diff --git a/boards/tlora-t3s3-v1.json b/boards/tlora-t3s3-v1.json
index 5af53084f..d073fc7c1 100644
--- a/boards/tlora-t3s3-v1.json
+++ b/boards/tlora-t3s3-v1.json
@@ -14,7 +14,7 @@
     "f_cpu": "240000000L",
     "f_flash": "80000000L",
     "flash_mode": "dio",
-    "hwids": [["0X303A", "0x1001"]],
+    "hwids": [["0x303A", "0x1001"]],
     "mcu": "esp32s3",
     "variant": "tlora-t3s3-v1"
   },
diff --git a/platformio.ini b/platformio.ini
index 4f8f53d0c..af18a6f8b 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -13,6 +13,7 @@ default_envs = tbeam
 ;default_envs = tlora_v1_3
 ;default_envs = tlora-v2
 ;default_envs = tlora-v2-1-1.6
+;default_envs = tlora-t3s3-v1
 ;default_envs = lora-relay-v1 # nrf board
 ;default_envs = t-echo
 ;default_envs = nrf52840dk-geeksville
diff --git a/protobufs b/protobufs
index 275ddfd2d..b3d05ec99 160000
--- a/protobufs
+++ b/protobufs
@@ -1 +1 @@
-Subproject commit 275ddfd2d017c5a806f2de2975892d197e404c27
+Subproject commit b3d05ec995844ae888e1d43d6e5c770b7d654309
diff --git a/src/graphics/Screen.cpp b/src/graphics/Screen.cpp
index c935c354f..12d08cd17 100644
--- a/src/graphics/Screen.cpp
+++ b/src/graphics/Screen.cpp
@@ -518,18 +518,12 @@ static void drawGPS(OLEDDisplay *display, int16_t x, int16_t y, const GPSStatus
 // Draw status when gps is disabled by PMU
 static void drawGPSpowerstat(OLEDDisplay *display, int16_t x, int16_t y, const GPSStatus *gps)
 {
-#ifdef HAS_PMU
     String displayLine = "GPS disabled";
     int16_t xPos = display->getStringWidth(displayLine);
 
     if (!config.position.gps_enabled) {
         display->drawString(x + xPos, y, displayLine);
-#ifdef GPS_POWER_TOGGLE
-        display->drawString(x + xPos, y - 2 + FONT_HEIGHT_SMALL, " by button");
-#endif
-        // display->drawString(x + xPos, y + 2, displayLine);
     }
-#endif
 }
 
 static void drawGPSAltitude(OLEDDisplay *display, int16_t x, int16_t y, const GPSStatus *gps)
@@ -1440,11 +1434,7 @@ void DebugInfo::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16
     }
     // Display GPS status
     if (!config.position.gps_enabled) {
-        int16_t yPos = y + 2;
-#ifdef GPS_POWER_TOGGLE
-        yPos = (y + 10 + FONT_HEIGHT_SMALL);
-#endif
-        drawGPSpowerstat(display, x, yPos, gpsStatus);
+        drawGPSpowerstat(display, x, y + 2, gpsStatus);
     } else {
         if (config.display.displaymode == meshtastic_Config_DisplayConfig_DisplayMode_DEFAULT) {
             drawGPS(display, x + (SCREEN_WIDTH * 0.63), y + 2, gpsStatus);
@@ -1761,6 +1751,9 @@ void DebugInfo::drawFrameSettings(OLEDDisplay *display, OLEDDisplayUiState *stat
         drawGPScoordinates(display, x, y + FONT_HEIGHT_SMALL * 3, gpsStatus);
     } else {
         drawGPSpowerstat(display, x - (SCREEN_WIDTH / 4), y + FONT_HEIGHT_SMALL * 2, gpsStatus);
+#ifdef GPS_POWER_TOGGLE
+        display->drawString(x + 30, (y + FONT_HEIGHT_SMALL * 3), " by button");
+#endif
     }
     /* Display a heartbeat pixel that blinks every time the frame is redrawn */
 #ifdef SHOW_REDRAWS
diff --git a/src/main.cpp b/src/main.cpp
index e2e39ebd2..c1afb5c18 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -420,19 +420,6 @@ void setup()
     }
 #endif
 
