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Heltec Meshtastic IOT Lora Wireless Stick V3 esp32 Wifi Lora Development Board Oled Display 433HMZ/868MHZ/915MHZ

Heltec Meshtastic IOT Lora Wireless Stick V3 esp32 Wifi Lora Development Board Oled Display 433HMZ/868MHZ/915MHZ

Regular price $52.80 USD
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SPECIFICATIONS

Brand Name: Heltec Automation

 


Product Information:


HTIT-WS is a development board for Wi-Fi, Bluetooth and LoRa. Its functions are basically the same as “WiFi Lora 32”, except that the screen is reduced to 0.49 inch and a shielding shell is added.
The HTIT-WS is composed up of an MCU (
ESP32-S3FN8) and Semtech LoRa Transceivers (SX1262), perfectly support Arduino®. Users can easily carry out secondary development and application.



Docs & Resource

We provide a comprehensive set of standard LoRaWAN libraries for our products.



Main Features:


  • Microprocessor: ESP32-S3FN8 (Xtensa® 32-bit LX7 dual core processor, five stage pipeline rack Structure, main frequency up to 240 MHz).

  • SX1262 LoRa node chip.

  • Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures.

  • Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching).

  • Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal spring antenna, reserved IPEX (U.FL) interface for LoRa use.

  • Onboard 0.49-inch 64*32 dot matrix OLED display, which can be used to display debugging information, battery power, and other information.

  • Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing.

  • Support the Arduino development environment.

  • We provide ESP32 + LoRaWAN protocol Arduino® library, this is a standard LoRaWAN protocol that can communicate with any LoRa gateway running the LoRaWAN protocol. In order to make this code running, a unique license is needed.

  • With good RF circuit design and low-power design.




Compared to WiFi LoRa 32 (V2), V3 has made the following upgrades:



Item

Wireless Stick (V2)

WiFi LoRa 32 (V3)

MCU

ESP32-D0

ESP32-S3

LoRa Node Chip

SX1276

SX1262

USB Socket

Micro USB

USB Type C

Crystal Oscillator

Ordinary crystal oscillator

High precision temperature compensated crystal oscillator

Low Power Features in Deep Sleep

≈800uA

<10uA

Other Update


Better impedance matching of RF circuits.




Specifications:



Parameters

Description

Master Chip

ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor)

LoRa Node Chip

SX1262

USB to Serial Chip

CP2102

Frequency

470~510MHz,

863~928MHz

Max. TX Power

21±1dBm

Max. Receiving sensitivity

-134dBm@SF12 BW=125KHz

Wi-Fi

802.11 b/g/n, up to 150Mbps

Bluetooth

Bluetooth 5 (LE)

Hardware Resource

7*ADC1 + 2*ADC2;

7*Touch;

3*UART;

2*I2C;

2*SPI; etc.

Memory

384KB ROM;

512KB SRAM;

16KB RTC SRAM;

8MB SiP Flash

Interface

Type-C USB;

2*1.25 lithium battery interface;

LoRa ANT(IPEX1.0);

2*17*2.54 Header Pin

Battery

3.7V lithium battery power supply and charging

Operating Temperature

-20 ~ 70 ℃




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