HELTEC WiFi LoRa ESP32 SX1262 LoRa Node Meshtastic LoRaWAN 868Mhz V3

€14,95
€14,95
€16,95
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🚀 WiFi LoRa 32 V3 – Next-Gen IoT Dev Board by Heltec

The WiFi LoRa 32 V3 is the latest evolution of Heltec Automation’s iconic IoT development board 🛠️—first launched in 2017 and widely loved by makers and developers 👨💻👩🔧.

This upgraded version retains the same pinout as V2 🔁 while integrating:

  • 📡 Wi-Fi

  • 📶 Bluetooth 5 (LE)

  • 📻 LoRa (SX1262)

  • 🖥️ 0.96" OLED display

Perfect for building:

  • 🌐 Meshtastic mesh networks

  • 🏙️ Smart city infrastructure

  • 🏭 Industrial automation

  • 🏠 Home security systems

  • 📦 Custom IoT applications


⚙️ Powered by ESP32-S3 + SX1262

Under the hood:

  • 🧠 ESP32-S3FN8 dual-core processor

  • 📡 SX1262 LoRa transceiver

  • 💻 Supports Arduino, MicroPython, and more


🔌 Designed for Real-World Deployment

  • 🔋 USB Type-C interface

  • 🔋 Onboard lithium battery management

  • 🌱 Low-power design for mobile or fixed use

  • 📶 Robust RF circuit for stable communication

  • 🧩 Flexible expansion options for advanced builds

Whether you're prototyping a Meshtastic node, deploying a LoRaWAN gateway, or crafting a custom wireless solution, the WiFi LoRa 32 V3 is your go-to board for reliable, scalable IoT innovation 💡.

Wireless Mesh & GPS DIY Kit – Based on Heltec LoRa32 V3 868MHZ

Build your own reliable, long‑range communication device with our Wireless Mesh & GPS DIY Kit , powered by the robust Heltec LoRa32 V3 platform – all for under €30 💶. This open‑source 🛠️, portable 🎒 parts bundle includes everything you need to create a compact solution combining offline mesh networking 🔗, GPS tracking 🛰️, OLED display with controls 📟, and ESP32‑S3 Wi‑Fi/BLE connectivity 📶. All components are tested for compatibility ✅, so you can skip the guesswork and start building in minutes. Perfect for outdoor adventure 🏕️, emergency rescue 🚑, IoT prototyping ⚙️, wireless security research 🔐, and STEM education 📚 — your next project starts here 🚀.

Features

🧠 Microprocessor: ESP32-S3FN8 (Xtensa® 32-bit LX7 dual-core, 5-stage pipeline, up to 240 MHz)

📡 LoRa Chip: SX1262 transceiver for long-range communication

🔌 USB Type-C interface with onboard voltage regulation, ESD protection, short-circuit protection, and RF shielding

🔋 Battery Interface: SH1.25-2 connector with integrated lithium battery management (charge/discharge, overcharge protection, voltage detection, auto USB/battery switching)

📟 Display: 0.96" 128×64 OLED screen for debug info, battery status, and more

🌐 Triple wireless: Built-in Wi-Fi, LoRa, and Bluetooth with a 2.4GHz metal spring antenna + IPEX (U.FL) connector for external LoRa antenna

💾 USB-to-Serial: Onboard CP2102 chip for easy firmware flashing and serial debugging

🛠️ Arduino IDE support: Perfect for embedded development and quick prototyping

⚙️ Optimized RF and power design: Great for low-power IoT applications


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*18*2.54 Header Pin
Battery 3.7V lithium battery power supply and charging
Operating Temperature -20 ~ 70 ℃
Dimensions 50.2 * 25.5* 10.2 mm


Pin Map


High light

USB Type C

The power supply, firmware download, and debugging interfaces adopt a more universal USB Type C interface, making development work more convenient.



Plastic Shell

We also made a plastic shell as an optional accessory. Which provide basic protection for the development board.


Onboard OLED Display

The integrated OLED display can be used to show some information such as system status and parameters, making it convenient for users to directly use the entire development board for their own product design.

Wireless Mesh & GPS DIY Kit Wiring:

Encoder A Heltec 5
Encoder G Heltec GND
Encoder B Heltec 6
Encoder Sw1 Heltec 7
Encoder Sw2 Heltec GND
Buzzer + Heltec 45
Buzzer - Heltec GND
Vibro + Heltec 40
Vibro - Heltec GND
GPS VCC Heltec 3V3
GPS RX Heltec 48
GPS TX Heltec 47
GPS GND Heltec GND
BME280 VCC Heltec 3V3
BME280 GND Heltec GND
BME280 SCL Heltec 42
BME280 SDA Heltec 41
HY-4P Black Heltec GND
HY-4P Red Heltec 3V3
HY-4P Yellow Heltec 41
HY-4P White Heltec 42

FAQ

The 2.4GHz antenna is a spring antenna, and there is no additional interface on the board for 2.4GHz wireless signals.

No, the WiFi LoRa 32 don’t have an external PSRAM, if your application need use Bluetooth and Wi-Fi at the same time, you can look into this product: Heltec Wireless Bridge .

  • Arduino
  • Micro Python
  • Platform.io
  • Espressif IDE

We strongly recommend using Arduino. We have complete technical support and provide complete LoRaWAN code for ESP32 Arduino framework .

You can find this type of socket by search “SH1.25 x 2”.

Of course, you can contact our sales staff and provide your ideas.

No, the MCU is different.

It’s caused by the meshtastic setting. Changing the default screen to SSD1306 can solve the problem.

The specific steps are as follows:

“Radio configuration”→”Display”→”Override OLED auto-detect”→”SSD1306”

Docs & Resource


Project


Packing list

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

Item Quantity
WiFi LoRa 32 (V3) x1
LoRa Antenna x1
SH1.25×2 Battery Connector x1
2.54*18 Header Pin x2

Wireless Mesh & GPS DIY Kit - Only Accessories (Without V3)

Item Quantity
Case x1
GY-BME280 (3.3v) x1
NEO-7M GPS moud le x1
Active buzzer 3V x1
Mini Vibration Motor DC 3V x1
Antenna x1
3.7V 974058 3000mAh Lipo Polymer Lithium Battery x1
EC11 rotary encoder x1
HY-4P x1
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