Heltec Mesh Node T114 V2 nRF52840+SX1262 Low Power GPS Tracker with 1.14-inch TFT Display WiFi BLE LoRa for Meshtastic/LoRaWAN

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発送予定時間: 3 日々

により販売されています: 自社製品

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$19.15 /Pc

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(1759 利用可能)

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説明レビュー

T114 V2 Docs

User Manual

Heltec Mesh Node T114 Rev 2.0

Mesh Node T114 has been upgraded to ReV2.0 version with the following changes made:

The circuit board was changed from 4 layers to 6 layers so the RF part and the crystal oscillator part can obtain a more complete ground.
The circuit was changed from lead-free to immersion gold process, which is more friendly to signal transmission.
The position of some components was adjusted.
The RF path was optimized according to the six-layer board structure.
The direction of the 2.4GHz Bluetooth antenna and IPEX LoRa antenna interface was changed to make them farther away.
The data transmission can sent long data packets on meshtastic.

Low Power Characteristcs

Description

Mesh Node T114is a Low Power Consumption development board based on nRF52840 and SX1262, supports LoRa and Bluetooth 5.0 . which integrated various power interfaces (5V USB, lithium battery and solar panel) optional 1.14 inch TFT display and GPS module as accessories, and has powerful long-distance communication capabilities, scalability, and low power design.

With Heltec nRF52 development environment and libraries. you can use it for LoRa/LoRaWAN development work, and also use it to run some open source projects, such as Meshtastic.

Main Features

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.

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 21.25 lithium battery connector 21.25 solar panel connector LoRa ANT (IPEX1.0) 81.25 GPS module connector 213*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

Pin Map

Dimension

Docs & Resource

Packing list

The default packing list without selecting any accessories is as follows:

Item	Quantity
Mesh Node T114	x1
LoRa Antenna	x1
SH1.25×2 Battery Connector	x2
2.54 *13 Header Pin	x2
L76K GNSS (Available when GPS selected)	x1
Protect Shell and Transfer LoRa antenna (Available when Shell selected)	x1