Merge remote-tracking branch 'origin/dev' into mqtt-bridge-implementation-flex

Resolve conflicts: keep MQTT prefs skip/pad and append rx_boosted_gain I/O per dev layout; add devcontainer node feature from dev. Made-with: Cursor
2026-07-11 20:48:49 +00:00 · 2026-03-28 08:37:42 -07:00
parent 3eacf56e36 517f2f1efd
commit cc17c6b745
25 changed files with 804 additions and 49 deletions
@@ -2,6 +2,7 @@
 	"name": "MeshCore",
 	"image": "mcr.microsoft.com/devcontainers/python:3-bookworm",
 	"features": {
+		"ghcr.io/devcontainers/features/node:1": {},
 		"ghcr.io/rocker-org/devcontainer-features/apt-packages:1": {
 			"packages": [
 				"sudo"
@@ -106,6 +106,13 @@ This document provides an overview of CLI commands that can be sent to MeshCore

 ---

+### Discover zero hop neighbors
+
+**Usage:** 
+- `discover.neighbors`
+
+---
+
 ## Statistics

 ### Clear Stats
@@ -238,6 +245,22 @@ This document provides an overview of CLI commands that can be sent to MeshCore
 **Note:** Requires reboot to apply
 **Serial Only:** `set freq <frequency>`

+---
+
+#### View or change this node's rx boosted gain mode (SX12xx only, v1.14.1+)
+**Usage:**
+- `get radio.rxgain`
+- `set radio.rxgain <state>`
+
+**Parameters:**
+  - `state`: `on`|`off`
+
+**Default:** `on`
+
+**Temporary Note:** If you upgraded from an older version to 1.14.1 without erasing flash, this setting is `off` because of [#2118](https://github.com/meshcore-dev/MeshCore/issues/2118)
+
+---
+
 ### System

 #### View or change this node's name
@@ -477,7 +500,29 @@ This document provides an overview of CLI commands that can be sent to MeshCore

 ---

+#### View or change the duty cycle limit
+**Usage:**
+- `get dutycycle`
+- `set dutycycle <value>`
+
+**Parameters:**
+- `value`: Duty cycle percentage (1-100)
+
+**Default:** `50%` (equivalent to airtime factor 1.0)
+
+**Examples:**
+- `set dutycycle 100` — no duty cycle limit
+- `set dutycycle 50` — 50% duty cycle (default)
+- `set dutycycle 10` — 10% duty cycle
+- `set dutycycle 1` — 1% duty cycle (strictest EU requirement)
+
+> **Note:** Added in firmware v1.15.0
+
+---
+
 #### View or change the airtime factor (duty cycle limit)
+> **Deprecated** as of firmware v1.15.0. Use [`get/set dutycycle`](#view-or-change-the-duty-cycle-limit) instead.
+
 **Usage:**
 - `get af`
 - `set af <value>`
@@ -487,8 +532,8 @@ This document provides an overview of CLI commands that can be sent to MeshCore
  - `af = 1` → ~50% duty
  - `af = 2` → ~33% duty
  - `af = 3` → ~25% duty
-  - `af = 9` → ~10% duty  
-  Yyou are responsible for choosing a value that is appropriate for your jurisdiction and channel plan (for example EU 868 Mhz 10% duty cycle regulation).
+  - `af = 9` → ~10% duty
+  You are responsible for choosing a value that is appropriate for your jurisdiction and channel plan (for example EU 868 Mhz 10% duty cycle regulation).

 **Default:** `1.0`

@@ -281,6 +281,33 @@ Bytes 7+: Message Text (UTF-8, variable length)

 ---

+### 6. Send Channel Data Datagram
+
+**Purpose**: Send binary datagram data to a channel.
+
+**Command Format**:
+```
+Byte 0: 0x3E
+Bytes 1-2: Data Type (`data_type`, 16-bit little-endian)
+Byte 3: Channel Index (0-7)
+Bytes 4+: Binary payload bytes (variable length)
+```
+
+**Data Type / Transport Mapping**:
+- `0x0000` is invalid for this command.
+- `0xFFFF` (`DATA_TYPE_DEV`) is the developer namespace for experimenting and developing apps.
+- Other non-zero values can be used as assigned application/community namespaces.
+
+**Note**: Applications that need a timestamp should encode it inside the binary payload.
+
+**Limits**:
+- Maximum payload length is `163` bytes.
+- Larger payloads are rejected with `PACKET_ERROR`.
+
+**Response**: `PACKET_OK` (0x00) on success
+
+---
+
 ### 6. Get Message

 **Purpose**: Request the next queued message from the device.
@@ -386,7 +386,7 @@ https://github.com/meshcore-dev/MeshCore/blob/main/src/Packet.h#L19
    #define PAYLOAD_TYPE_TXT_MSG 0x02 // a plain text message (prefixed with dest/src hashes, MAC) (enc data: timestamp, text)
    #define PAYLOAD_TYPE_ACK 0x03 // a simple ack #define PAYLOAD_TYPE_ADVERT 0x04 // a node advertising its Identity
    #define PAYLOAD_TYPE_GRP_TXT 0x05 // an (unverified) group text message (prefixed with channel hash, MAC) (enc data: timestamp, "name: msg")
-    #define PAYLOAD_TYPE_GRP_DATA 0x06 // an (unverified) group datagram (prefixed with channel hash, MAC) (enc data: timestamp, blob)
+    #define PAYLOAD_TYPE_GRP_DATA 0x06 // an (unverified) group datagram (prefixed with channel hash, MAC) (enc data: data_type, data_len, blob)
    #define PAYLOAD_TYPE_ANON_REQ 0x07 // generic request (prefixed with dest_hash, ephemeral pub_key, MAC) (enc data: ...)
    #define PAYLOAD_TYPE_PATH 0x08 // returned path (prefixed with dest/src hashes, MAC) (enc data: path, extra)

@@ -27,10 +27,15 @@ set lon {longitude}
 ```
 Sets your advertisement map longitude. (decimal degrees)

+```
+set dutycycle {percent}
+```
+Sets the transmit duty cycle limit (1-100%). Example: `set dutycycle 10` for 10%.
+
 ```
 set af {air-time-factor}
 ```
-Sets the transmit air-time-factor.
+Sets the transmit air-time-factor. Deprecated — use `set dutycycle` instead.


