Heltec WiFi LoRa 32 V3 — ESP32-S3 + SX1262 LoRa Development Board (EU868)

The world's most popular Meshtastic board. The Heltec WiFi LoRa 32 V3 combines an ESP32-S3 dual-core processor, SX1262 LoRa transceiver, 0.96" OLED display, WiFi, Bluetooth, and lithium battery management — all on a single compact board. It's the board that most people start their Meshtastic journey with, and for good reason: it works, it's affordable, and the community support is unmatched.

Flash Meshtastic or MeshCore firmware via the web flasher in your browser, pair it with the app on your phone, and you're on the mesh. No soldering, no programming — just plug in and flash.

Key Features

• ESP32-S3 dual-core processor — 240 MHz, 8 MB Flash. Enough power for Meshtastic, MeshCore, LoRaWAN, or your own custom firmware
• SX1262 LoRa transceiver — the current standard in the Meshtastic ecosystem. Full compatibility with all SX1262 and SX127x devices on the mesh
• 0.96" OLED display — view messages, node info, signal strength, and battery status directly on the board
• WiFi + Bluetooth — connect to your phone via Bluetooth for the Meshtastic app, or use WiFi for MQTT gateways and web configuration
• Lithium battery management — onboard charge/discharge circuit, overcharge protection, and automatic USB/battery switching. Connect any 3.7V Li-Po via the SH1.25-2 connector
• IPEX (U.FL) LoRa antenna connector — use the included antenna or upgrade to a higher-gain option
• Type-C USB — for power, firmware flashing, and serial debugging
• EU868 frequency band — licence-free across Europe

What Can You Do with It?

• Meshtastic / MeshCore node — the most common use case. Flash the firmware, connect to the app, send messages off-grid
• Home base station — keep it plugged in at home as a permanent node on your local mesh. Extends range for everyone
• MQTT gateway — bridge your local mesh to the internet via WiFi. Share messages and positions with the global Meshtastic MQTT network
• LoRaWAN sensor node — connect sensors and send data to TTN, ChirpStack, or any LoRaWAN network server
• Custom IoT project — full Arduino and PlatformIO support. Build whatever you want with WiFi + LoRa + Bluetooth on one board

Good to Know

The V3 is an ESP32-based board, which means it consumes more power than nRF52-based devices like the WisMesh Pocket V2. On battery, expect 1–2 days of runtime depending on settings. For multi-day portable use, an nRF52 device is the better choice. For home nodes on mains power, MQTT gateways, or projects that need WiFi — the V3 is ideal.

Looking for more transmit power? The WiFi LoRa 32 V4 is the direct upgrade: same size, same pinout, but with 27 dBm output and a 6-layer PCB. Need GPS? Check the Wireless Tracker V2.

Specs

• MCU: ESP32-S3FN8 (Xtensa 32-bit LX7 dual-core, up to 240 MHz)
• Flash: 8 MB
• LoRa: Semtech SX1262
• Frequency: 868 MHz (EU868)
• LoRa antenna: IPEX (U.FL) connector + included antenna
• WiFi: 802.11 b/g/n (2.4 GHz)
• Bluetooth: BLE 5.0
• Display: 0.96" 128×64 OLED
• USB: Type-C (power, flash, debug)
• Battery: SH1.25-2 connector for 3.7V Li-Po (not included)
• Battery management: Integrated charge/discharge, overcharge protection
• Operating temperature: -20°C to +70°C
• Firmware: Meshtastic, MeshCore, LoRaWAN, Arduino, PlatformIO, ESP-IDF

What's in the Box

• 1 × Heltec WiFi LoRa 32 V3 board
• 1 × 868 MHz LoRa antenna

Note: battery and USB cable are not included. Any 3.7V Li-Po battery with SH1.25-2 connector will work. The board is not pre-flashed — use the Meshtastic Web Flasher or MeshCore Flasher to install firmware in under 2 minutes.

Pair It With

• Flexible LoRa Whip Antenna 868 MHz — compact upgrade antenna that plugs directly into the IPEX connector via a short pigtail cable. Much better performance than the included stock antenna
• WisMesh Pocket V2 (€99) — pair a V3 home node with a portable RAK handheld for the best of both worlds