diff --git a/arch/nrf52/nrf52.ini b/arch/nrf52/nrf52.ini
index 5155eaadc8..2505fe3150 100644
--- a/arch/nrf52/nrf52.ini
+++ b/arch/nrf52/nrf52.ini
@@ -1,6 +1,6 @@
 [nrf52_base]
 ; Instead of the standard nordicnrf52 platform, we use our fork which has our added variant files
-platform = platformio/nordicnrf52@^10.1.0
+platform = platformio/nordicnrf52@^10.4.0
 extends = arduino_base
 
 build_type = debug ; I'm debugging with ICE a lot now
diff --git a/platformio.ini b/platformio.ini
index b67ddc50ac..392b38fd70 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -113,7 +113,7 @@ lib_deps =
 ; (not included in native / portduino)
 [environmental_base]
 lib_deps =
-  adafruit/Adafruit BusIO@^1.11.4
+  adafruit/Adafruit BusIO@^1.15.0
   adafruit/Adafruit Unified Sensor@^1.1.11
   adafruit/Adafruit BMP280 Library@^2.6.8
   adafruit/Adafruit BMP085 Library@^1.2.4
diff --git a/protobufs b/protobufs
index 00332412b2..7e3ee8cd96 160000
--- a/protobufs
+++ b/protobufs
@@ -1 +1 @@
-Subproject commit 00332412b238fe559175a6e83fdf8d31fa5e209a
+Subproject commit 7e3ee8cd96740910d0611433cb9a05a7a692568c
diff --git a/src/main.cpp b/src/main.cpp
index 535051811e..bb9b68631c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -226,6 +226,11 @@ void setup()
     digitalWrite(PIN_POWER_EN1, INPUT);
 #endif
 
+#if defined(LORA_TCXO_GPIO)
+    pinMode(LORA_TCXO_GPIO, OUTPUT);
+    digitalWrite(LORA_TCXO_GPIO, HIGH);
+#endif
+
 #if defined(VEXT_ENABLE_V03)
     pinMode(VEXT_ENABLE_V03, OUTPUT);
     pinMode(ST7735_BL_V03, OUTPUT);
diff --git a/src/mesh/generated/meshtastic/clientonly.pb.c b/src/mesh/generated/meshtastic/clientonly.pb.c
index ebc2ffabcb..90e8e2d8ae 100644
--- a/src/mesh/generated/meshtastic/clientonly.pb.c
+++ b/src/mesh/generated/meshtastic/clientonly.pb.c
@@ -9,4 +9,7 @@
 PB_BIND(meshtastic_DeviceProfile, meshtastic_DeviceProfile, 2)
 
 
+PB_BIND(meshtastic_Heartbeat, meshtastic_Heartbeat, AUTO)
+
+
 
diff --git a/src/mesh/generated/meshtastic/clientonly.pb.h b/src/mesh/generated/meshtastic/clientonly.pb.h
index 0f70e09c6c..19b0a0e5f2 100644
--- a/src/mesh/generated/meshtastic/clientonly.pb.h
+++ b/src/mesh/generated/meshtastic/clientonly.pb.h
@@ -30,6 +30,12 @@ typedef struct _meshtastic_DeviceProfile {
     meshtastic_LocalModuleConfig module_config;
 } meshtastic_DeviceProfile;
 
+/* A heartbeat message is sent by a node to indicate that it is still alive.
+ This is currently only needed to keep serial connections alive. */
+typedef struct _meshtastic_Heartbeat {
+    char dummy_field;
+} meshtastic_Heartbeat;
+
 
 #ifdef __cplusplus
 extern "C" {
@@ -37,7 +43,9 @@ extern "C" {
 
 /* Initializer values for message structs */
 #define meshtastic_DeviceProfile_init_default    {false, "", false, "", {{NULL}, NULL}, false, meshtastic_LocalConfig_init_default, false, meshtastic_LocalModuleConfig_init_default}
+#define meshtastic_Heartbeat_init_default        {0}
 #define meshtastic_DeviceProfile_init_zero       {false, "", false, "", {{NULL}, NULL}, false, meshtastic_LocalConfig_init_zero, false, meshtastic_LocalModuleConfig_init_zero}
+#define meshtastic_Heartbeat_init_zero           {0}
 
