Mesh Node T114 (Rev. 2.0), nRF52840 + SX1262 LoRa Node , Meshtastic and LoRaWAN Compatible

• LoRa Band    : 863~870MHz
• Display : Yes
• GPS     : No
• Shell   : No

Mesh Node T114 je vývojová doska zameraná na spotrebu energie, založená na čipoch nRF52840 a SX1262, ktorá podporuje technológie LoRa a Bluetooth 5.0. Integruje rôzne napájacie rozhrania (5V USB, lítia a solárny panel), voliteľný 1,14-palcový TFT displej a GPS modul ako príslušenstvo a ponúka výkonné bezdrôtové komunikácie na veľké vzdialenosti, škálovateľnosť a nízku spotrebu energie. S vývojovým prostredím a knižnicami Heltec nRF52. Môžete ju použiť na vývoj LoRa/LoRaWAN, ale aj na spustenie niektorých open source projektov, ako sú Meshtastic a Meshcore.

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 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

Description

Pin Map

Docs & Resource

• [Docs] — User Manual
• [Resource] —Heltec nRF52 framework and Lib
• [Resource] —SnapEmu IoT Platform
• [Attachment] — V1.x Shematic diagram
• [Attachment] — V2.x Schematic diagram
• [Attachment] — Datasheet
• [Attachment] — TFT-LCD Datasheet
• [Resource] — Related Resources 

Project

Ultrasonic Sensor Distance Measurement with LoRaWAN