Heltec WiFi LoRa 32 V4 ESP32-S3 SX1262 Meshtastic Compatible IoT Development Board
1. High-Performance ESP32-S3 Platform – Dual-core Xtensa LX7 processor for advanced IoT workloads
2. Long-Range LoRa Communication – SX1262 transceiver with high sensitivity and stable transmission
3. Multi-Protocol Connectivity – Supports Wi-Fi (802.11 b/g/n), Bluetooth 5.0 (LE & Mesh), and LoRa
4. Large Memory Resources – 16MB Flash + 2MB PSRAM for complex applications
5. GNSS Expansion Ready – SH1.25-8Pin interface for GPS module integration
6. Compact & Developer Friendly – Designed for rapid prototyping and embedded development
In The Box: 1 × Heltec WiFi LoRa 32 V4 Board, 1 × LoRa Antenna, 2 × SH1.25 Connector Cables (Battery & Solar), 2 × 2.54 Pin Headers (18-pin), 2 × 2.54 Pin Headers (2-pin)
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Heltec WiFi LoRa 32 V4 ESP32-S3 SX1262 Meshtastic Compatible IoT Development Board
Heltec LoRa 32 V4 LoRa Development Board
The Heltec WiFi LoRa 32 V4 is a high-performance IoT development board built around the ESP32-S3R2 dual-core processor and SX1262 LoRa transceiver.
Quality ESP32 S3 board integrates Wi-Fi, Bluetooth 5 (LE & Mesh), and long-range LoRa communication into a compact, low-power platform designed for next-generation IoT and Meshtastic applications.
With enhanced processing capability, optimized power management, solar input support, and GNSS interface expansion, this board is ideal for developers building scalable wireless sensor networks, outdoor tracking systems, and industrial IoT solutions.
Up to 28 dBm transmission power (high-power version). Deep sleep consumption below 20μA. USB Type-C, lithium battery, and solar input power supply methods support.
Kindly Note
This is the WiFi LoRa 32 V4 standard version. V4 is compatible with most V3 applications, but some LoRa transmission parameters may require adjustment due to upgraded RF performance.
Docs & Resources
- User Manual & Documentation
- Schematic (V4.2)
- Expansion Board Guide
- Download Center
- ESP32 Development Framework
Take a Closer Look
Specification
| Item | Specification |
|---|---|
| MCU | ESP32-S3R2 (Xtensa LX7 dual-core) |
| LoRa Chip | SX1262 |
| Frequency Range | 863–928MHz (High Power) / 433–928MHz (Low Power) |
| Max TX Power | Up to 28 dBm |
| Receiving Sensitivity | -137 dBm @ SF12, BW=125KHz |
| Wi-Fi | 802.11 b/g/n (up to 150Mbps) |
| Bluetooth | Bluetooth 5.0 (BLE & Mesh) |
| Memory | 16MB Flash / 2MB PSRAM / 512KB SRAM |
| Interfaces | USB Type-C, GNSS port, battery & solar input, IPEX antenna |
| Battery | 3.3V–4.4V lithium battery |
| Operating Temperature | -20°C ~ 70°C |
| Dimensions | 51.7 × 25.4 × 10.7 mm |