Heltec T114 nRF52840 SX1262 LoRa GPS GNSS Meshtastic Node Bluetooth 5.0 Long Range Mesh Radio with TFT Display Solar Battery Powered IoT Development Board for Meshtastic Devices and LoRaWAN

Specifications 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

• Ultra-Low Power nRF52840 & SX1262 for Long-Lasting Deployment: Powered by the nRF52840 MCU and SX1262 LoRa chip, the HELTEC T114 delivers exceptional energy efficiency. Achieve deep sleep current as low as 11μA (LoRaWAN mode) or 23μA in Meshtastic low-power mode—perfect for remote solar meshtastic nodes or battery-powered field applications. Whether you're building a mesh node for environmental monitoring or a LoRa meshtastic repeater, this board ensures months of operation on a single charge.
• Built-in GPS Support for Accurate Location Tracking: The T114 features a dedicated 1.25-8P GNSS module connector, allowing seamless integration with external GPS modules (optional). Ideal for meshtastic GPS tracking, asset monitoring, or mobile Meshtastic devices that require precise location data. Use it to create moving mesh nodes for hiking, vehicle fleets, or disaster response scenarios—all while maintaining ultra-low power consumption.
• Triple Power Inputs: USB, Lithium Battery & Solar Panel: Unmatched flexibility with three power interfaces: Type-C USB for programming, 1.25-2P LiPo connector for 3.7V batteries, and 1.25-2P solar panel connector for true off-grid autonomy. This makes the T114 the ideal core for solar meshtastic node projects, remote weather stations, or sensecap solar node alternatives. Automatic power switching ensures uninterrupted operation.
• Vibrant 1.14-Inch TFT Display for Rich Visual Data: Unlike basic OLEDs, the optional 1.14-inch TFT-LCD (135x240, 262K colors) brings your Meshtastic node to life: display colored maps, signal strength graphs, or neighbor node lists; show GPS coordinates, battery voltage, and mesh routing info. Fully programmable via Arduino libraries, it's perfect for handheld meshtastic starter kits or portable meshcore testbeds where readability matters.
• Arduino-Compatible & Rich Expansion Interfaces: Develop with ease using Heltec's nRF52 framework and Arduino libraries. The board exposes 2×13 2.54mm headers for GPIO, SPI, I2C, UART, PWM; an IPEX (U.FL) connector for external LoRa antennas; and dedicated ports for GPS, battery, and solar. Whether you're prototyping a LoRaWAN sensor node or a full Meshtastic kit, the T114 offers the scalability of heltec v4-class hardware with the low-power benefits of nRF52. Compatible with Meshtastic, Meshcore, and Meshnology projects out of the box.