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The Heltec Mesh Node T114 is a development board that employs the nRF52840 and SX1262 processors. It supports LoRa communication and Bluetooth 5.0, and provides a variety of power interfaces, including 5V USB, lithium battery, and solar panel connections. Optional accessories include a 1.14-inch TFT display and a GPS module.

Technical Specifications

Chipset

  • MCU: nRF52840 (Bluetooth)
  • LoRa Transceiver: Semtech SX1262

I/O

  • Port: USB-C
  • Buttons: 2

Wireless Information

  • Capabilities:
    • WiFi
    • LoRa/LoRaWAN
    • Bluetooth
  • Antenna:
    • 10cm U.FL to SMA Pigtail Cable
    • U.FL/IPEX antenna connector for LoRa
  • Frequency Options:
    • 433 MHz
    • 470 - 510 MHz
    • 863 - 870 MHz
    • 902 - 928 MHz

Display

  • Type: TFT-LCD
  • Size: 1.14" (2.9 cm)
  • Resolution: 135 x 240
  • Colors: 262k

Power

  • Battery Type: Li-ion pol
  • Amp-Hours: 2000 mAh
  • Battery Interface: 2 x 1.25 mm LiPo Connector
  • Low Power in Deep Sleep: 11uA
  • Additional Power Interfaces:
    • 2 x 1.25 mm Solar Panel Connectors
    • 8 x 1.25mm GNSS module connector

Physical Dimensions

  • Weight: 3 oz (85 g)
  • Length: 2.86 in (72.7 mm)
  • Width: 2 in (50.9 mm)
  • Antenna Length: 6.7 in (17 cm)
  • Depth: 0.78 in (19.7 mm)

What's in the Box

  • Heltec Mesh Node T114 V2 Board
  • 10cm U.FL to SMA Pigtail Cable
  • Universal 868 or 915 MHz Whip Antenna
  • Heltec GPS Module
  • 803160 2000mAh Rechargeable Battery

Operating Conditions

  • Operating Temprature: -4 °F to 158 °F (-20 °C to 70 °C)
  • Humidity: 90% RH (No Condensing)

Additional Information