInterval(2 * 60 * 1000);
+        } else {
+            this->setInterval(1000 * 12 * 60 * 60);
+        }
+        // TODO: If we have a string, set the initial delay (15 minutes maybe)
+    }
+
+    virtual int32_t runOnce() override;
+
+  protected:
+    /** Called to handle a particular incoming message
+     */
+    virtual ProcessMessage handleReceived(const meshtastic_MeshPacket &mp) override;
+
+  private:
+};
+
+extern StatusMessageModule *statusMessageModule;
+#endif

src/nimble/NimbleBluetooth.cpp

@@ -757,11 +757,7 @@ void NimbleBluetooth::deinit()
     isDeInit = true;
 
 #ifdef BLE_LED
-#ifdef BLE_LED_INVERTED
-    digitalWrite(BLE_LED, HIGH);
-#else
-    digitalWrite(BLE_LED, LOW);
-#endif
+    digitalWrite(BLE_LED, LED_STATE_OFF);
 #endif
 #ifndef NIMBLE_TWO
     NimBLEDevice::deinit();

src/platform/esp32/main-esp32.cpp

@@ -24,11 +24,6 @@
 #include <nvs.h>
 #include <nvs_flash.h>
 
-// Weak empty variant shutdown prep function.
-// May be redefined by variant files.
-void variant_shutdown() __attribute__((weak));
-void variant_shutdown() {}
-
 #if !defined(CONFIG_IDF_TARGET_ESP32S2) && !MESHTASTIC_EXCLUDE_BLUETOOTH
 void setBluetoothEnable(bool enable)
 {
@@ -254,7 +249,6 @@ void cpuDeepSleep(uint32_t msecToWake)
 
 #endif // #end ESP32S3_WAKE_TYPE
 #endif
-    variant_shutdown();
 
     // We want RTC peripherals to stay on
     esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);

src/platform/nrf52/main-nrf52.cpp

@@ -46,7 +46,7 @@
 
 uint16_t getVDDVoltage();
 
-// Weak empty variant shutdown prep function.
+// Weak empty variant initialization function.
 // May be redefined by variant files.
 void variant_shutdown() __attribute__((weak));
 void variant_shutdown() {}

src/platform/portduino/PortduinoGlue.cpp

@@ -872,6 +872,7 @@ bool loadConfig(const char *configPath)
         }
 
         if (yamlConfig["Config"]) {
+            portduino_config.has_config_overrides = true;
             if (yamlConfig["Config"]["DisplayMode"]) {
                 portduino_config.has_configDisplayMode = true;
                 if ((yamlConfig["Config"]["DisplayMode"]).as<std::string>("") == "TWOCOLOR") {
@@ -884,6 +885,13 @@ bool loadConfig(const char *configPath)
                     portduino_config.configDisplayMode = meshtastic_Config_DisplayConfig_DisplayMode_DEFAULT;
                 }
             }
+            if (yamlConfig["Config"]["StatusMessage"]) {
+                portduino_config.has_statusMessage = true;
+                portduino_config.statusMessage = (yamlConfig["Config"]["StatusMessage"]).as<std::string>("");
+            }
+            if ((yamlConfig["Config"]["EnableUDP"]).as<bool>(false)) {
+                portduino_config.enable_UDP = true;
+            }
         }
 
         if (yamlConfig["General"]) {

src/platform/portduino/PortduinoGlue.h

@@ -177,8 +177,12 @@ extern struct portduino_config_struct {
     int hostMetrics_channel = 0;
 
     // config
+    bool has_config_overrides = false;
     int configDisplayMode = 0;
     bool has_configDisplayMode = false;
+    std::string statusMessage = "";
+    bool has_statusMessage = false;
+    bool enable_UDP = false;
 
     // General
     std::string mac_address = "";
@@ -505,21 +509,30 @@ extern struct portduino_config_struct {
         }
 
