Heltec WiFi LoRa 32 V2 – ESP32 + LoRa

The Heltec WiFi LoRa 32 V2 is a powerful IoT development platform that combines the ESP32 with the Semtech SX1262 for long-range wireless communication. Designed for LoRaWAN, Meshtastic, and custom LoRa applications, it supports Wi-Fi, Bluetooth, and LoRa connectivity in a compact board. The integrated 0.96-inch OLED display enables real-time status visualization, while onboard USB Type-C, voltage regulation, and multiple GPIO interfaces make development simple and efficient. This board is ideal for long-range sensor networks, smart city devices, environmental monitoring, and mesh communication systems.

Features

- ESP32 dual-core processor with Wi-Fi and Bluetooth

- Integrated SX1262 LoRa transceiver

- Supports LoRaWAN and Meshtastic firmware

- Long-range LoRa communication

- Onboard 0.96-inch OLED display

- USB Type-C for programming and power

- Onboard 3.3V voltage regulation

- Multiple GPIO pins for digital interfacing

- ADC, DAC, and PWM support

- Supports UART, SPI, and I²C communication

- Boot and reset buttons onboard

- LED indicators for status monitoring

- Compact development-ready form factor

- Suitable for IoT and long-range communication projects

Specifications

- Product Type: ESP32 + LoRa Development Board

- Model: Heltec WiFi LoRa 32 (V2)

- Processor: Dual-core 32-bit Tensilica LX6 MCU

- Wireless Module: ESP32

- Wi-Fi Standard: IEEE 802.11 b/g/n

- Bluetooth Support: Bluetooth Classic + BLE

- LoRa Transceiver: SX1262

- LoRa Frequency: 433MHz / 868MHz / 915MHz (Region Dependent)

- Operating Voltage: 3.3V DC

- Input Voltage: 5V via USB Type-C

- GPIO Support: Multiple Digital I/O

- Analog Features: ADC, DAC, PWM

- Communication Interfaces: UART, SPI, I²C, Wi-Fi, Bluetooth, LoRa

- Display: 0.96-inch OLED

- Programming Support: Arduino IDE, Espressif SDK, Meshtastic

- Onboard Buttons: Boot and Reset

- LED Indicators: Yes

- Integrated Antenna: Yes

- Operating Temperature: -20°C to +70°C

- Dimensions: Approximately 51 × 25.5 mm

Links

- 3D Model

- Datasheet

- Heltec ESP (ESP32 & ESP8266) Framework

- Heltec ESP32 Special Library

- User Manual and Related Documents

- Downloadable Resources

Tutorials

- Heltec LoRa ESP32 Module Tutorial