 ```
@@ -58,6 +58,7 @@
 #define CMD_GET_AUTOADD_CONFIG        59
 #define CMD_GET_ALLOWED_REPEAT_FREQ   60
 #define CMD_SET_PATH_HASH_MODE        61
+#define CMD_SEND_CHANNEL_DATA         62

 // Stats sub-types for CMD_GET_STATS
 #define STATS_TYPE_CORE               0
@@ -91,6 +92,9 @@
 #define RESP_CODE_STATS               24   // v8+, second byte is stats type
 #define RESP_CODE_AUTOADD_CONFIG      25
 #define RESP_ALLOWED_REPEAT_FREQ      26
+#define RESP_CODE_CHANNEL_DATA_RECV   27
+
+#define MAX_CHANNEL_DATA_LENGTH       (MAX_FRAME_SIZE - 9)

 #define SEND_TIMEOUT_BASE_MILLIS        500
 #define FLOOD_SEND_TIMEOUT_FACTOR       16.0f
@@ -204,7 +208,8 @@ void MyMesh::updateContactFromFrame(ContactInfo &contact, uint32_t& last_mod, co
 }

 bool MyMesh::Frame::isChannelMsg() const {
-  return buf[0] == RESP_CODE_CHANNEL_MSG_RECV || buf[0] == RESP_CODE_CHANNEL_MSG_RECV_V3;
+  return buf[0] == RESP_CODE_CHANNEL_MSG_RECV || buf[0] == RESP_CODE_CHANNEL_MSG_RECV_V3 ||
+         buf[0] == RESP_CODE_CHANNEL_DATA_RECV;
 }

 void MyMesh::addToOfflineQueue(const uint8_t frame[], int len) {
@@ -292,7 +297,7 @@ bool MyMesh::shouldAutoAddContactType(uint8_t contact_type) const {
  if ((_prefs.manual_add_contacts & 1) == 0) {
    return true;
  }
-  
+
  uint8_t type_bit = 0;
  switch (contact_type) {
    case ADV_TYPE_CHAT:
@@ -310,7 +315,7 @@ bool MyMesh::shouldAutoAddContactType(uint8_t contact_type) const {
    default:
      return false;  // Unknown type, don't auto-add
  }
-  
+
  return (_prefs.autoadd_config & type_bit) != 0;
 }

@@ -564,6 +569,41 @@ void MyMesh::onChannelMessageRecv(const mesh::GroupChannel &channel, mesh::Packe
 #endif
 }

+void MyMesh::onChannelDataRecv(const mesh::GroupChannel &channel, mesh::Packet *pkt, uint16_t data_type,
+                               const uint8_t *data, size_t data_len) {
+  if (data_len > MAX_CHANNEL_DATA_LENGTH) {
+    MESH_DEBUG_PRINTLN("onChannelDataRecv: dropping payload_len=%d exceeds frame limit=%d",
+                       (uint32_t)data_len, (uint32_t)MAX_CHANNEL_DATA_LENGTH);
+    return;
+  }
+
+  int i = 0;
+  out_frame[i++] = RESP_CODE_CHANNEL_DATA_RECV;
+  out_frame[i++] = (int8_t)(pkt->getSNR() * 4);
+  out_frame[i++] = 0; // reserved1
+  out_frame[i++] = 0; // reserved2
+
+  uint8_t channel_idx = findChannelIdx(channel);
+  out_frame[i++] = channel_idx;
+  out_frame[i++] = pkt->isRouteFlood() ? pkt->path_len : 0xFF;
+  out_frame[i++] = (uint8_t)(data_type & 0xFF);
+  out_frame[i++] = (uint8_t)(data_type >> 8);
+  out_frame[i++] = (uint8_t)data_len;
+
+  int copy_len = (int)data_len;
+  if (copy_len > 0) {
+    memcpy(&out_frame[i], data, copy_len);
+    i += copy_len;
+  }
+  addToOfflineQueue(out_frame, i);
+
+  if (_serial->isConnected()) {
+    uint8_t frame[1];
+    frame[0] = PUSH_CODE_MSG_WAITING; // send push 'tickle'
+    _serial->writeFrame(frame, 1);
+  }
+}
+
 uint8_t MyMesh::onContactRequest(const ContactInfo &contact, uint32_t sender_timestamp, const uint8_t *data,
                                 uint8_t len, uint8_t *reply) {
  if (data[0] == REQ_TYPE_GET_TELEMETRY_DATA) {
@@ -859,7 +899,7 @@ void MyMesh::begin(bool has_display) {
  // sanitise bad pref values
  _prefs.rx_delay_base = constrain(_prefs.rx_delay_base, 0, 20.0f);
  _prefs.airtime_factor = constrain(_prefs.airtime_factor, 0, 9.0f);
-  _prefs.freq = constrain(_prefs.freq, 400.0f, 2500.0f);
+  _prefs.freq = constrain(_prefs.freq, 150.0f, 2500.0f);
  _prefs.bw = constrain(_prefs.bw, 7.8f, 500.0f);
  _prefs.sf = constrain(_prefs.sf, 5, 12);
  _prefs.cr = constrain(_prefs.cr, 5, 8);
@@ -1041,7 +1081,7 @@ void MyMesh::handleCmdFrame(size_t len) {
                        ? ERR_CODE_NOT_FOUND
                        : ERR_CODE_UNSUPPORTED_CMD); // unknown recipient, or unsuported TXT_TYPE_*
    }
-  } else if (cmd_frame[0] == CMD_SEND_CHANNEL_TXT_MSG) { // send GroupChannel msg
+  } else if (cmd_frame[0] == CMD_SEND_CHANNEL_TXT_MSG) { // send GroupChannel text msg
    int i = 1;
    uint8_t txt_type = cmd_frame[i++]; // should be TXT_TYPE_PLAIN
    uint8_t channel_idx = cmd_frame[i++];
@@ -1061,6 +1101,46 @@ void MyMesh::handleCmdFrame(size_t len) {
        writeErrFrame(ERR_CODE_NOT_FOUND); // bad channel_idx
      }
    }
+  } else if (cmd_frame[0] == CMD_SEND_CHANNEL_DATA) { // send GroupChannel datagram
+    if (len < 4) {
+      writeErrFrame(ERR_CODE_ILLEGAL_ARG);
+      return;
+    }
+    int i = 1;
+    uint8_t channel_idx = cmd_frame[i++];
+    uint8_t path_len = cmd_frame[i++];
+
+    // validate path len, allowing 0xFF for flood
+    if (!mesh::Packet::isValidPathLen(path_len) && path_len != OUT_PATH_UNKNOWN) {
+      MESH_DEBUG_PRINTLN("CMD_SEND_CHANNEL_DATA invalid path size: %d", path_len);
+      writeErrFrame(ERR_CODE_ILLEGAL_ARG);
+      return;
+    }
+
+    // parse provided path if not flood
+    uint8_t path[MAX_PATH_SIZE];
+    if (path_len != OUT_PATH_UNKNOWN) {
+      i += mesh::Packet::writePath(path, &cmd_frame[i], path_len);
+    }
+
+    uint16_t data_type = ((uint16_t)cmd_frame[i]) | (((uint16_t)cmd_frame[i + 1]) << 8);
+    i += 2;
+    const uint8_t *payload = &cmd_frame[i];
+    int payload_len = (len > (size_t)i) ? (int)(len - i) : 0;
+
+    ChannelDetails channel;
+    if (!getChannel(channel_idx, channel)) {
+      writeErrFrame(ERR_CODE_NOT_FOUND); // bad channel_idx
+    } else if (data_type == DATA_TYPE_RESERVED) {
+      writeErrFrame(ERR_CODE_ILLEGAL_ARG);
+    } else if (payload_len > MAX_CHANNEL_DATA_LENGTH) {
+      MESH_DEBUG_PRINTLN("CMD_SEND_CHANNEL_DATA payload too long: %d > %d", payload_len, MAX_CHANNEL_DATA_LENGTH);
+      writeErrFrame(ERR_CODE_ILLEGAL_ARG);
+    } else if (sendGroupData(channel.channel, path, path_len, data_type, payload, payload_len)) {
+      writeOKFrame();
+    } else {
+      writeErrFrame(ERR_CODE_TABLE_FULL);
+    }
  } else if (cmd_frame[0] == CMD_GET_CONTACTS) { // get Contact list
    if (_iter_started) {
      writeErrFrame(ERR_CODE_BAD_STATE); // iterator is currently busy
@@ -1264,7 +1344,7 @@ void MyMesh::handleCmdFrame(size_t len) {