         // config
-        if (has_configDisplayMode) {
+        if (has_config_overrides) {
             out << YAML::Key << "Config" << YAML::Value << YAML::BeginMap;
-            switch (configDisplayMode) {
-            case meshtastic_Config_DisplayConfig_DisplayMode_TWOCOLOR:
-                out << YAML::Key << "DisplayMode" << YAML::Value << "TWOCOLOR";
-                break;
-            case meshtastic_Config_DisplayConfig_DisplayMode_INVERTED:
-                out << YAML::Key << "DisplayMode" << YAML::Value << "INVERTED";
-                break;
-            case meshtastic_Config_DisplayConfig_DisplayMode_COLOR:
-                out << YAML::Key << "DisplayMode" << YAML::Value << "COLOR";
-                break;
-            case meshtastic_Config_DisplayConfig_DisplayMode_DEFAULT:
-                out << YAML::Key << "DisplayMode" << YAML::Value << "DEFAULT";
-                break;
+            if (has_configDisplayMode) {
+
+                switch (configDisplayMode) {
+                case meshtastic_Config_DisplayConfig_DisplayMode_TWOCOLOR:
+                    out << YAML::Key << "DisplayMode" << YAML::Value << "TWOCOLOR";
+                    break;
+                case meshtastic_Config_DisplayConfig_DisplayMode_INVERTED:
+                    out << YAML::Key << "DisplayMode" << YAML::Value << "INVERTED";
+                    break;
+                case meshtastic_Config_DisplayConfig_DisplayMode_COLOR:
+                    out << YAML::Key << "DisplayMode" << YAML::Value << "COLOR";
+                    break;
+                case meshtastic_Config_DisplayConfig_DisplayMode_DEFAULT:
+                    out << YAML::Key << "DisplayMode" << YAML::Value << "DEFAULT";
+                    break;
+                }
+            }
+            if (has_statusMessage) {
+                out << YAML::Key << "StatusMessage" << YAML::Value << statusMessage;
+            }
+            if (enable_UDP) {
+                out << YAML::Key << "EnableUDP" << YAML::Value << true;
             }
 
             out << YAML::EndMap; // Config

variants/esp32/wiphone/variant.h

@@ -26,7 +26,6 @@
 #undef GPS_TX_PIN
 #define NO_GPS 1
 #define HAS_GPS 0
-#define NO_SCREEN
 #define HAS_SCREEN 0
 
 // Default SPI1 will be mapped to the display

variants/esp32s3/ELECROW-ThinkNode-M5/platformio.ini

@@ -34,5 +34,3 @@ lib_deps = ${esp32s3_base.lib_deps}
   https://github.com/meshtastic/GxEPD2/archive/a05c11c02862624266b61599b0d6ba93e33c6f24.zip
   # renovate: datasource=custom.pio depName=PCA9557-arduino packageName=maxpromer/library/PCA9557-arduino
   maxpromer/PCA9557-arduino@1.0.0
-  # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
-  lewisxhe/SensorLib@0.3.4

variants/esp32s3/ELECROW-ThinkNode-M5/variant.cpp

@@ -1,17 +1,12 @@
 #include "variant.h"
 #include <PCA9557.h>
 
-PCA9557 io(0x18, &Wire1);
+PCA9557 io(0x18, &Wire);
 
 void earlyInitVariant()
 {
-    Wire1.begin(48, 47);
+    Wire.begin(48, 47);
     io.pinMode(PCA_PIN_EINK_EN, OUTPUT);
     io.pinMode(PCA_PIN_POWER_EN, OUTPUT);
     io.digitalWrite(PCA_PIN_POWER_EN, HIGH);
 }
-
-void variant_shutdown()
-{
-    io.digitalWrite(PCA_PIN_POWER_EN, LOW);
-}

variants/esp32s3/ELECROW-ThinkNode-M5/variant.h

@@ -30,9 +30,6 @@
 #define I2C_SCL 1
 #define I2C_SDA 2
 
-// PCF8563 RTC Module
-#define PCF8563_RTC 0x51
-
 // GPS pins
 #define GPS_SWITH 10
 #define HAS_GPS 1

variants/esp32s3/esp32-s3-pico/variant.h

@@ -8,7 +8,6 @@
 #define EXT_NOTIFY_OUT 22
 #define BUTTON_PIN 0 // 17
 
-// #define LED_PIN PIN_LED
 // Board has RGB LED 21
 #define HAS_NEOPIXEL                         // Enable the use of neopixels
 #define NEOPIXEL_COUNT 1                     // How many neopixels are connected

variants/nrf52840/ELECROW-ThinkNode-M3/platformio.ini

@@ -24,5 +24,5 @@ lib_deps =
   ${nrf52840_base.lib_deps}
   # renovate: datasource=custom.pio depName=nRF52_PWM packageName=khoih-prog/library/nRF52_PWM
   khoih-prog/nRF52_PWM@1.0.1
-  # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
+  ; # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
   lewisxhe/SensorLib@0.3.4