-#if defined(USE_SX1280)
-    if (!rIf) {
-        rIf = new SX1280Interface(SX128X_CS, SX128X_DIO1, SX128X_RESET, SX128X_BUSY, SPI);
-        if (!rIf->init()) {
-            LOG_WARN("Failed to find SX1280 radio\n");
-            delete rIf;
-            rIf = NULL;
-        } else {
-            LOG_INFO("SX1280 Radio init succeeded, using SX1280 radio\n");
-        }
-    }
-#endif
-
 #if defined(USE_SX1262)
     if (!rIf) {
         rIf = new SX1262Interface(SX126X_CS, SX126X_DIO1, SX126X_RESET, SX126X_BUSY, SPI);
@@ -472,6 +459,19 @@ void setup()
     }
 #endif
 
+#if defined(USE_SX1280)
+    if (!rIf) {
+        rIf = new SX1280Interface(SX128X_CS, SX128X_DIO1, SX128X_RESET, SX128X_BUSY, SPI);
+        if (!rIf->init()) {
+            LOG_WARN("Failed to find SX1280 radio\n");
+            delete rIf;
+            rIf = NULL;
+        } else {
+            LOG_INFO("SX1280 Radio init succeeded, using SX1280 radio\n");
+        }
+    }
+#endif
+
     // check if the radio chip matches the selected region
 
     if ((config.lora.region == meshtastic_Config_LoRaConfig_RegionCode_LORA_24) && (!rIf->wideLora())) {
diff --git a/src/mesh/FloodingRouter.cpp b/src/mesh/FloodingRouter.cpp
index d0925d0a1..d8861943e 100644
--- a/src/mesh/FloodingRouter.cpp
+++ b/src/mesh/FloodingRouter.cpp
@@ -44,7 +44,8 @@ void FloodingRouter::sniffReceived(const meshtastic_MeshPacket *p, const meshtas
                 tosend->hop_limit--; // bump down the hop count
 
                 // If it is a traceRoute request, update the route that it went via me
-                if (p->which_payload_variant == meshtastic_MeshPacket_decoded_tag && traceRouteModule->wantPacket(p)) {
+                if (p->which_payload_variant == meshtastic_MeshPacket_decoded_tag && traceRouteModule &&
+                    traceRouteModule->wantPacket(p)) {
                     traceRouteModule->updateRoute(tosend);
                 }
 
diff --git a/src/mesh/MeshService.cpp b/src/mesh/MeshService.cpp
index 80fea011b..650f6882b 100644
--- a/src/mesh/MeshService.cpp
+++ b/src/mesh/MeshService.cpp
@@ -76,7 +76,7 @@ int MeshService::handleFromRadio(const meshtastic_MeshPacket *mp)
     powerFSM.trigger(EVENT_PACKET_FOR_PHONE); // Possibly keep the node from sleeping
 
     nodeDB.updateFrom(*mp); // update our DB state based off sniffing every RX packet from the radio
-    if (!nodeDB.getNode(mp->from)->has_user && nodeInfoModule) {
+    if (mp->which_payload_variant == meshtastic_MeshPacket_decoded_tag && !nodeDB.getNode(mp->from)->has_user && nodeInfoModule) {
         LOG_INFO("Heard a node we don't know, sending NodeInfo and asking for a response.\n");
         nodeInfoModule->sendOurNodeInfo(mp->from, true);
     }
diff --git a/src/mesh/NodeDB.cpp b/src/mesh/NodeDB.cpp
index ebf214316..0748f50aa 100644
--- a/src/mesh/NodeDB.cpp
+++ b/src/mesh/NodeDB.cpp
@@ -239,6 +239,9 @@ void NodeDB::installRoleDefaults(meshtastic_Config_DeviceConfig_Role role)
         config.position.position_broadcast_smart_enabled = false;
         config.position.position_broadcast_secs = 120;
         config.position.gps_update_interval = 60;
+    } else if (role == meshtastic_Config_DeviceConfig_Role_SENSOR) {
+        moduleConfig.telemetry.environment_measurement_enabled = true;
+        moduleConfig.telemetry.environment_update_interval = 300;
     }
 }
 
diff --git a/src/mesh/RadioInterface.cpp b/src/mesh/RadioInterface.cpp
index 94dab0bcd..118aab5a6 100644
--- a/src/mesh/RadioInterface.cpp
+++ b/src/mesh/RadioInterface.cpp
@@ -175,7 +175,7 @@ uint32_t RadioInterface::getPacketTime(uint32_t pl)
     return msecs;
 }
 