    if (repeat && !isValidClientRepeatFreq(freq)) {
      writeErrFrame(ERR_CODE_ILLEGAL_ARG);
-    } else if (freq >= 300000 && freq <= 2500000 && sf >= 5 && sf <= 12 && cr >= 5 && cr <= 8 && bw >= 7000 &&
+    } else if (freq >= 150000 && freq <= 2500000 && sf >= 5 && sf <= 12 && cr >= 5 && cr <= 8 && bw >= 7000 &&
        bw <= 500000) {
      _prefs.sf = sf;
      _prefs.cr = cr;
@@ -1620,7 +1700,7 @@ void MyMesh::handleCmdFrame(size_t len) {
  } else if (cmd_frame[0] == CMD_SEND_TRACE_PATH && len > 10 && len - 10 < MAX_PACKET_PAYLOAD-5) {
    uint8_t path_len = len - 10;
    uint8_t flags = cmd_frame[9];
-    uint8_t path_sz = flags & 0x03;  // NEW v1.11+ 
+    uint8_t path_sz = flags & 0x03;  // NEW v1.11+
    if ((path_len >> path_sz) > MAX_PATH_SIZE || (path_len % (1 << path_sz)) != 0) { // make sure is multiple of path_sz
      writeErrFrame(ERR_CODE_ILLEGAL_ARG);
    } else {
@@ -1927,7 +2007,7 @@ void MyMesh::checkCLIRescueCmd() {

      // get path from command e.g: "cat /contacts3"
      const char *path = &cli_command[4];
-      
+
      bool is_fs2 = false;
      if (memcmp(path, "UserData/", 9) == 0) {
        path += 8; // skip "UserData"
@@ -137,6 +137,8 @@ protected:
                           const uint8_t *sender_prefix, const char *text) override;
  void onChannelMessageRecv(const mesh::GroupChannel &channel, mesh::Packet *pkt, uint32_t timestamp,
                            const char *text) override;
+  void onChannelDataRecv(const mesh::GroupChannel &channel, mesh::Packet *pkt, uint16_t data_type,
+                         const uint8_t *data, size_t data_len) override;

  uint8_t onContactRequest(const ContactInfo &contact, uint32_t sender_timestamp, const uint8_t *data,
                           uint8_t len, uint8_t *reply) override;
@@ -163,6 +165,17 @@ protected:
 public:
  void savePrefs() { _store->savePrefs(_prefs, sensors.node_lat, sensors.node_lon); }

+#if ENV_INCLUDE_GPS == 1
+  void applyGpsPrefs() {
+    sensors.setSettingValue("gps", _prefs.gps_enabled ? "1" : "0");
+    if (_prefs.gps_interval > 0) {
+      char interval_str[12];  // Max: 24 hours = 86400 seconds (5 digits + null)
+      sprintf(interval_str, "%u", _prefs.gps_interval);
+      sensors.setSettingValue("gps_interval", interval_str);
+    }
+  }
+#endif
+
 private:
  void writeOKFrame();
  void writeErrFrame(uint8_t err_code);
@@ -213,6 +213,10 @@ void setup() {

  sensors.begin();

+#if ENV_INCLUDE_GPS == 1
+  the_mesh.applyGpsPrefs();
+#endif
+
 #ifdef DISPLAY_CLASS
  ui_task.begin(disp, &sensors, the_mesh.getNodePrefs());  // still want to pass this in as dependency, as prefs might be moved
 #endif
@@ -560,18 +560,6 @@ void UITask::begin(DisplayDriver* display, SensorManager* sensors, NodePrefs* no

  _node_prefs = node_prefs;

-#if ENV_INCLUDE_GPS == 1
-  // Apply GPS preferences from stored prefs
-  if (_sensors != NULL && _node_prefs != NULL) {
-    _sensors->setSettingValue("gps", _node_prefs->gps_enabled ? "1" : "0");
-    if (_node_prefs->gps_interval > 0) {
-      char interval_str[12];  // Max: 24 hours = 86400 seconds (5 digits + null)
-      sprintf(interval_str, "%u", _node_prefs->gps_interval);
-      _sensors->setSettingValue("gps_interval", interval_str);
-    }
-  }
-#endif
-
  if (_display != NULL) {
    _display->turnOn();
  }
@@ -17,6 +17,7 @@
 #define PATH_HASH_SIZE       1

 #define MAX_PACKET_PAYLOAD  184
+#define MAX_GROUP_DATA_LENGTH  (MAX_PACKET_PAYLOAD - CIPHER_BLOCK_SIZE - 3)
 #define MAX_PATH_SIZE        64
 #define MAX_TRANS_UNIT      255

@@ -100,4 +101,4 @@ public:
  }
 };

-}
+}
@@ -22,7 +22,7 @@ namespace mesh {
 #define PAYLOAD_TYPE_ACK         0x03    // a simple ack
 #define PAYLOAD_TYPE_ADVERT      0x04    // a node advertising its Identity
 #define PAYLOAD_TYPE_GRP_TXT     0x05    // an (unverified) group text message (prefixed with channel hash, MAC) (enc data: timestamp, "name: msg")
-#define PAYLOAD_TYPE_GRP_DATA    0x06    // an (unverified) group datagram (prefixed with channel hash, MAC) (enc data: timestamp, blob)
+#define PAYLOAD_TYPE_GRP_DATA    0x06    // an (unverified) group datagram (prefixed with channel hash, MAC) (enc data: data_type(uint16), data_len, blob)
 #define PAYLOAD_TYPE_ANON_REQ    0x07    // generic request (prefixed with dest_hash, ephemeral pub_key, MAC) (enc data: ...)
 #define PAYLOAD_TYPE_PATH        0x08    // returned path (prefixed with dest/src hashes, MAC) (enc data: path, extra)
 #define PAYLOAD_TYPE_TRACE       0x09    // trace a path, collecting SNI for each hop
@@ -353,8 +353,18 @@ int BaseChatMesh::searchChannelsByHash(const uint8_t* hash, mesh::GroupChannel d
 #endif

 void BaseChatMesh::onGroupDataRecv(mesh::Packet* packet, uint8_t type, const mesh::GroupChannel& channel, uint8_t* data, size_t len) {
-  uint8_t txt_type = data[4];
-  if (type == PAYLOAD_TYPE_GRP_TXT && len > 5 && (txt_type >> 2) == 0) {  // 0 = plain text msg
+  if (type == PAYLOAD_TYPE_GRP_TXT) {
+    if (len < 5) {
+      MESH_DEBUG_PRINTLN("onGroupDataRecv: dropping short group text payload len=%d", (uint32_t)len);
+      return;
+    }
+
+    uint8_t txt_type = data[4];
+    if ((txt_type >> 2) != 0) {
+      MESH_DEBUG_PRINTLN("onGroupDataRecv: dropping unsupported group text type=%d", (uint32_t)txt_type);
+      return;
+    }
+
    uint32_t timestamp;
    memcpy(&timestamp, data, 4);

