---
id: heltec
title: HELTEC® Lora 32
sidebar_label: HELTEC® Lora 32
sidebar_position: 7
---

import Tabs from "@theme/Tabs";
import TabItem from "@theme/TabItem";

<Tabs
groupId="heltec"
defaultValue="v3"
values={[
{label: 'Lora32 V1', value: 'v1'},
{label: 'Lora32 V2.0', value: 'v2.0'},
{label: 'Lora32 V2.1', value: 'v2.1'},
{label: 'Lora32 V3', value:'v3'},
{label: 'Wireless Stick Lite V3', value:'Wireless Stick Lite V3'}
]}>
<TabItem value="v1">

:::warning
Not recommended! Very old board with design issues. Support is being phased out. Use V3 in new projects.
:::

- **MCU**
  - ESP32 (WiFi & Bluetooth)
- **LoRa Transceiver**
  - Semtech SX1276
- **Frequency options**
  - 433 MHz
  - 915 MHz
  - 868 MHz
- **Connectors**
  - Micro USB
  - Antenna: U.FL antenna connector

## Features

- Built in 0.96 inch OLED display
- User and Reset switches
- No GPS

## Resources

- Firmware file: `firmware-heltec-v1-X.X.X.xxxxxxx.bin`

</TabItem>
<TabItem value="v2.0">

:::warning
Not recommended because of design issues! Support is being phased out. Use V3 in new projects.
:::

- **MCU**
  - ESP32 (WiFi & Bluetooth)
- **LoRa Transceiver**
  - Semtech SX127x
- **Frequency options**
  - 915 MHz
  - 868 MHz
- **Connectors**
  - Micro USB
  - Antenna: U.FL antenna connector

## Features

- Built in 0.96 inch OLED display
- User and Reset switches
- No GPS

## Resources

- Firmware file: `firmware-heltec-v2.0-X.X.X.xxxxxxx.bin`

</TabItem>
<TabItem value="v2.1">

:::warning
Not recommended because of design issues! Support is being phased out. Use V3 in new projects.
:::

- **MCU**
  - ESP32 (WiFi & Bluetooth)
- **LoRa Transceiver**
  - Semtech SX127x
- **Frequency options**
  - 433 MHz
  - 868 MHz
  - 915 MHz
- **Connectors**
  - Micro USB
  - Antenna: U.FL antenna connector

## Features

- Built in 0.96 inch OLED display
- User and Reset switches
- No GPS

## Resources

- Firmware file: `firmware-heltec-v2.1-X.X.X.xxxxxxx.bin`

</TabItem>
<TabItem value="v3">

- **MCU**
  - ESP32-S3 (WiFi & Bluetooth)
- **LoRa Transceiver**
  - Semtech SX126x
- **Frequency options**
  - 868 MHz
  - 915 MHz
- **Connectors**
  - USB-C
  - Antenna: U.FL antenna connector

## Features

- Built in 0.96 inch OLED display
- User and Reset switches
- No GPS

## Resources

- Firmware file: `firmware-heltec-v3-X.X.X.xxxxxxx.bin`
- Purchase link: [AliExpress](https://www.aliexpress.com/item/1005004970848837.html)

</TabItem>
<TabItem value="Wireless Stick Lite V3">

- **MCU**
  - ESP32-S3 (WiFi & Bluetooth)
- **LoRa Transceiver**
  - Semtech SX126x
- **Frequency options**
  - 433 MHz
  - 868 MHz
  - 915 MHz
- **Connectors**
  - USB-C
  - Antenna: IPEX/u.FL antenna connector

## Features

- No display.
- User and Reset switches.
- Additional GPIO availability.
- No GPS.

### Meshtastic I2C Definitions
- SCL: GPIO47
- SDA: GPIO48

### Pin Map

![HTIT-WSL_V3_PIN_MAP](/img/hardware/HTIT-WSL_V3_PIN_MAP.png)

Image Source: [Heltec](https://resource.heltec.cn/download/Wireless_Stick_Lite_V3/HTIT-WSL_V3.png)

## Resources

- Firmware file: `firmware-heltec-wsl-v3-X.X.X.xxxxxxx.bin`
- Purchase link: [AliExpress](https://www.aliexpress.com/item/1005004839521502.html)

</TabItem>
</Tabs>