variants/nrf52840/ELECROW-ThinkNode-M3/variant.h

@@ -116,6 +116,7 @@ extern "C" {
 
 // PCF8563 RTC Module
 #define PCF8563_RTC 0x51
+#define HAS_RTC 1
 
 #ifdef __cplusplus
 }

variants/nrf52840/ELECROW-ThinkNode-M6/platformio.ini

@@ -21,5 +21,5 @@ build_flags = ${nrf52840_base.build_flags}
 build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/ELECROW-ThinkNode-M6>
 lib_deps =
   ${nrf52840_base.lib_deps}
-  # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
+  ; # renovate: datasource=custom.pio depName=SensorLib packageName=lewisxhe/library/SensorLib
   lewisxhe/SensorLib@0.3.4

variants/nrf52840/ELECROW-ThinkNode-M6/variant.h

@@ -121,6 +121,7 @@ static const uint8_t A0 = PIN_A0;
 
 // PCF8563 RTC Module
 #define PCF8563_RTC 0x51
+#define HAS_RTC 1
 
 // SPI
 #define SPI_INTERFACES_COUNT 1

variants/nrf52840/diy/seeed-xiao-nrf52840-wio-sx1262/variant.h

@@ -35,8 +35,6 @@ extern "C" {
 #define PIN_LED2 LED_BLUE
 #define PIN_LED3 LED_RED
 
-#define PIN_LED PIN_LED1
-
 #define LED_STATE_ON 1 // State when LED is lit
 
 // XIAO Wio-SX1262 Shield User button

variants/nrf52840/t-echo-lite/variant.h

@@ -51,7 +51,6 @@ extern "C" {
 #define LED_GREEN PIN_LED1
 
 #define BLE_LED LED_BLUE
-#define BLE_LED_INVERTED 1
 #define LED_STATE_ON 0 // State when LED is lit
 
 // Buttons

variants/nrf52840/t-echo-plus/variant.h

@@ -132,6 +132,9 @@ static const uint8_t A0 = PIN_A0;
 
 #define HAS_DRV2605 1
 
+// Battery / ADC already defined above
+#define HAS_RTC 1
+
 #define SERIAL_PRINT_PORT 0
 
 #ifdef __cplusplus

variants/rp2040/challenger_2040_lora/pins_arduino.h

@@ -7,7 +7,7 @@
 #define ADC_RESOLUTION (12u)
 
 // LEDs
-#define PIN_LED (24u)
+#define LED_PIN (24u)
 
 // Serial
 #define PIN_SERIAL1_TX (16u)

variants/rp2040/challenger_2040_lora/variant.h

@@ -5,8 +5,6 @@
 #define EXT_NOTIFY_OUT 0xFFFFFFFF
 #define BUTTON_PIN 0xFFFFFFFF
 
-#define LED_PIN PIN_LED
-
 #define USE_RF95 // RFM95/SX127x
 
 #undef LORA_SCK

variants/rp2040/rak11310/pins_arduino.h

@@ -23,8 +23,7 @@ static const uint8_t A2 = PIN_A2;
 static const uint8_t A3 = PIN_A3;
 
 // LEDs
-#define PIN_LED (23u)
-#define PIN_LED1 PIN_LED
+#define PIN_LED1 (23u)
 #define LED_NOTIFICATION (24u)
 
 #define ADC_RESOLUTION 12

variants/rp2040/rak11310/variant.h

@@ -10,7 +10,7 @@
 #define I2C_SDA1 2
 #define I2C_SCL1 3
 
-#define LED_PIN PIN_LED
+#define LED_PIN PIN_LED1
 #define ledOff(pin) pinMode(pin, INPUT)
 
 #define BUTTON_PIN 9

variants/rp2040/senselora_rp2040/pins_arduino.h

@@ -11,8 +11,7 @@ static const uint8_t A2 = PIN_A2;
 static const uint8_t A3 = PIN_A3;
 
 // LEDs
-#define PIN_LED (23u)
-#define PIN_LED1 PIN_LED
+#define PIN_LED1 (23u)
 
 #define ADC_RESOLUTION 12
 

variants/rp2040/senselora_rp2040/variant.h

@@ -5,7 +5,7 @@
 #define BUTTON_PIN 2
 #define BUTTON_NEED_PULLUP
 
-#define LED_PIN PIN_LED
+#define LED_PIN PIN_LED1
 #define ledOff(pin) pinMode(pin, INPUT)
 
 #undef BATTERY_PIN