@@ -363,6 +373,23 @@ void BaseChatMesh::onGroupDataRecv(mesh::Packet* packet, uint8_t type, const mes

    // notify UI  of this new message
    onChannelMessageRecv(channel, packet, timestamp, (const char *) &data[5]);  // let UI know
+  } else if (type == PAYLOAD_TYPE_GRP_DATA) {
+    if (len < 3) {
+      MESH_DEBUG_PRINTLN("onGroupDataRecv: dropping short group data payload len=%d", (uint32_t)len);
+      return;
+    }
+
+    uint16_t data_type = ((uint16_t)data[0]) | (((uint16_t)data[1]) << 8);
+    uint8_t data_len = data[2];
+    size_t available_len = len - 3;
+
+    if (data_len > available_len) {
+      MESH_DEBUG_PRINTLN("onGroupDataRecv: dropping malformed group data type=%d len=%d available=%d",
+                         (uint32_t)data_type, (uint32_t)data_len, (uint32_t)available_len);
+      return;
+    }
+
+    onChannelDataRecv(channel, packet, data_type, &data[3], data_len);
  }
 }

@@ -454,6 +481,37 @@ bool BaseChatMesh::sendGroupMessage(uint32_t timestamp, mesh::GroupChannel& chan
  return false;
 }

+bool BaseChatMesh::sendGroupData(mesh::GroupChannel& channel, uint8_t* path, uint8_t path_len, uint16_t data_type, const uint8_t* data, int data_len) {
+  if (data_len < 0) {
+    MESH_DEBUG_PRINTLN("sendGroupData: invalid negative data_len=%d", data_len);
+    return false;
+  }
+  if (data_len > MAX_GROUP_DATA_LENGTH) {
+    MESH_DEBUG_PRINTLN("sendGroupData: data_len=%d exceeds max=%d", data_len, MAX_GROUP_DATA_LENGTH);
+    return false;
+  }
+
+  uint8_t temp[3 + MAX_GROUP_DATA_LENGTH];
+  temp[0] = (uint8_t)(data_type & 0xFF);
+  temp[1] = (uint8_t)(data_type >> 8);
+  temp[2] = (uint8_t)data_len;
+  if (data_len > 0) memcpy(&temp[3], data, data_len);
+
+  auto pkt = createGroupDatagram(PAYLOAD_TYPE_GRP_DATA, channel, temp, 3 + data_len);
+  if (pkt == NULL) {
+    MESH_DEBUG_PRINTLN("sendGroupData: unable to create group datagram, data_len=%d", data_len);
+    return false;
+  }
+
+  if (path_len == OUT_PATH_UNKNOWN) {
+    sendFloodScoped(channel, pkt);
+  } else {
+    sendDirect(pkt, path, path_len);
+  }
+
+  return true;
+}
+
 bool BaseChatMesh::shareContactZeroHop(const ContactInfo& contact) {
  int plen = getBlobByKey(contact.id.pub_key, PUB_KEY_SIZE, temp_buf);  // retrieve last raw advert packet
  if (plen == 0) return false;  // not found
@@ -111,6 +111,8 @@ protected:
  virtual uint32_t calcDirectTimeoutMillisFor(uint32_t pkt_airtime_millis, uint8_t path_len) const = 0;
  virtual void onSendTimeout() = 0;
  virtual void onChannelMessageRecv(const mesh::GroupChannel& channel, mesh::Packet* pkt, uint32_t timestamp, const char *text) = 0;
+  virtual void onChannelDataRecv(const mesh::GroupChannel& channel, mesh::Packet* pkt, uint16_t data_type,
+                                 const uint8_t* data, size_t data_len) {}
  virtual uint8_t onContactRequest(const ContactInfo& contact, uint32_t sender_timestamp, const uint8_t* data, uint8_t len, uint8_t* reply) = 0;
  virtual void onContactResponse(const ContactInfo& contact, const uint8_t* data, uint8_t len) = 0;
  virtual void handleReturnPathRetry(const ContactInfo& contact, const uint8_t* path, uint8_t path_len);
@@ -148,6 +150,7 @@ public:
  int  sendMessage(const ContactInfo& recipient, uint32_t timestamp, uint8_t attempt, const char* text, uint32_t& expected_ack, uint32_t& est_timeout);
  int  sendCommandData(const ContactInfo& recipient, uint32_t timestamp, uint8_t attempt, const char* text, uint32_t& est_timeout);
  bool sendGroupMessage(uint32_t timestamp, mesh::GroupChannel& channel, const char* sender_name, const char* text, int text_len);
+  bool sendGroupData(mesh::GroupChannel& channel, uint8_t* path, uint8_t path_len, uint16_t data_type, const uint8_t* data, int data_len);
  int  sendLogin(const ContactInfo& recipient, const char* password, uint32_t& est_timeout);
  int  sendAnonReq(const ContactInfo& recipient, const uint8_t* data, uint8_t len, uint32_t& tag, uint32_t& est_timeout);
  int  sendRequest(const ContactInfo& recipient, uint8_t req_type, uint32_t& tag, uint32_t& est_timeout);
@@ -100,7 +100,7 @@ void CommonCLI::loadPrefsInt(FILESYSTEM* fs, const char* filename) {
    file.read((uint8_t *)&_prefs->tx_power_dbm, sizeof(_prefs->tx_power_dbm));        // 76
    file.read((uint8_t *)&_prefs->disable_fwd, sizeof(_prefs->disable_fwd));          // 77
    file.read((uint8_t *)&_prefs->advert_interval, sizeof(_prefs->advert_interval));  // 78
-    file.read((uint8_t *)&_prefs->rx_boosted_gain, sizeof(_prefs->rx_boosted_gain));  // 79
+    file.read(pad, 1);                                                                // 79 : 1 byte unused (was rx_boosted_gain in v1.14.1, moved to end for upgrade compat)
    file.read((uint8_t *)&_prefs->rx_delay_base, sizeof(_prefs->rx_delay_base));      // 80
    file.read((uint8_t *)&_prefs->tx_delay_factor, sizeof(_prefs->tx_delay_factor));  // 84
    file.read((uint8_t *)&_prefs->guest_password[0], sizeof(_prefs->guest_password)); // 88
@@ -130,8 +130,8 @@ void CommonCLI::loadPrefsInt(FILESYSTEM* fs, const char* filename) {
    file.read((uint8_t *)&_prefs->gps_interval, sizeof(_prefs->gps_interval));                     // 157
    file.read((uint8_t *)&_prefs->advert_loc_policy, sizeof (_prefs->advert_loc_policy));          // 161
    file.read((uint8_t *)&_prefs->discovery_mod_timestamp, sizeof(_prefs->discovery_mod_timestamp)); // 162
-    file.read((uint8_t *)&_prefs->adc_multiplier, sizeof(_prefs->adc_multiplier)); // 166
-    file.read((uint8_t *)_prefs->owner_info, sizeof(_prefs->owner_info));  // 170
+    file.read((uint8_t *)&_prefs->adc_multiplier, sizeof(_prefs->adc_multiplier));                 // 166
+    file.read((uint8_t *)_prefs->owner_info, sizeof(_prefs->owner_info));                          // 170
    // MQTT settings - skip reading from main prefs file (now stored separately)
    // For backward compatibility, we'll skip these bytes if they exist in old files
    // The actual MQTT prefs will be loaded from /mqtt_prefs in loadMQTTPrefs()
@@ -158,13 +158,15 @@ void CommonCLI::loadPrefsInt(FILESYSTEM* fs, const char* filename) {
      file.read(skip_buffer, to_read);
      remaining -= to_read;
    }
+    file.read((uint8_t *)&_prefs->rx_boosted_gain, sizeof(_prefs->rx_boosted_gain));              // 290
+    // next: 291