-uint32_t RadioInterface::getPacketTime(meshtastic_MeshPacket *p)
+uint32_t RadioInterface::getPacketTime(const meshtastic_MeshPacket *p)
 {
     uint32_t pl = 0;
     if (p->which_payload_variant == meshtastic_MeshPacket_encrypted_tag) {
diff --git a/src/mesh/RadioInterface.h b/src/mesh/RadioInterface.h
index b9511fd5d..68dbf3522 100644
--- a/src/mesh/RadioInterface.h
+++ b/src/mesh/RadioInterface.h
@@ -154,7 +154,7 @@ class RadioInterface
      *
      * @return num msecs for the packet
      */
-    uint32_t getPacketTime(meshtastic_MeshPacket *p);
+    uint32_t getPacketTime(const meshtastic_MeshPacket *p);
     uint32_t getPacketTime(uint32_t totalPacketLen);
 
     /**
diff --git a/src/mesh/ReliableRouter.cpp b/src/mesh/ReliableRouter.cpp
index 3d07ff77e..774be9c17 100644
--- a/src/mesh/ReliableRouter.cpp
+++ b/src/mesh/ReliableRouter.cpp
@@ -24,6 +24,15 @@ ErrorCode ReliableRouter::send(meshtastic_MeshPacket *p)
         startRetransmission(copy);
     }
 
+    /* If we have pending retransmissions, add the airtime of this packet to it, because during that time we cannot receive an
+       (implicit) ACK. Otherwise, we might retransmit too early.
+     */
+    for (auto i = pending.begin(); i != pending.end(); i++) {
+        if (i->first.id != p->id) {
+            i->second.nextTxMsec += iface->getPacketTime(p);
+        }
+    }
+
     return FloodingRouter::send(p);
 }
 
@@ -53,6 +62,15 @@ bool ReliableRouter::shouldFilterReceived(const meshtastic_MeshPacket *p)
         }
     }
 
+    /* At this point we have already deleted the pending retransmission if this packet was an (implicit) ACK to it.
+       Now for all other pending retransmissions, we have to add the airtime of this received packet to the retransmission timer,
+       because while receiving this packet, we could not have received an (implicit) ACK for it.
+       If we don't add this, we will likely retransmit too early.
+    */
+    for (auto i = pending.begin(); i != pending.end(); i++) {
+        i->second.nextTxMsec += iface->getPacketTime(p);
+    }
+
     /* Resend implicit ACKs for repeated packets (assuming the original packet was sent with HOP_RELIABLE)
      * this way if an implicit ACK is dropped and a packet is resent we'll rebroadcast again.
      * Resending real ACKs is omitted, as you might receive a packet multiple times due to flooding and
diff --git a/src/mesh/generated/meshtastic/config.pb.h b/src/mesh/generated/meshtastic/config.pb.h
index 0ffb4ccec..fcb129bef 100644
--- a/src/mesh/generated/meshtastic/config.pb.h
+++ b/src/mesh/generated/meshtastic/config.pb.h
@@ -31,7 +31,10 @@ typedef enum _meshtastic_Config_DeviceConfig_Role {
     meshtastic_Config_DeviceConfig_Role_REPEATER = 4,
     /* Tracker device role
    Position Mesh packets will be prioritized higher and sent more frequently by default. */
-    meshtastic_Config_DeviceConfig_Role_TRACKER = 5
+    meshtastic_Config_DeviceConfig_Role_TRACKER = 5,
+    /* Sensor device role
+   Telemetry Mesh packets will be prioritized higher and sent more frequently by default. */
+    meshtastic_Config_DeviceConfig_Role_SENSOR = 6
 } meshtastic_Config_DeviceConfig_Role;
 
 /* Defines the device's behavior for how messages are rebroadcast */
@@ -453,8 +456,8 @@ extern "C" {
 