 /* Field tags (for use in manual encoding/decoding) */
 #define meshtastic_DeviceProfile_long_name_tag   1
@@ -58,13 +66,21 @@ X(a, STATIC,   OPTIONAL, MESSAGE,  module_config,     5)
 #define meshtastic_DeviceProfile_config_MSGTYPE meshtastic_LocalConfig
 #define meshtastic_DeviceProfile_module_config_MSGTYPE meshtastic_LocalModuleConfig
 
+#define meshtastic_Heartbeat_FIELDLIST(X, a) \
+
+#define meshtastic_Heartbeat_CALLBACK NULL
+#define meshtastic_Heartbeat_DEFAULT NULL
+
 extern const pb_msgdesc_t meshtastic_DeviceProfile_msg;
+extern const pb_msgdesc_t meshtastic_Heartbeat_msg;
 
 /* Defines for backwards compatibility with code written before nanopb-0.4.0 */
 #define meshtastic_DeviceProfile_fields &meshtastic_DeviceProfile_msg
+#define meshtastic_Heartbeat_fields &meshtastic_Heartbeat_msg
 
 /* Maximum encoded size of messages (where known) */
 /* meshtastic_DeviceProfile_size depends on runtime parameters */
+#define meshtastic_Heartbeat_size                0
 
 #ifdef __cplusplus
 } /* extern "C" */
diff --git a/src/mesh/generated/meshtastic/deviceonly.pb.h b/src/mesh/generated/meshtastic/deviceonly.pb.h
index 556821e1c6..79800d4b4b 100644
--- a/src/mesh/generated/meshtastic/deviceonly.pb.h
+++ b/src/mesh/generated/meshtastic/deviceonly.pb.h
@@ -324,7 +324,7 @@ extern const pb_msgdesc_t meshtastic_NodeRemoteHardwarePin_msg;
 #define meshtastic_DeviceState_size              17571
 #define meshtastic_NodeInfoLite_size             158
 #define meshtastic_NodeRemoteHardwarePin_size    29
-#define meshtastic_OEMStore_size                 3262
+#define meshtastic_OEMStore_size                 3278
 #define meshtastic_PositionLite_size             28
 
 #ifdef __cplusplus
diff --git a/src/mesh/generated/meshtastic/localonly.pb.h b/src/mesh/generated/meshtastic/localonly.pb.h
index 2e22cb1e4e..f27c119bd2 100644
--- a/src/mesh/generated/meshtastic/localonly.pb.h
+++ b/src/mesh/generated/meshtastic/localonly.pb.h
@@ -181,7 +181,7 @@ extern const pb_msgdesc_t meshtastic_LocalModuleConfig_msg;
 
 /* Maximum encoded size of messages (where known) */
 #define meshtastic_LocalConfig_size              469
-#define meshtastic_LocalModuleConfig_size        647
+#define meshtastic_LocalModuleConfig_size        663
 
 #ifdef __cplusplus
 } /* extern "C" */
diff --git a/src/mesh/generated/meshtastic/module_config.pb.c b/src/mesh/generated/meshtastic/module_config.pb.c
index a75c3fb594..594cf9628b 100644
--- a/src/mesh/generated/meshtastic/module_config.pb.c
+++ b/src/mesh/generated/meshtastic/module_config.pb.c
@@ -9,7 +9,7 @@
 PB_BIND(meshtastic_ModuleConfig, meshtastic_ModuleConfig, 2)
 
 
-PB_BIND(meshtastic_ModuleConfig_MQTTConfig, meshtastic_ModuleConfig_MQTTConfig, AUTO)
+PB_BIND(meshtastic_ModuleConfig_MQTTConfig, meshtastic_ModuleConfig_MQTTConfig, 2)
 
