Heltec V3
Popular and proven entry-level device for the MeshCore network. Compact LoRa radio with OLED screen.
Important: 868 MHz for Europe
Always buy the 868 MHz version for use in Europe. The 915 MHz version (US) is not allowed in Europe.
What is the Heltec V3?
The Heltec WiFi LoRa 32 V3 is one of the most popular devices for the MeshCore network. This compact board combines a powerful ESP32-S3 processor with an SX1262 LoRa chip, allowing you to send messages over long distances without internet or cellular network.
With the built-in 0.96" OLED screen you can directly see what's happening on the network. The Heltec V3 is ideal for people with some technical knowledge looking for a reliable and affordable MeshCore radio.
The device is proven in the community and is used by thousands of users worldwide for off-grid communication, emergency preparedness and experimenting with mesh networks.
Technical Specifications
| Chipset | ESP32-S3 (Xtensa LX7 dual-core, 240 MHz) + SX1262 LoRa |
| LoRa Frequency | 868 MHz (EU) - Note: buy the correct version! |
| Display | 0.96" OLED, 128x64 pixels |
| Battery | External 3.7V Li-ion via SH1.25-2 connector (not included) |
| GPS | No (not built-in) |
| WiFi / Bluetooth | WiFi 802.11 b/g/n + Bluetooth 5.0 LE |
| Dimensions | 50.2 x 25.5 x 10.2 mm (very compact) |
| Special Features | USB-C, 21 dBm TX power, -134 dBm sensitivity, 8MB Flash, lithium battery management |
Detailed Description
The Heltec V3 is the third generation of Heltec's popular WiFi LoRa series. The board is designed for IoT applications and mesh networks, and is supported out-of-the-box by both MeshCore and Meshtastic firmware.
Thanks to the ESP32-S3 chip you have access to WiFi and Bluetooth, allowing you to configure the device via your smartphone or laptop. The SX1262 LoRa chip offers excellent performance with a range of several kilometers in open terrain.
Note: The Heltec V3 is often sold as a bare circuit board. For practical use you also need a case, antenna and battery. Preferably buy a complete kit to avoid disappointment.
Buy Heltec V3
The Heltec V3 is available on AliExpress. Tip: Buy a complete kit with antenna, case and battery for the best experience.
View on AliExpressMake sure to select the 868 MHz version for Europe
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