 /* Helper constants for enums */
 #define _meshtastic_Config_DeviceConfig_Role_MIN meshtastic_Config_DeviceConfig_Role_CLIENT
-#define _meshtastic_Config_DeviceConfig_Role_MAX meshtastic_Config_DeviceConfig_Role_TRACKER
-#define _meshtastic_Config_DeviceConfig_Role_ARRAYSIZE ((meshtastic_Config_DeviceConfig_Role)(meshtastic_Config_DeviceConfig_Role_TRACKER+1))
+#define _meshtastic_Config_DeviceConfig_Role_MAX meshtastic_Config_DeviceConfig_Role_SENSOR
+#define _meshtastic_Config_DeviceConfig_Role_ARRAYSIZE ((meshtastic_Config_DeviceConfig_Role)(meshtastic_Config_DeviceConfig_Role_SENSOR+1))
 
 #define _meshtastic_Config_DeviceConfig_RebroadcastMode_MIN meshtastic_Config_DeviceConfig_RebroadcastMode_ALL
 #define _meshtastic_Config_DeviceConfig_RebroadcastMode_MAX meshtastic_Config_DeviceConfig_RebroadcastMode_LOCAL_ONLY
diff --git a/src/modules/Telemetry/AirQualityTelemetry.cpp b/src/modules/Telemetry/AirQualityTelemetry.cpp
index c300e1f96..de74c0bf9 100644
--- a/src/modules/Telemetry/AirQualityTelemetry.cpp
+++ b/src/modules/Telemetry/AirQualityTelemetry.cpp
@@ -108,7 +108,10 @@ bool AirQualityTelemetryModule::sendTelemetry(NodeNum dest, bool phoneOnly)
     meshtastic_MeshPacket *p = allocDataProtobuf(m);
     p->to = dest;
     p->decoded.want_response = false;
-    p->priority = meshtastic_MeshPacket_Priority_MIN;
+    if (config.device.role == meshtastic_Config_DeviceConfig_Role_SENSOR)
+        p->priority = meshtastic_MeshPacket_Priority_RELIABLE;
+    else
+        p->priority = meshtastic_MeshPacket_Priority_MIN;
 
     // release previous packet before occupying a new spot
     if (lastMeasurementPacket != nullptr)
diff --git a/src/modules/Telemetry/EnvironmentTelemetry.cpp b/src/modules/Telemetry/EnvironmentTelemetry.cpp
index bd7ed539a..3b8a7dda1 100644
--- a/src/modules/Telemetry/EnvironmentTelemetry.cpp
+++ b/src/modules/Telemetry/EnvironmentTelemetry.cpp
@@ -244,8 +244,10 @@ bool EnvironmentTelemetryModule::sendTelemetry(NodeNum dest, bool phoneOnly)
     meshtastic_MeshPacket *p = allocDataProtobuf(m);
     p->to = dest;
     p->decoded.want_response = false;
-    p->priority = meshtastic_MeshPacket_Priority_MIN;
-
+    if (config.device.role == meshtastic_Config_DeviceConfig_Role_SENSOR)
+        p->priority = meshtastic_MeshPacket_Priority_RELIABLE;
+    else
+        p->priority = meshtastic_MeshPacket_Priority_MIN;
     // release previous packet before occupying a new spot
     if (lastMeasurementPacket != nullptr)
         packetPool.release(lastMeasurementPacket);
diff --git a/src/platform/esp32/architecture.h b/src/platform/esp32/architecture.h
index edd16ebbd..45ee7e6d4 100644
--- a/src/platform/esp32/architecture.h
+++ b/src/platform/esp32/architecture.h
@@ -97,6 +97,8 @@
 #define HW_VENDOR meshtastic_HardwareModel_BETAFPV_2400_TX
 #elif defined(NANO_G1_EXPLORER)
 #define HW_VENDOR meshtastic_HardwareModel_NANO_G1_EXPLORER
+#elif defined(BETAFPV_900_TX_NANO)
+#define HW_VENDOR meshtastic_HardwareModel_BETAFPV_900_NANO_TX
 #endif
 
 //
diff --git a/src/platform/nrf52/NRF52Bluetooth.cpp b/src/platform/nrf52/NRF52Bluetooth.cpp
index 044b57ae6..59d11717a 100644
--- a/src/platform/nrf52/NRF52Bluetooth.cpp
+++ b/src/platform/nrf52/NRF52Bluetooth.cpp
@@ -92,12 +92,12 @@ void startAdv(void)
     Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
 