 
 PB_BIND(meshtastic_ModuleConfig_MapReportSettings, meshtastic_ModuleConfig_MapReportSettings, AUTO)
diff --git a/src/mesh/generated/meshtastic/module_config.pb.h b/src/mesh/generated/meshtastic/module_config.pb.h
index 2e1c25c7ff..a2adbc1b92 100644
--- a/src/mesh/generated/meshtastic/module_config.pb.h
+++ b/src/mesh/generated/meshtastic/module_config.pb.h
@@ -119,7 +119,7 @@ typedef struct _meshtastic_ModuleConfig_MQTTConfig {
     bool tls_enabled;
     /* The root topic to use for MQTT messages. Default is "msh".
  This is useful if you want to use a single MQTT server for multiple meshtastic networks and separate them via ACLs */
-    char root[16];
+    char root[32];
     /* If true, we can use the connected phone / client to proxy messages to MQTT instead of a direct connection */
     bool proxy_to_client_enabled;
     /* If true, we will periodically report unencrypted information about our node to a map via MQTT */
@@ -832,7 +832,7 @@ extern const pb_msgdesc_t meshtastic_RemoteHardwarePin_msg;
 #define meshtastic_ModuleConfig_CannedMessageConfig_size 49
 #define meshtastic_ModuleConfig_DetectionSensorConfig_size 44
 #define meshtastic_ModuleConfig_ExternalNotificationConfig_size 42
-#define meshtastic_ModuleConfig_MQTTConfig_size  238
+#define meshtastic_ModuleConfig_MQTTConfig_size  254
 #define meshtastic_ModuleConfig_MapReportSettings_size 12
 #define meshtastic_ModuleConfig_NeighborInfoConfig_size 8
 #define meshtastic_ModuleConfig_PaxcounterConfig_size 8
@@ -841,7 +841,7 @@ extern const pb_msgdesc_t meshtastic_RemoteHardwarePin_msg;
 #define meshtastic_ModuleConfig_SerialConfig_size 28
 #define meshtastic_ModuleConfig_StoreForwardConfig_size 22
 #define meshtastic_ModuleConfig_TelemetryConfig_size 36
-#define meshtastic_ModuleConfig_size             241
+#define meshtastic_ModuleConfig_size             257
 #define meshtastic_RemoteHardwarePin_size        21
 
 #ifdef __cplusplus
diff --git a/src/modules/ExternalNotificationModule.cpp b/src/modules/ExternalNotificationModule.cpp
index 9af1f9e001..652965f6df 100644
--- a/src/modules/ExternalNotificationModule.cpp
+++ b/src/modules/ExternalNotificationModule.cpp
@@ -81,7 +81,7 @@ int32_t ExternalNotificationModule::runOnce()
             // let the song finish if we reach timeout
             nagCycleCutoff = UINT32_MAX;
             LOG_INFO("Turning off external notification: ");
-            for (int i = 0; i < 2; i++) {
+            for (int i = 0; i < 3; i++) {
                 setExternalOff(i);
                 externalTurnedOn[i] = 0;
                 LOG_INFO("%d ", i);
diff --git a/src/power.h b/src/power.h
index 4dd35e7103..b94ce8f985 100644
--- a/src/power.h
+++ b/src/power.h
@@ -10,13 +10,6 @@
 #define NUM_OCV_POINTS 11
 #endif
 