    // sanitise bad pref values
    _prefs->rx_delay_base = constrain(_prefs->rx_delay_base, 0, 20.0f);
    _prefs->tx_delay_factor = constrain(_prefs->tx_delay_factor, 0, 2.0f);
    _prefs->direct_tx_delay_factor = constrain(_prefs->direct_tx_delay_factor, 0, 2.0f);
    _prefs->airtime_factor = constrain(_prefs->airtime_factor, 0, 9.0f);
-    _prefs->freq = constrain(_prefs->freq, 400.0f, 2500.0f);
+    _prefs->freq = constrain(_prefs->freq, 150.0f, 2500.0f);
    _prefs->bw = constrain(_prefs->bw, 7.8f, 500.0f);
    _prefs->sf = constrain(_prefs->sf, 5, 12);
    _prefs->cr = constrain(_prefs->cr, 5, 8);
@@ -215,7 +217,7 @@ void CommonCLI::savePrefs(FILESYSTEM* fs) {
    file.write((uint8_t *)&_prefs->tx_power_dbm, sizeof(_prefs->tx_power_dbm));        // 76
    file.write((uint8_t *)&_prefs->disable_fwd, sizeof(_prefs->disable_fwd));          // 77
    file.write((uint8_t *)&_prefs->advert_interval, sizeof(_prefs->advert_interval));  // 78
-    file.write((uint8_t *)&_prefs->rx_boosted_gain, sizeof(_prefs->rx_boosted_gain));  // 79
+    file.write(pad, 1);                                                                // 79 : 1 byte unused (rx_boosted_gain moved to end)
    file.write((uint8_t *)&_prefs->rx_delay_base, sizeof(_prefs->rx_delay_base));      // 80
    file.write((uint8_t *)&_prefs->tx_delay_factor, sizeof(_prefs->tx_delay_factor));  // 84
    file.write((uint8_t *)&_prefs->guest_password[0], sizeof(_prefs->guest_password)); // 88
@@ -246,7 +248,7 @@ void CommonCLI::savePrefs(FILESYSTEM* fs) {
    file.write((uint8_t *)&_prefs->advert_loc_policy, sizeof(_prefs->advert_loc_policy));           // 161
    file.write((uint8_t *)&_prefs->discovery_mod_timestamp, sizeof(_prefs->discovery_mod_timestamp)); // 162
    file.write((uint8_t *)&_prefs->adc_multiplier, sizeof(_prefs->adc_multiplier));                 // 166
-    file.write((uint8_t *)_prefs->owner_info, sizeof(_prefs->owner_info));  // 170
+    file.write((uint8_t *)_prefs->owner_info, sizeof(_prefs->owner_info));                          // 170
    // MQTT settings - no longer saved here (stored in separate /mqtt_prefs file)
    // Write zeros/padding to maintain file format compatibility
 #ifdef WITH_MQTT_BRIDGE
@@ -271,6 +273,8 @@ void CommonCLI::savePrefs(FILESYSTEM* fs) {
      file.write(pad, to_write);
      remaining -= to_write;
    }
+    file.write((uint8_t *)&_prefs->rx_boosted_gain, sizeof(_prefs->rx_boosted_gain));              // 290
+    // next: 291

    file.close();
  }
@@ -619,7 +623,7 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
      uint8_t sf  = num > 2 ? atoi(parts[2]) : 0;
      uint8_t cr  = num > 3 ? atoi(parts[3]) : 0;
      int temp_timeout_mins  = num > 4 ? atoi(parts[4]) : 0;
-      if (freq >= 300.0f && freq <= 2500.0f && sf >= 5 && sf <= 12 && cr >= 5 && cr <= 8 && bw >= 7.0f && bw <= 500.0f && temp_timeout_mins > 0) {
+      if (freq >= 150.0f && freq <= 2500.0f && sf >= 5 && sf <= 12 && cr >= 5 && cr <= 8 && bw >= 7.0f && bw <= 500.0f && temp_timeout_mins > 0) {
        _callbacks->applyTempRadioParams(freq, bw, sf, cr, temp_timeout_mins);
        sprintf(reply, "OK - temp params for %d mins", temp_timeout_mins);
      } else {
@@ -638,7 +642,12 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
     */
    } else if (memcmp(command, "get ", 4) == 0) {
      const char* config = &command[4];
-      if (memcmp(config, "af", 2) == 0) {
+      if (memcmp(config, "dutycycle", 9) == 0) {
+        float dc = 100.0f / (_prefs->airtime_factor + 1.0f);
+        int dc_int = (int)dc;
+        int dc_frac = (int)((dc - dc_int) * 10.0f + 0.5f);
+        sprintf(reply, "> %d.%d%%", dc_int, dc_frac);
+      } else if (memcmp(config, "af", 2) == 0) {
        sprintf(reply, "> %s", StrHelper::ftoa(_prefs->airtime_factor));
      } else if (memcmp(config, "int.thresh", 10) == 0) {
        sprintf(reply, "> %d", (uint32_t) _prefs->interference_threshold);
@@ -905,7 +914,19 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
     */
    } else if (memcmp(command, "set ", 4) == 0) {
      const char* config = &command[4];
-      if (memcmp(config, "af ", 3) == 0) {
+      if (memcmp(config, "dutycycle ", 10) == 0) {
+        float dc = atof(&config[10]);
+        if (dc < 1 || dc > 100) {
+          strcpy(reply, "ERROR: dutycycle must be 1-100");
+        } else {
+          _prefs->airtime_factor = (100.0f / dc) - 1.0f;
+          savePrefs();
+          float actual = 100.0f / (_prefs->airtime_factor + 1.0f);
+          int a_int = (int)actual;
+          int a_frac = (int)((actual - a_int) * 10.0f + 0.5f);
+          sprintf(reply, "OK - %d.%d%%", a_int, a_frac);
+        }
+      } else if (memcmp(config, "af ", 3) == 0) {
        _prefs->airtime_factor = atof(&config[3]);
        savePrefs();
        strcpy(reply, "OK");
@@ -989,7 +1010,7 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
        float bw    = num > 1 ? strtof(parts[1], nullptr) : 0.0f;
        uint8_t sf  = num > 2 ? atoi(parts[2]) : 0;
        uint8_t cr  = num > 3 ? atoi(parts[3]) : 0;
-        if (freq >= 300.0f && freq <= 2500.0f && sf >= 5 && sf <= 12 && cr >= 5 && cr <= 8 && bw >= 7.0f && bw <= 500.0f) {
+        if (freq >= 150.0f && freq <= 2500.0f && sf >= 5 && sf <= 12 && cr >= 5 && cr <= 8 && bw >= 7.0f && bw <= 500.0f) {
          _prefs->sf = sf;
          _prefs->cr = cr;
          _prefs->freq = freq;
@@ -1374,7 +1395,7 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
      }
    } else if (memcmp(command, "sensor set ", 11) == 0) {
      strcpy(tmp, &command[11]);
-      const char *parts[2]; 
+      const char *parts[2];
      int num = mesh::Utils::parseTextParts(tmp, parts, 2, ' ');
      const char *key = (num > 0) ? parts[0] : "";
      const char *value = (num > 1) ? parts[1] : "null";
@@ -1397,7 +1418,7 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
        dp = strchr(dp, 0);
        int i;
        for (i = start; i < end && (dp-reply < 134); i++) {
-          sprintf(dp, "%s=%s\n", 
+          sprintf(dp, "%s=%s\n",
            _sensors->getSettingName(i),
            _sensors->getSettingValue(i));
          dp = strchr(dp, 0);
@@ -1477,8 +1498,8 @@ void CommonCLI::handleCommand(uint32_t sender_timestamp, const char* command, ch
        bool active = !strcmp(_sensors->getSettingByKey("gps"), "1");
        if (enabled) {
          sprintf(reply, "on, %s, %s, %d sats",
-            active?"active":"deactivated", 
-            fix?"fix":"no fix", 
+            active?"active":"deactivated",
+            fix?"fix":"no fix",
            sats);
        } else {
          strcpy(reply, "off");
@@ -3,9 +3,11 @@
 #include <stddef.h>
 #include <stdint.h>

