Heltec LoRa32 V3
companion budget

Heltec LoRa32 V3

Heltec

EUR 25–45
Facilité pour débutants: ★★★☆☆
warning
Les utilisateurs européens doivent acheter des appareils 868 MHz. Les appareils américains (915 MHz) sont illégaux en Europe.

Caractéristiques

ChipsetESP32-S3 + SX1262
Écran0.96" OLED
BatterieNo (external required)
GPSNon
BluetoothOui
WiFiOui
ÉtanchéitéNon
Puissance TX21 dBm
Fréquence868MHz

Avantages

  • Cheapest entry point
  • Works as companion or repeater
  • WiFi for OTA updates

Inconvénients

  • No built-in battery
  • Requires phone app for messaging
  • Lower TX power than V4

The Heltec LoRa32 V3 is the go-to recommendation for anyone who wants to dip their toes into the MeshCore ecosystem without spending much. At under 15 euros, it is one of the most affordable LoRa boards on the market, and it comes with a small OLED display, Wi-Fi, Bluetooth, and a decent antenna connector. If you just want to see what mesh networking is about, this is where you start.

As a companion device, the V3 pairs with your phone over Bluetooth and lets you send and receive messages through the MeshCore network. It also works well as a simple indoor repeater — plug it into a USB power bank or wall adapter, place it near a window, and it will happily relay packets for your local mesh. The small form factor makes it easy to tuck away almost anywhere.

The trade-offs are predictable at this price point. There is no GPS, no battery management circuit on-board, and the micro-USB connector feels dated compared to newer USB-C devices. The built-in antenna is functional but modest — for best range you will want to attach an external 868 MHz antenna. Despite these limitations, the V3 remains the single best value entry point for MeshCore in Europe, and many experienced operators keep a few on hand as spare repeaters.