Home HELTEC Mesh Node T114 V2 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz
HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-1
HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-2
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HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-4
HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-5
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HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-1
HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-2
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HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-4
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HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-6

HELTEC Mesh Node T114 V2 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz

SKU: HT-T114D
Type: With Display
Sale price 34,60 €
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📦 From 50€ in Germany, 100€ in the EU, 45€ in the US!
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HELTEC Mesh Node T114 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz-5

HELTEC Mesh Node T114 V2 nRF52840 SX1262 GPS Meshtastic LoRaWAN 868Mhz

The HELTEC Mesh Node T114 is a low-power consumption development board based on the nRF52840 and SX1262, supporting both LoRa and Bluetooth 5.0. Designed for versatility, it integrates various power interfaces ( 5V USB, lithium battery, and solar panel), an optional 1.14-inch TFT display, and GPS module support, providing powerful long-distance communication capabilities, excellent scalability, and a low-power design. This board is perfect for Meshtastic, LoRaWAN, and general IoT development.

Leverage the Heltec nRF52 development environment and libraries to quickly start your LoRa/LoRaWAN projects, or use it as a platform to run other open-source initiatives like Meshtastic.

 

Key Improvements in Rev2.0:

  • Enhanced RF Performance: The PCB has been upgraded from 4 to 6 layers, providing a more complete ground plane for both the RF section and the crystal oscillator.
  • Improved Signal Integrity: The circuit now uses an immersion gold process, enhancing signal transmission.
  • Optimized Layout: Component placement and RF path design have been optimized for the six-layer board structure.
  • Reduced Interference: The direction of the 2.4GHz Bluetooth antenna and IPEX LoRa antenna interface has been adjusted to increase separation and minimize interference.
  • Stable Long Data Packets: The high-frequency Mesh Node T114 can now reliably send long data packets in the "Long_Fast" channel of Meshtastic.

 

Main Features of HELTEC Mesh Node T114 V2

  • Dual Connectivity: MCU nRF52840 (Bluetooth), LoRa chipset SX1262.
  • Optional Display: Powerful display function with an onboard 1.14-inch TFT-LCD display (135(H)RGB x240(V) dots, up to 262k colors).
  • Ultra-Low Power: Deep sleep mode consuming only 11 uA.
  • Wide Operating Range: Suitable for environments from -20 ~ 70℃, 90%RH (Non-condensing).
  • Robust Interface: Type-C USB interface with voltage regulator, ESD protection, short circuit protection, and RF shielding.
  • Arduino Compatibility: Compatible with the Arduino IDE; Heltec provides comprehensive development frameworks and libraries.
  • Flexible Power Options: 1.25*2P LiPo connector, 1.25*2P Solar panel connector.
  • GNSS Ready: 1.25*8P GNSS module connector for GPS integration.

 

Specifications of HELTEC Mesh Node T114 V2

Parameters Description
MCU nRF52840
LoRa Node Chip SX1262
Frequency 470~510MHz; 863~870MHz; 902~928MHZ.
Max. TX Power 21±1dBm
Max. Receiving sensitivity -135dBm@SF12 BW=125KHz
Bluetooth Bluetooth LE: Bluetooth 5, Bluetooth mesh
Hardware Resource USB 2.0, 4 * SPI, 2 * TWI, 2 * UART, 4 * PWM, QPSI, 12S, PDM, QDEC Etc.
Memory 1M ROM, 256KB SRAM
Interface Type-C USB, 2*1.25 lithium battery connector, 2*1.25 solar panel connector, LoRa ANT (IPEX1.0), 8*1.25 GPS module connector, 2*13*2.54 Header Pin
Battery 3~4.2V battery power supply and charge.
Operating Temperature -20 ~ 70 ℃
Dimensions 50.80*22.86mm
Electrical characteristics Deep Sleep: ~11uA; Tracker mode sleep: ~22uA; GPS OFF, TFT OFF: ~9mA; GPS OFF, TFT ON: ~20mA; GPS ON, TFT ON: ~51mA
Display Onboard 1.14 inch TFT-LCD display

 

Highlights

  • Highly Extensible: Integrates multiple power interfaces: 5V USB, lithium battery, solar panel. Provides abundant pins and hardware resources.

  • Low Power Consumption: In Meshtastic low power consumption mode, the current is only 23uA. In LoRaWAN deep sleep mode, the current is only 11uA.

  • Powerful Communication Capability: Supports LoRa and Bluetooth 5.0. Offers an optional 1.14-inch TFT display and GPS module.