-#define TXT_TYPE_PLAIN          0    // a plain text message
-#define TXT_TYPE_CLI_DATA       1    // a CLI command
-#define TXT_TYPE_SIGNED_PLAIN   2    // plain text, signed by sender
+#define TXT_TYPE_PLAIN          0      // a plain text message
+#define TXT_TYPE_CLI_DATA       1      // a CLI command
+#define TXT_TYPE_SIGNED_PLAIN   2      // plain text, signed by sender
+#define DATA_TYPE_RESERVED      0x0000 // reserved for future use
+#define DATA_TYPE_DEV           0xFFFF // developer namespace for experimenting with group/channel datagrams and building apps

 class StrHelper {
 public:
@@ -0,0 +1,52 @@
+#include <Arduino.h>
+#include <Wire.h>
+
+#include "GAT562EVBProBoard.h"
+
+
+#ifdef NRF52_POWER_MANAGEMENT
+// Static configuration for power management
+// Values set in variant.h defines
+const PowerMgtConfig power_config = {
+  .lpcomp_ain_channel = PWRMGT_LPCOMP_AIN,
+  .lpcomp_refsel = PWRMGT_LPCOMP_REFSEL,
+  .voltage_bootlock = PWRMGT_VOLTAGE_BOOTLOCK
+};
+
+
+void GAT562EVBProBoard::initiateShutdown(uint8_t reason) {
+  // Disable LoRa module power before shutdown
+  digitalWrite(SX126X_POWER_EN, LOW);
+
+  if (reason == SHUTDOWN_REASON_LOW_VOLTAGE ||
+      reason == SHUTDOWN_REASON_BOOT_PROTECT) {
+    configureVoltageWake(power_config.lpcomp_ain_channel, power_config.lpcomp_refsel);
+  }
+
+  enterSystemOff(reason);
+}
+#endif // NRF52_POWER_MANAGEMENT
+
+
+void GAT562EVBProBoard::begin() {
+  NRF52BoardDCDC::begin();
+  pinMode(PIN_VBAT_READ, INPUT);
+
+  // Set all button pins to INPUT_PULLUP
+  pinMode(PIN_BUTTON1, INPUT_PULLUP);
+
+#if defined(PIN_BOARD_SDA) && defined(PIN_BOARD_SCL)
+  Wire.setPins(PIN_BOARD_SDA, PIN_BOARD_SCL);
+#endif
+
+  Wire.begin();
+
+  pinMode(SX126X_POWER_EN, OUTPUT);
+#ifdef NRF52_POWER_MANAGEMENT
+  // Boot voltage protection check (may not return if voltage too low)
+  // We need to call this after we configure SX126X_POWER_EN as output but before we pull high
+  checkBootVoltage(&power_config);
+#endif
+  digitalWrite(SX126X_POWER_EN, HIGH);
+  delay(10);   // give sx1268 some time to power up
+}
@@ -0,0 +1,53 @@
+#pragma once
+
+#include <MeshCore.h>
+#include <Arduino.h>
+#include <helpers/NRF52Board.h>
+
+
+class GAT562EVBProBoard : public NRF52BoardDCDC {
+protected:
+#ifdef NRF52_POWER_MANAGEMENT
+  void initiateShutdown(uint8_t reason) override;
+#endif
+
+public:
+  GAT562EVBProBoard() : NRF52Board("GAT562_OTA") {}
+  void begin();
+
+  #define BATTERY_SAMPLES 8
+
+  uint16_t getBattMilliVolts() override {
+    analogReadResolution(12);
+
+    uint32_t raw = 0;
+    for (int i = 0; i < BATTERY_SAMPLES; i++) {
+      raw += analogRead(PIN_VBAT_READ);
+    }
+    raw = raw / BATTERY_SAMPLES;
+
+    return (ADC_MULTIPLIER * raw) / 4096;
+  }
+
+  const char* getManufacturerName() const override {
+    return "GAT562 EVB Pro";
+  }
+
+#if defined(P_LORA_TX_LED)
+  void onBeforeTransmit() override {
+    digitalWrite(P_LORA_TX_LED, HIGH);   // turn TX LED on
+  }
+
+  void onAfterTransmit() override {
+    digitalWrite(P_LORA_TX_LED, LOW);   // turn TX LED off
+  }
+#endif
+
+  void powerOff() override {
+    uint32_t button_pin = PIN_BUTTON1;
+    nrf_gpio_cfg_input(button_pin, NRF_GPIO_PIN_PULLUP);
+    nrf_gpio_cfg_sense_set(button_pin, NRF_GPIO_PIN_SENSE_LOW);
+    sd_power_system_off(); 
+  }
+
+};
@@ -0,0 +1,52 @@
+[GAT562_Mesh_EVB_Pro]
+extends = nrf52_base
+board = rak4631
+board_check = true
+build_flags = ${nrf52_base.build_flags}
+  ${sensor_base.build_flags}
+  -I variants/gat562_mesh_evb_pro
+  -D NRF52_POWER_MANAGEMENT
+  -D PIN_BOARD_SCL=14
+  -D PIN_BOARD_SDA=13
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+  -D SX126X_CURRENT_LIMIT=140
+  -D SX126X_RX_BOOSTED_GAIN=1
+build_src_filter = ${nrf52_base.build_src_filter}
+  +<../variants/gat562_mesh_evb_pro>
+  +<helpers/ui/MomentaryButton.cpp>
+  +<helpers/sensors>
+lib_deps =
+  ${nrf52_base.lib_deps}
+  ${sensor_base.lib_deps}
+  sparkfun/SparkFun u-blox GNSS Arduino Library@^2.2.27
+
+[env:GAT562_Mesh_EVB_Pro_repeater]
+extends = GAT562_Mesh_EVB_Pro
+build_flags =
+  ${GAT562_Mesh_EVB_Pro.build_flags}
+  -D ADVERT_NAME='"GAT562 EVB Pro Repeater"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D MAX_NEIGHBOURS=50
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${GAT562_Mesh_EVB_Pro.build_src_filter}
+  +<../examples/simple_repeater>
+
+
+[env:GAT562_Mesh_EVB_Pro_room_server]
+extends = GAT562_Mesh_EVB_Pro
+build_flags =
+  ${GAT562_Mesh_EVB_Pro.build_flags}
+  -D ADVERT_NAME='"GAT562 EVB Pro Room Server"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D ROOM_PASSWORD='"hello"'
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${GAT562_Mesh_EVB_Pro.build_src_filter}
