Mesh Node T114 development board

Heltec Mesh Node T114 development board, equipped with nRF52840 and SX1262, offers support for LoRa and Bluetooth 5.0 to enhance scalability and achieve low power consumption

* MCU nRF52840 (Bluetooth), LoRa chipset SX1262.
* Powerful display function (optional), onboard 1.14 inch TFT-LCD display contains 135(H)RGB x240(V) dots and can display up to 262k colors.
* Low power consumption, 11 uA in deep sleep.
* Operation condition: -20 ~ 70℃, 90%RH(No condensing).
* Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures.
* Compatible with Arduino, we provide development frameworks and libraries.
* Various Interfaces: 1.25*2P LiPo connector, 1.25*2P Solar panel connector, 1.25*8P GNSS module connector, which greatly increase the extensibility of the board.

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Product introduction

What’s this?

Mesh Node T114 is a development board featuring nRF52840 and SX1262, with support for LoRa and Bluetooth 5.0. Optional accessories include a 1.14 inch TFT display and GPS module. For efficient local delivery in the US, please contact our official distributor Muzi Works, specializing in Heltec products.

Main Features

WiFi kit 32 is a classic IoT Dev-board designed&produced by Heltec Automation(TM), It’s a highly integrated product based on ESP32(including WiFI and BLE), Li-Po battery management system,0.96” OLED are also included. It’s the best choice for smart citites,farms homes,and IoT makers.

Specification

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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
Memory	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
	2132.54 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

Product Description

Low Power Consumption

Meshtastic enter low power consumption mode, the current is only 23uA.Entering LoRaWAN deep sleep mode, the current is only 11uA.

Powerful communication capability

supports LoRa and Bluetooth 5.0.optional 1.14 inch TFT display and GPS module as accessories.

Plastic support plate

A transparent plastic support platform is installed between the PCB and the monitor.Protect the electronic components of the circuit board and enhance its heat dissipation.