  • Protective Design: A transparent plastic support platform is installed between the PCB and the monitor for component protection and heat dissipation.

 

Pin Map

 

Dimension

 

FAQ

  • Can the onboard 2.4GHz antenna be replaced? The 2.4GHz antenna is a multilayer ceramic antenna for Bluetooth communications and cannot be replaced.
  • What development methods does it support?
    • Arduino
    • PlatformIO

    In addition to Meshtastic support, we have also developed a complete LoRaWAN protocol in the nRF52 Arduino framework.

  • What’s the battery socket type? You can find this type of socket by searching “SH1.25 x 2”.
  • What is the maximum size of battery supported by the default casing? The maximum capacity of the shell for carrying batteries is 42 × 28 × 11mm, and the default 3.7V lithium battery size is 40 × 25 × 10mm.
  • How to enter Meshtastic on the screenless version of Mesh Node T114? Just download the screenless version firmware and enter the 123456 password.
  • What is the acceptable battery range for the solar panel connected to Mesh Node 114? 5V~6.5V, it is recommended to connect solar panels with a voltage of around 5V.
  • Regarding the long chars send issue:

    Not long ago, customers reported that some Mesh Node T114 devices running Meshtastic and sending long strings (>50 chars) ONLY in Long-Fast mode (SF11, 250K BW) may occasionally fail.

    • For a detailed description of this matter, please refer to this link:

    https://github.com/meshtastic/firmware/issues/4723#issuecomment-2369336696

    • For a detailed report, Heltec solution, and compensation regarding this matter, please refer to this link:

    https://github.com/meshtastic/firmware/issues/4723#issuecomment-2404889735

  • Does 433MHz and 470MHz version have long chars sending issue?

    After extensive testing, there is NO issue with long packet transmission in 433MHz and 470MHz versions, so they are not included in the compensation list.

    In response to user demand for 433 and 470 hardware V2 versions, our engineers are debugging the corresponding hardware. It will be released soon.

 

Resource

 

Packing List

The default packing list (without optional accessories) includes:

Item Quantity
Mesh Node T114 x1
LoRa Antenna x1
SH1.25×2 Battery Connector x2
2.54 *13 Header Pin x2
L76K GNSS (GPS) x1

 

Projects

Ultrasonic Sensor Distance Measurement with LoRaWAN

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Customer Reviews

Based on 11 reviews
82%
(9)
18%
(2)
0%
(0)
0%
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I
Iris Keller
Works exactly as expected

I bought this for a field node build and the first setup was straightforward. Power behavior was predictable, which matters for battery based nodes. The only thing I would improve is clearer labeling in the quick-start steps.

Thanks for the review. Practical feedback on the Mesh Node T114 V2 nRF52840 SX1262 helps makers choose the right hardware for low-power Meshtastic and LoRaWAN projects.

L
Leo James
Works well after setup

I used this in a small Meshtastic test network and it came online without much effort. Power behavior was predictable, which matters for battery based nodes. It has been running for several days without random resets.

Thank you for choosing OpenELAB. We are glad the nRF52840 SX1262 mesh node supported your low-power Meshtastic and LoRaWAN projects.

V
Victor Lopez
Reliable in daily use

I bought this for a field node build and the first setup was straightforward. I especially liked the Meshtastic; it made troubleshooting much easier. I had to double check the firmware target before flashing, but after that it was smooth.

We appreciate the detailed note. The Mesh Node T114 V2 nRF52840 SX1262 is designed for low-power Meshtastic and LoRaWAN projects, and we are happy it matched your setup.

V
Victor Murphy
Works exactly as expected

I bought this for a field node build and the first setup was straightforward. Range was noticeably better once I paired it with a suitable antenna and tuned the settings. Shipping protection was good, and everything powered up on the first try.

Thanks for sharing your experience with the Mesh Node T114 V2 nRF52840 SX1262. Your feedback helps other customers compare nRF52840 SX1262 mesh node options for low-power Meshtastic and LoRaWAN projects.

M
Morgan Baker
Great board for mesh projects

After a few evenings of testing, this has been stable enough for a real deployment. Range was noticeably better once I paired it with a suitable antenna and tuned the settings. The only thing I would improve is clearer labeling in the quick-start steps.

Thank you for reviewing the Mesh Node T114 V2 nRF52840 SX1262. We are glad this nRF52840 SX1262 mesh node worked well for your low-power Meshtastic and LoRaWAN projects.