+  +<../examples/simple_room_server>
@@ -0,0 +1,58 @@
+#include <Arduino.h>
+#include "target.h"
+#include <helpers/ArduinoHelpers.h>
+
+GAT562EVBProBoard board;
+
+#ifndef PIN_USER_BTN
+  #define PIN_USER_BTN (-1)
+#endif
+
+
+#ifdef DISPLAY_CLASS
+  DISPLAY_CLASS display;
+  MomentaryButton user_btn(PIN_USER_BTN, 1000, true, false, false);
+
+  MomentaryButton back_btn(PIN_BACK_BTN, 1000, true, false, true);
+#endif
+
+
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
+
+WRAPPER_CLASS radio_driver(radio, board);
+
+VolatileRTCClock fallback_clock;
+AutoDiscoverRTCClock rtc_clock(fallback_clock);
+
+#if ENV_INCLUDE_GPS
+  #include <helpers/sensors/MicroNMEALocationProvider.h>
+  MicroNMEALocationProvider nmea = MicroNMEALocationProvider(Serial1, &rtc_clock);
+  EnvironmentSensorManager sensors = EnvironmentSensorManager(nmea);
+#else
+  EnvironmentSensorManager sensors;
+#endif
+
+bool radio_init() {
+  rtc_clock.begin(Wire);
+  return radio.std_init(&SPI);
+}
+
+uint32_t radio_get_rng_seed() {
+  return radio.random(0x7FFFFFFF);
+}
+
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
+  radio.setFrequency(freq);
+  radio.setSpreadingFactor(sf);
+  radio.setBandwidth(bw);
+  radio.setCodingRate(cr);
+}
+
+void radio_set_tx_power(int8_t dbm) {
+  radio.setOutputPower(dbm);
+}
+
+mesh::LocalIdentity radio_new_identity() {
+  RadioNoiseListener rng(radio);
+  return mesh::LocalIdentity(&rng);  // create new random identity
+}
@@ -0,0 +1,29 @@
+#pragma once
+
+#define RADIOLIB_STATIC_ONLY 1
+#include <RadioLib.h>
+#include <helpers/radiolib/RadioLibWrappers.h>
+#include <GAT562EVBProBoard.h>
+#include <helpers/radiolib/CustomSX1262Wrapper.h>
+#include <helpers/AutoDiscoverRTCClock.h>
+#include <helpers/sensors/EnvironmentSensorManager.h>
+
+#ifdef DISPLAY_CLASS
+  #include <helpers/ui/SSD1306Display.h>
+  extern DISPLAY_CLASS display;
+  #include <helpers/ui/MomentaryButton.h>
+  extern MomentaryButton user_btn;
+
+  extern MomentaryButton back_btn;
+#endif
+
+extern GAT562EVBProBoard board;
+extern WRAPPER_CLASS radio_driver;
+extern AutoDiscoverRTCClock rtc_clock;
+extern EnvironmentSensorManager sensors;
+
+bool radio_init();
+uint32_t radio_get_rng_seed();
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
+void radio_set_tx_power(int8_t dbm);
+mesh::LocalIdentity radio_new_identity();
@@ -0,0 +1,49 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+  Copyright (c) 2016 Sandeep Mistry All right reserved.
+  Copyright (c) 2018, Adafruit Industries (adafruit.com)
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library 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 Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "variant.h"
+#include "wiring_constants.h"
+#include "wiring_digital.h"
+#include "nrf.h"
+
+const uint32_t g_ADigitalPinMap[] =
+{
+  // P0
+  0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 ,
+  8 , 9 , 10, 11, 12, 13, 14, 15,
+  16, 17, 18, 19, 20, 21, 22, 23,
+  24, 25, 26, 27, 28, 29, 30, 31,
+
+  // P1
+  32, 33, 34, 35, 36, 37, 38, 39,
+  40, 41, 42, 43, 44, 45, 46, 47
+};
+
+
+void initVariant()
+{
+  // LED1 & LED2
+  pinMode(PIN_LED1, OUTPUT);
+  ledOff(PIN_LED1);
+
+  // pinMode(PIN_LED2, OUTPUT);
+  // ledOff(PIN_LED2);;
+}
+
@@ -0,0 +1,216 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+  Copyright (c) 2016 Sandeep Mistry All right reserved.
+  Copyright (c) 2018, Adafruit Industries (adafruit.com)
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+  This library 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 Lesser General Public License for more details.
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _VARIANT_RAK4630_
+#define _VARIANT_RAK4630_
+
+#define RAK4630
+
+/** Master clock frequency */
+#define VARIANT_MCK (64000000ul)
+
+#define USE_LFXO // Board uses 32khz crystal for LF
+// define USE_LFRC    // Board uses RC for LF
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif // __cplusplus
+
+	/*
+ * WisBlock Base GPIO definitions
+ */
+	static const uint8_t WB_IO1 = 17;	   // SLOT_A SLOT_B
+	static const uint8_t WB_IO2 = 34;	   // SLOT_A SLOT_B
+	static const uint8_t WB_IO3 = 21;	   // SLOT_C
+	static const uint8_t WB_IO4 = 4;	   // SLOT_C
+	static const uint8_t WB_IO5 = 9;	   // SLOT_D
+	static const uint8_t WB_IO6 = 10;	   // SLOT_D
+	static const uint8_t WB_SW1 = 33;	   // IO_SLOT
+	static const uint8_t WB_A0 = 5;		   // IO_SLOT
+	static const uint8_t WB_A1 = 31;	   // IO_SLOT
+	static const uint8_t WB_I2C1_SDA = 13; // SENSOR_SLOT IO_SLOT
+	static const uint8_t WB_I2C1_SCL = 14; // SENSOR_SLOT IO_SLOT
+	static const uint8_t WB_I2C2_SDA = 24; // IO_SLOT
+	static const uint8_t WB_I2C2_SCL = 25; // IO_SLOT
+	static const uint8_t WB_SPI_CS = 26;   // IO_SLOT