-// 3400,3350,3320,3290,3270,3260,3250,3230,3200,3120,3000 //3.4 to 3.0 LiFePO4
-// 2120,2090,2070,2050,2030,2010,1990,1980,1970,1960,1950 //2.12 to 1.95 Lead Acid
-// 4200,4050,3990,3890,3790,3700,3650,3550,3450,3300,3200 //4.2 to 3.2 LiIon/LiPo
-// 4200,4050,3990,3890,3790,3700,3650,3550,3400,3300,3000 //4.2 to 3.0 LiIon/LiPo
-// 4150,4050,3990,3890,3790,3690,3620,3520,3420,3300,3100 //4.15 to 3.1 LiIon/LiPo
-// 2770,2650,2540,2420,2300,2180,2060,1940,1800,1680,1550 //2.8 to 1.5 Lithium Titanate
-
 #ifndef OCV_ARRAY
 #ifdef CELL_TYPE_LIFEPO4
 #define OCV_ARRAY 3400, 3350, 3320, 3290, 3270, 3260, 3250, 3230, 3200, 3120, 3000
@@ -27,7 +20,7 @@
 #elif defined(CELL_TYPE_NIMH)
 #define OCV_ARRAY 1400, 1300, 1280, 1270, 1260, 1250, 1240, 1230, 1210, 1150, 1000
 #elif defined(CELL_TYPE_LTO)
-#define OCV_ARRAY 2770, 2650, 2540, 2420, 2300, 2180, 2060, 1940, 1800, 1680, 1550
+#define OCV_ARRAY 2700, 2560, 2540, 2520, 2500, 2460, 2420, 2400, 2380, 2320, 1500
 #else // LiIon
 #define OCV_ARRAY 4190, 4050, 3990, 3890, 3800, 3720, 3630, 3530, 3420, 3300, 3100
 #endif
diff --git a/variants/canaryone/platformio.ini b/variants/canaryone/platformio.ini
index d52bbb24a7..4917f52c7d 100644
--- a/variants/canaryone/platformio.ini
+++ b/variants/canaryone/platformio.ini
@@ -10,6 +10,5 @@ build_flags = ${nrf52840_base.build_flags} -Ivariants/canaryone
 build_src_filter = ${nrf52_base.build_src_filter} +<../variants/canaryone>
 lib_deps = 
   ${nrf52840_base.lib_deps}
-  adafruit/Adafruit BusIO@^1.13.2
   lewisxhe/PCF8563_Library@^1.0.1
 ;upload_protocol = fs
diff --git a/variants/heltec_wireless_paper/platformio.ini b/variants/heltec_wireless_paper/platformio.ini
index 94ed15ed18..1e1bb93760 100644
--- a/variants/heltec_wireless_paper/platformio.ini
+++ b/variants/heltec_wireless_paper/platformio.ini
@@ -17,6 +17,5 @@ build_flags =
 lib_deps =
   ${esp32s3_base.lib_deps}
   https://github.com/meshtastic/GxEPD2#55f618961db45a23eff0233546430f1e5a80f63a
-  adafruit/Adafruit BusIO@^1.13.2
   lewisxhe/PCF8563_Library@^1.0.1
 upload_speed = 115200
\ No newline at end of file
diff --git a/variants/heltec_wireless_paper_v1/platformio.ini b/variants/heltec_wireless_paper_v1/platformio.ini
index de832d6d7c..cae1940b39 100644
--- a/variants/heltec_wireless_paper_v1/platformio.ini
+++ b/variants/heltec_wireless_paper_v1/platformio.ini
@@ -17,6 +17,5 @@ build_flags =
 lib_deps =
   ${esp32s3_base.lib_deps}
   https://github.com/meshtastic/GxEPD2#55f618961db45a23eff0233546430f1e5a80f63a
-  adafruit/Adafruit BusIO@^1.13.2
   lewisxhe/PCF8563_Library@^1.0.1
 upload_speed = 115200
\ No newline at end of file
diff --git a/variants/nano-g2-ultra/platformio.ini b/variants/nano-g2-ultra/platformio.ini
index d5e5a61373..2b011e0329 100644
--- a/variants/nano-g2-ultra/platformio.ini
+++ b/variants/nano-g2-ultra/platformio.ini
@@ -9,6 +9,5 @@ build_flags = ${nrf52840_base.build_flags} -Ivariants/nano-g2-ultra -D NANO_G2_U
 build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nano-g2-ultra>
 lib_deps = 
   ${nrf52840_base.lib_deps}
-  adafruit/Adafruit BusIO@^1.13.2
   lewisxhe/PCF8563_Library@^1.0.1
 ;upload_protocol = fs
diff --git a/variants/t-echo/platformio.ini b/variants/t-echo/platformio.ini
index be8900e0f3..9ff60be3f5 100644
--- a/variants/t-echo/platformio.ini
+++ b/variants/t-echo/platformio.ini
@@ -21,6 +21,5 @@ build_src_filter = ${nrf52_base.build_src_filter} +<../variants/t-echo>
 lib_deps = 
   ${nrf52840_base.lib_deps}
   https://github.com/meshtastic/GxEPD2#55f618961db45a23eff0233546430f1e5a80f63a
-  adafruit/Adafruit BusIO@^1.13.2
   lewisxhe/PCF8563_Library@^1.0.1
 ;upload_protocol = fs