---
id: heltec-hardware
title: Heltec device
sidebar_label: Heltec
---

## WiFi LoRa 32 (V2)

* ESP32 - Wifi & Bluetooth
* SX127x - LoRa Transceiver
* Frequency options:
    * 433 MHz
    * 470-510 MHz
    * 863-870 MHz
    * 902-928 MHz
* Built in 0.96 inch OLED display
* U.FL antenna connector
* Reset and Program switches
* No GPS


* Firmware file: `firmware-heltec-1.x.x.bin`
* [Purchase link](https://heltec.org/project/wifi-lora-32/)

[<img src="Heltec WiFi LoRa 32 (V2)" src="/img/hardware/heltec-v2.png" style={{zoom:'25%'}} />](/img/hardware/heltec-v2.png)

* There are two versions of the Heltec (V2). Below is a picture highlighting the visual differences:

[<img src="Heltec WiFi LoRa 32 (V2)" src="/img/hardware/heltec_v2_vs_v21.png" style={{zoom:'25%'}} />](/img/hardware/heltec_v2_vs_v21.png)

* See [hardware update log](https://heltec-automation-docs.readthedocs.io/en/latest/esp32/wifi_lora_32/hardware_update_log.html) for more details