+	static const uint8_t WB_SPI_CLK = 3;   // IO_SLOT
+	static const uint8_t WB_SPI_MISO = 29; // IO_SLOT
+	static const uint8_t WB_SPI_MOSI = 30; // IO_SLOT
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT (48)
+#define NUM_DIGITAL_PINS (48)
+#define NUM_ANALOG_INPUTS (6)
+#define NUM_ANALOG_OUTPUTS (0)
+
+// LEDs
+#define PIN_LED1 (35)
+#define PIN_LED2 (36)
+
+#define LED_BUILTIN PIN_LED1
+#define LED_CONN PIN_LED2
+
+#define LED_GREEN  PIN_LED1
+#define LED_BLUE   PIN_LED2
+
+#define LED_STATE_ON 1 // State when LED is litted
+
+// #define P_LORA_TX_LED LED_GREEN
+
+
+/*
+ * Buttons
+ */
+#define PIN_BUTTON1             (9) // Menu / User Button
+#define PIN_BACK_BTN            PIN_BUTTON1
+#define PIN_USER_BTN            PIN_BUTTON1
+
+
+// Analog pins
+#define  PIN_VBAT_READ          (5)
+#define  ADC_MULTIPLIER         (3 * 1.75 * 1.187 * 1000)
+
+
+/*
+ * Analog pins
+ */
+#define PIN_A0 (5)	//(3)
+#define PIN_A1 (31) //(4)
+#define PIN_A2 (28)
+#define PIN_A3 (29)
+#define PIN_A4 (30)
+#define PIN_A5 (31)
+#define PIN_A6 (0xff)
+#define PIN_A7 (0xff)
+
+	static const uint8_t A0 = PIN_A0;
+	static const uint8_t A1 = PIN_A1;
+	static const uint8_t A2 = PIN_A2;
+	static const uint8_t A3 = PIN_A3;
+	static const uint8_t A4 = PIN_A4;
+	static const uint8_t A5 = PIN_A5;
+	static const uint8_t A6 = PIN_A6;
+	static const uint8_t A7 = PIN_A7;
+#define ADC_RESOLUTION 14
+
+// Power management boot protection threshold (millivolts)
+// Set to 0 to disable boot protection
+#define PWRMGT_VOLTAGE_BOOTLOCK 3300   // Won't boot below this voltage (mV)
+// LPCOMP wake configuration (voltage recovery from SYSTEMOFF)
+// AIN3 = P0.05 = PIN_A0 / PIN_VBAT_READ
+#define PWRMGT_LPCOMP_AIN 3
+#define PWRMGT_LPCOMP_REFSEL 4  // 5/8 VDD (~3.13-3.44V)
+
+// Other pins
+#define PIN_AREF (2)
+#define PIN_NFC1 (9)
+#define PIN_NFC2 (10)
+
+	static const uint8_t AREF = PIN_AREF;
+
+/*
+ * Serial interfaces
+ */
+// TXD1 RXD1 on Base Board
+#define PIN_SERIAL1_RX (15)
+#define PIN_SERIAL1_TX (16)
+
+// TXD0 RXD0 on Base Board
+#define PIN_SERIAL2_RX (19)
+#define PIN_SERIAL2_TX (20)
+
+/*
+ * SPI Interfaces
+ */
+#define SPI_INTERFACES_COUNT 1
+
+#define PIN_SPI_MISO (29)
+#define PIN_SPI_MOSI (30)
+#define PIN_SPI_SCK   (3)
+
+	static const uint8_t SS = 26;
+	static const uint8_t MOSI = PIN_SPI_MOSI;
+	static const uint8_t MISO = PIN_SPI_MISO;
+	static const uint8_t SCK = PIN_SPI_SCK;
+
+// LoRa radio module pins for RAK4631
+
+#define  SX126X_POWER_EN (37)
+#define  P_LORA_RESET    (38)
+#define  P_LORA_NSS      (42)
+#define  P_LORA_SCLK     (43)
+#define  P_LORA_MOSI     (44)
+#define  P_LORA_MISO     (45)
+#define  P_LORA_BUSY     (46)
+#define  P_LORA_DIO_1    (47)
+
+#define SX126X_DIO2_AS_RF_SWITCH  true
+#define SX126X_DIO3_TCXO_VOLTAGE   1.8
+
+/*
+ * Wire Interfaces
+ */
+#define WIRE_INTERFACES_COUNT 2
+
+#define PIN_WIRE_SDA (13)
+#define PIN_WIRE_SCL (14)
+
+#define PIN_WIRE1_SDA (24)
+#define PIN_WIRE1_SCL (25)
+
+// QSPI Pins
+// QSPI occupied by GPIO's
+#define PIN_QSPI_SCK 3	// 19
+#define PIN_QSPI_CS 26	// 17
+#define PIN_QSPI_IO0 30 // 20
+#define PIN_QSPI_IO1 29 // 21
+#define PIN_QSPI_IO2 28 // 22
+#define PIN_QSPI_IO3 2	// 23
+
+// On-board QSPI Flash
+// No onboard flash
+#define EXTERNAL_FLASH_DEVICES IS25LP080D
+#define EXTERNAL_FLASH_USE_QSPI
+
+#define GPS_ADDRESS   0x42  //i2c address for GPS
+
+
+// GPS L76KB
+#define GPS_BAUD_RATE           9600
+#define GPS_THREAD_INTERVAL     50
+#define PIN_GPS_TX              PIN_SERIAL1_RX
+#define PIN_GPS_RX              PIN_SERIAL1_TX
+#define PIN_GPS_EN              (33)
+#define PIN_GPS_PPS             (17)
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#endif
@@ -5,8 +5,6 @@ board_check = true
 build_flags = ${nrf52_base.build_flags}
  ${sensor_base.build_flags}
  -I variants/gat562_mesh_tracker_pro
-  -D RAK_4631
-  -D RAK_BOARD
  -D NRF52_POWER_MANAGEMENT
  -D PIN_BOARD_SCL=14
  -D PIN_BOARD_SDA=13
@@ -28,7 +28,7 @@ build_flags =
  -D SX126X_DIO2_AS_RF_SWITCH=true
  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
  -D SX126X_CURRENT_LIMIT=140
-;  -D SX126X_RX_BOOSTED_GAIN=1 - DO NOT ENABLE THIS!
+  -D SX126X_RX_BOOSTED_GAIN=0 ; Default value when 'radio.rxgain' has not been set. Must be OFF for the Station G2, see:
 ;  https://wiki.uniteng.com/en/meshtastic/station-g2#impact-of-lora-node-dense-areashigh-noise-environments-on-rf-performance
  -D DISPLAY_CLASS=SH1106Display
 build_src_filter = ${esp32_base.build_src_filter}
@@ -111,7 +111,7 @@ lib_deps =
  ${esp32_ota.lib_deps}

 [env:ThinkNode_M5_room_server]
-extends = ThinkNonde_M5
+extends = ThinkNode_M5
 build_src_filter = ${ThinkNode_M5.build_src_filter}
  +<../examples/simple_room_server>
 build_flags =