Heltec Mesh Node T114 (Rev. 2.0), nRF52840 + SX1262, Display + GPS + Shell, 915 MHz
Heltec Mesh Node T114 (Rev. 2.0), nRF52840 + SX1262, Display + GPS + Shell, 915 MHz
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Description ▼
Note: This is the Heltec Mesh Node T114 (Rev. 2.0) for the US band (902–928 MHz), configured with 1.14″ TFT display, with Quectel L76K GPS/GNSS, and with protect shell (plus transfer LoRa antenna). Compatible with Meshtastic, MeshCore, and LoRaWAN.
Mesh Node T114 is a low-power development board based on nRF52840 + SX1262, supporting LoRa and Bluetooth 5.0. It integrates multiple power interfaces (USB Type-C, lithium battery, solar panel), a 1.14-inch TFT display, GPS module, and a protect shell — suited to mesh and tracker use.
KEY FEATURES
- MCU nRF52840 (Bluetooth 5 / BLE / Bluetooth mesh) + LoRa chipset SX1262.
- Band and options: 902–928 MHz, with display, GPS, and protect shell.
- Onboard 1.14-inch TFT-LCD (LH114T-IF03), 135×240, up to 262K colors, with transparent plastic support between PCB and display.
- Quectel L76K GNSS module included (SH1.25-8P connector on the board).
- Protect shell and transfer LoRa antenna included. Shell battery bay max ~42 × 28 × 11 mm; example cell 40 × 25 × 10 mm (battery not included).
- Low power: LoRaWAN deep sleep ~11 µA; Meshtastic low-power mode ~23 µA. Tracker mode sleep ~22 µA; GPS ON + TFT ON ~51 mA.
- Type-C USB with voltage regulation, ESD / short-circuit protection, and RF shielding measures.
- Interfaces: SH1.25×2 LiPo, SH1.25×2 solar, SH1.25×8 GNSS, LoRa ANT (IPEX 1.0), onboard 2.4 GHz BT ceramic antenna, 2×13×2.54 header pins.
- Development: Arduino / Heltec nRF52 framework & libraries, PlatformIO. Open-source projects: Meshtastic, MeshCore; LoRaWAN also available in the nRF52 Arduino framework.
- Hardware V2 (vs V1): 6-layer PCB, immersion-gold process, RF path / BT–LoRa antenna spacing improvements; HF T114 can stably send long Meshtastic LongFast packets after V2.
SPECIFICATIONS
| Category | Details |
| Product Name | Mesh Node T114 (Rev. 2.0) — 902–928 MHz, with display, GPS, and shell |
| Hardware Revision | Rev. 2.0 |
| MCU | nRF52840 |
| LoRa Chip | SX1262 |
| LoRa Frequency | 902–928 MHz (US915 / commonly called 915 MHz) |
| Max TX Power | 21±1 dBm |
| Max Receive Sensitivity | −135 dBm @ SF12, BW 125 kHz |
| Bluetooth | Bluetooth LE, Bluetooth 5, Bluetooth mesh (onboard multilayer ceramic 2.4 GHz antenna — not replaceable) |
| Memory | 1 MB ROM; 256 KB SRAM |
| Display | 1.14-inch TFT-LCD, 135×240, 262K colors (module LH114T-IF03) |
| GPS / GNSS | Quectel L76K module + cable |
| Shell | Protect shell + transfer LoRa antenna |
| Interfaces | Type-C USB; 2× SH1.25 LiPo; 2× SH1.25 solar; LoRa ANT (IPEX 1.0); 8×1.25 GPS connector; 2×13×2.54 headers |
| Battery / Solar | Battery 3–4.2 V charge/supply (SH1.25×2). Solar input: ~5 V panels recommended; acceptable range 5–6.5 V. Battery not included. |
| Operating Temperature | −20 ~ 70 ℃; 90% RH (no condensing) |
| Board Dimensions | 50.80 × 22.86 mm (PCB) |
| Product Weight | 35 g |
| Compatibility | Meshtastic, MeshCore, LoRaWAN, Arduino, PlatformIO |
WHAT'S INCLUDED
- 1 × Mesh Node T114 board (902–928 MHz) with 1.14″ TFT display
- 1 × LoRa Antenna
- 2 × SH1.25×2 Battery / solar connectors
- 2 × 2.54×13 Header Pins
- 1 × Quectel L76K GNSS module
- 1 × Protect Shell and transfer LoRa antenna
NOTES
- This product is the 902–928 MHz configuration with display, GPS, and shell. Screenless / no-GPS / no-shell / other-band configurations are separate.
- Use Meshtastic / Heltec firmware appropriate for T114 with display (screenless builds use a different setup path).
- Battery is not included — use a compatible 3.7V Li-Ion / Li-Po with an SH1.25×2 connector that fits the shell bay if you use the case.
- Onboard 2.4 GHz Bluetooth ceramic antenna cannot be replaced.
- Docs: product page, wiki overview, user docs, datasheet.
VIDEOS
Official Heltec introduction and operation guide for the Mesh Node T114.
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SKU:U0823
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