Mesh Node T114 nRF52840 LoRa SX1262 Bluetooth 5.0 Dev Board

Mesh Node T114 — LoRa & Bluetooth 5.0 Development Board

The Mesh Node T114 is a compact, ultra-low-power development board combining the nRF52840 microcontroller and SX1262 LoRa chip to deliver powerful long-range wireless communication alongside Bluetooth 5.0 and Bluetooth Mesh. Ideal for IoT projects, Meshtastic networks, LoRaWAN deployments, and remote sensor applications, this board packs an impressive feature set into a 50.80 × 22.86 mm footprint. Made in Mainland China.

Key Features

• Dual Wireless: LoRa (SX1262) + Bluetooth 5.0 / Bluetooth Mesh (nRF52840)
• Ultra-Low Power: Deep sleep current as low as ~11 µA — perfect for battery-powered deployments
• 1.14" TFT-LCD Display (optional): 135(H) × 240(V) resolution, 262K colors
• Versatile Power Inputs: 5V USB (Type-C), dual 1.25mm LiPo battery connectors, dual 1.25mm solar panel connectors
• GNSS Expandable: 8×1.25mm GPS module connector for the optional L76K multi-constellation GNSS module
• Rich Peripherals: USB 2.0, 4×SPI, 2×TWI, 2×UART, 4×PWM, QSPI, I2S, PDM, QDEC
• Generous Storage: 1MB ROM + 256KB SRAM
• Open Source Ready: Compatible with Heltec nRF52 environment; supports Meshtastic and LoRaWAN

Technical Specifications

Power Consumption at a Glance

• Deep sleep: ~11 µA
• Tracker mode sleep: ~22 µA
• GPS off, TFT off: ~9 mA
• GPS off, TFT on: ~20 mA
• GPS on, TFT on: ~51 mA

Optional L76K GNSS Module

The compatible L76K GNSS module supports GPS, BDS, GLONASS, and QZSS for multi-constellation joint positioning. Features include a built-in low-noise amplifier, acoustic surface filter, AGNSS support for fast initial fix, and internal active antenna detection and protection circuitry — delivering high-precision positioning even in dense urban environments or under weak signal conditions.

What's in the Box

Package 1: 1× Development Board, 2× Pin Headers, 2× Terminal Wires, 1× Antenna

Package 2: 1× Development Board, 1× Shell, 1× Antenna

Package 3: 1× GPS Module

Note: Battery is NOT included. The board supports a 3–4.2V lithium battery (charged via the on-board circuit).

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Frequently Asked Questions

Q: What programming environment does the Mesh Node T114 nRF52840 support?

A: The Mesh Node T114 uses the Heltec nRF52 development environment and library. It is fully compatible with LoRa and LoRaWAN development workflows and supports popular open-source projects such as Meshtastic, making it a flexible choice for mesh networking enthusiasts and IoT developers.

Q: Can the Mesh Node T114 run on solar power or battery?

A: Yes. The board features dual 1.25mm LiPo battery connectors and dual 1.25mm solar panel connectors, allowing flexible power configurations for off-grid deployments. It accepts a 3–4.2V lithium battery (not included) and can be charged via USB Type-C or a connected solar panel.

Q: What LoRa frequency bands does the SX1262 chip support on this board?

A: The SX1262 LoRa chip on the Mesh Node T114 supports 433–510 MHz and optionally 863–928 MHz frequency bands, with a maximum TX power of 21 ± 1 dBm and a maximum receiving sensitivity of −135 dBm at SF12, BW=125 kHz — providing excellent long-range communication performance.

Q: Is the 1.14-inch TFT-LCD display included with every package?

A: The onboard 1.14-inch TFT-LCD display (135×240 px, 262K colors) is listed as optional and depends on the package or variant selected. Please review the available package options before ordering to confirm which accessories are included.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.