Heltec V4 ESP32 LoRa 32 Dev-Board Meshtastic Kit With Battery ESP32-S3 SX1262 28dBm OLED Display for Meshtastic WiFi IoT Arduino

Meshtastic Kit Ready to Run — Heltec V4 LoRa 32 with Battery

Everything you need to build a Meshtastic node, in one kit. The Heltec V4 Dev-Board comes paired with a battery so you can power it up and get on the mesh right away — no hunting for compatible parts. With the ESP32-S3R2, SX1262 LoRa radio at 28dBm, and a protected OLED display, this is one of the most capable and beginner-friendly Meshtastic development boards available.

Whether you're building your first node or expanding a mesh network, the V4 gives you Wi-Fi, Bluetooth, and long-range LoRa in a compact, well-documented package that works with Arduino, PlatformIO, and Meshtastic out of the box.

Key Features

• Includes battery — power it up immediately, no extra purchases needed
• ESP32-S3R2 MCU — dual-core, 2MB PSRAM, 16MB Flash, Wi-Fi & Bluetooth 5.0
• SX1262 LoRa radio — 863–928MHz, 28±1dBm output, -137dBm sensitivity for long range
• Protected OLED display — full-coverage screen bracket keeps the display safe
• 40-pin gold-plated GPIO — reliable connections for prototyping and expansion
• Type-C USB — modern charging and programming interface
• GNSS interface — SH1.25-8Pin connector ready for GPS module add-on
• Dual IPEX1.0 antenna ports — separate connectors for LoRa and 2.4GHz antennas
• Compatible with Meshtastic, LoRaWAN, Arduino & PlatformIO

What's Improved Over V3

• Higher LoRa output power (28dBm vs previous gen)
• ESP32-S3R2 with 2MB PSRAM for more headroom
• Protected screen bracket for display durability
• Gold-plated GPIO pins for better long-term reliability

Specs

• MCU: ESP32-S3R2 (2MB PSRAM, 16MB Flash, 512KB SRAM)
• LoRa: SX1262, 863–928MHz, 28±1dBm TX, -137dBm RX
• Display: Protected OLED
• GPIO: 40-pin, gold-plated
• Interfaces: Type-C USB, SH1.25 battery, SH1.25-8Pin GNSS, LoRa IPEX1.0, 2.4G IPEX1.0
• Battery: 3.3–4.4V (included)
• Operating Temp: -20°C to +70°C
• Dimensions: 51.7 × 25.4 × 10.7mm