     // IncludeService UUID
-    // Bluefruit.ScanResponse.addService(meshBleService);
+    Bluefruit.ScanResponse.addService(meshBleService);
     Bluefruit.ScanResponse.addTxPower();
     Bluefruit.ScanResponse.addName();
 
     // Include Name
-    // Bluefruit.Advertising.addName();
+    Bluefruit.Advertising.addName();
     Bluefruit.Advertising.addService(meshBleService);
 
     /* Start Advertising
diff --git a/variants/betafpv_900_tx_nano/platformio.ini b/variants/betafpv_900_tx_nano/platformio.ini
new file mode 100644
index 000000000..e4c945cab
--- /dev/null
+++ b/variants/betafpv_900_tx_nano/platformio.ini
@@ -0,0 +1,16 @@
+[env:betafpv_900_tx_nano]
+extends = esp32_base
+board = esp32doit-devkit-v1
+build_flags =
+  ${esp32_base.build_flags}
+  -D BETAFPV_900_TX_NANO
+  -D VTABLES_IN_FLASH=1
+  -D CONFIG_DISABLE_HAL_LOCKS=1
+  -O2
+  -I variants/betafpv_900_tx_nano
+board_build.f_cpu = 240000000L
+upload_protocol = esptool
+upload_port = /dev/ttyUSB0
+upload_speed = 460800
+lib_deps =
+  ${esp32_base.lib_deps}
diff --git a/variants/betafpv_900_tx_nano/variant.h b/variants/betafpv_900_tx_nano/variant.h
new file mode 100644
index 000000000..01961d92d
--- /dev/null
+++ b/variants/betafpv_900_tx_nano/variant.h
@@ -0,0 +1,28 @@
+// https://betafpv.com/products/elrs-nano-tx-module
+
+// no screen
+#define HAS_SCREEN 0
+
+// NO GPS
+#undef GPS_RX_PIN
+#undef GPS_TX_PIN
+
+#define USE_RF95
+
+#define RF95_SCK 18
+#define RF95_MISO 19
+#define RF95_MOSI 23
+#define RF95_NSS 5
+
+#define LORA_DIO0 4
+#define LORA_RESET 14
+#define LORA_DIO1 2
+#define LORA_DIO2
+#define LORA_DIO3
+
+#define LED_PIN 16 // green - blue is at 17
+
+#define BUTTON_PIN 25
+#define BUTTON_NEED_PULLUP
+
+#undef EXT_NOTIFY_OUT
diff --git a/variants/tlora_t3s3_v1/platformio.ini b/variants/tlora_t3s3_v1/platformio.ini
index aa8189199..568e8af42 100644
--- a/variants/tlora_t3s3_v1/platformio.ini
+++ b/variants/tlora_t3s3_v1/platformio.ini
@@ -1,6 +1,7 @@
 [env:tlora-t3s3-v1]
 extends = esp32s3_base
 board = tlora-t3s3-v1
+upload_protocol = esp-builtin
 lib_deps =
   ${esp32_base.lib_deps}
   caveman99/ESP32 Codec2@^1.0.1
diff --git a/variants/tlora_t3s3_v1/variant.h b/variants/tlora_t3s3_v1/variant.h
index 116911ae0..68eb18e31 100644
--- a/variants/tlora_t3s3_v1/variant.h
+++ b/variants/tlora_t3s3_v1/variant.h
@@ -37,11 +37,12 @@
 
 #ifdef USE_SX1262
 #define SX126X_CS RF95_NSS // FIXME - we really should define LORA_CS instead
-#define SX126X_DIO1 LORA_DIO1
-#define SX126X_BUSY 36
+#define SX126X_DIO1 33
+#define SX126X_BUSY 34
 #define SX126X_RESET LORA_RESET
-#define SX126X_RXEN 21
-#define SX126X_TXEN 10
+//#define SX126X_RXEN 21
+//#define SX126X_TXEN 10
+#define SX126X_E22
 #endif
 
 #ifdef USE_SX1280
diff --git a/version.properties b/version.properties
index d0805fbbf..dca62c699 100644
--- a/version.properties
+++ b/version.properties
@@ -1,4 +1,4 @@
 [VERSION]  
 major = 2
 minor = 0
-build = 22
+build = 24