u-connectXplorer

u-connectXplorer is the official companion app for u-blox u-connectXpress wireless modules. It is built for engineers and developers evaluating, integrating, or debugging u-blox short-range modules.

The app supports BLE Central (GATT Client), BLE Peripheral (GATT Server), Wi-Fi analysis, network diagnostics, MQTT, socket terminals, and OTA firmware update — all in one tool.

SUPPORTED u-blox MODULES

NORA-W36 — Wi-Fi 4 + BLE 5.3
NORA-B26 — BLE 6.0 (Channel Sounding Reflector)
NORA-B27 — BLE 6.0 (Channel Sounding Reflector)
NORA-B20 series — BLE 6.0 with DFU OTA (Channel Sounding Reflector)

BLUETOOTH CENTRAL

Scan with name, UUID, RSSI, and Resolvable Set Identifier filters
Full GATT browser — discover services, read, write, subscribe to notifications
GATT profile cards — Battery, Heart Rate, Device Information, Environmental Sensing, Current Time, Automation IO
MTU negotiation up to 247 bytes
Connection dashboard with live RSSI, MTU, and PHY information

SERIAL CONSOLE

u-blox SPS (Serial Port Service) — credit-based flow control
Nordic UART Service (NUS) — bidirectional serial
Throughput tests with live kB/s chart (Echo, TX flood, RX, RTT)

BLE PERIPHERAL (GATT SERVER)

Advertise SPS or NUS for module testing
Standard GATT profiles — Battery, Heart Rate, Environmental, Device Info, HID Keyboard, Current Time
Custom GATT service builder — define your own UUIDs and characteristics

WI-FI TOOLS

Wi-Fi Analyzer — channel spectrum chart, AP list, security and band detection
Wi-Fi Provisioning over BLE (Nordic protocol) — configure modules wirelessly
Wi-Fi RTT (802.11mc FTM) distance ranging on supported phones

NETWORK & IoT TOOLS

Socket Terminal — TCP, UDP, TLS (client and server) with mutual-TLS support
TLS certificate manager — upload PEM certificates, build SecurityContext
MQTT 3.1.1 client — publish, subscribe, QoS, last will, TLS
Network diagnostics — ping with RTT chart and gateway detection, mDNS service discovery, iperf2 bandwidth test, network interface info

FIRMWARE UPDATE OVER BLE

Nordic DFU OTA for nRF-based modules
SMP / mcumgr / SUIT OTA for nRF54 series (NORA-B20)
Firmware browser with version picker

CHANNEL SOUNDING (Android 16+, Bluetooth 6.0 hardware)

Real-time distance measurement with confidence and AoA
Live chart, statistics, CSV export
Demo / simulation mode for trade shows and testing

ADDITIONAL TOOLS

Protocol Analyzer — real-time BLE packet capture, hex + text payload, JSON/CSV export
Tracker detection — AirTag, SmartTag, Tile, Find My Device Network
BLE Chat — peer-to-peer messaging and collaborative drawing over SPS/NUS
Remote control API — JSON-RPC 2.0 WebSocket server for automation

This app does not collect, store, or transmit any personal data. All wireless communication happens directly between your device, your u-blox module, and the destinations you choose.

Recent changes:
• Dice Demo no longer slows down during long sessions
• Fixed memory leaks in BLE scanning, device reconnection, ALMA Demo, Auracast and Wi-Fi Provisioning
• Steadier performance and lower memory use across long scans and repeated connects