WiFi LoRa 32 V4 ESP32-S3R2 IoT Dev Board | 0.96" OLED Display
WiFi LoRa 32 V4 ESP32-S3R2 IoT Dev Board | 0.96" OLED Display
WiFi LoRa 32 V4 – ESP32-S3R2 Tri-Mode IoT Development Board
The WiFi LoRa 32 V4 is the fully upgraded evolution of the classic LoRa development board series, powered by the ESP32-S3R2 main controller and the SX-1262 LoRa chip. Built for developers, makers, and IoT engineers who demand maximum range, flexible connectivity, and rich hardware resources in a compact form factor, this board delivers on every front — from boosted transmit power to a new solar charging interface.
Made in Mainland China.
Key Features
- Tri-Mode Connectivity: Simultaneous Wi-Fi (802.11 b/g/n), Bluetooth LE / BT5 / BT Mesh, and LoRa — all in a single compact module.
- High-Power LoRa: SX-1262 chip with up to 28±1 dBm transmit power and –137 dBm receive sensitivity for long-range, low-power wireless links.
- 0.96" OLED Display: SSD1315 driver, 128×64 resolution — ideal for displaying sensor readings, status messages, and debug info on the device.
- Ample Memory: 16MB external flash + 2MB PSRAM for UI-rich and complex embedded applications.
- USB Type-C Interface: Integrated voltage regulation, ESD protection, short-circuit protection, and RF isolation. Ultra-low standby consumption of <20 µA.
- Solar & Battery Ready: New SH1.25-2P solar panel connector plus optimised lithium battery management for off-grid deployments.
- GNSS Expansion: New SH1.25-8Pin GNSS interface (GPS module kit available) for asset tracking and location-aware applications.
- V3-Compatible Pinout: Form factor and pin layout are fully compatible with the WiFi LoRa 32 V3, making upgrades seamless.
- Durable PC Screen Protector: Cast polycarbonate shell protects the OLED, with an integrated 2.4 GHz FPC antenna for reliable wireless performance.
- Wide Operating Temperature: –40°C to 85°C (OLED: –40°C to 70°C) — suitable for demanding indoor and outdoor environments.
Technical Specifications
| Main Controller | ESP32-S3R2 |
| LoRa Chip | SX-1262 |
| LoRa Frequency | 433–510 MHz & 863–928 MHz |
| Max Transmit Power | 21±1 dBm / 28±1 dBm |
| Max Receive Sensitivity | –137 dBm |
| Wi-Fi | 802.11 b/g/n, up to 150 Mbps |
| Bluetooth | BLE, Bluetooth 5, Bluetooth Mesh |
| OLED Display | SSD1315, 0.96-inch, 128×64 px |
| Storage | 384KB ROM | 512KB SRAM | 16KB RTC-SRAM | 16MB Flash | 2MB PSRAM |
| Power Supply | 5V via USB or solar; 3.3–4.2V via battery |
| Hardware I/O | 7× ADC1, 2× ADC2, 7× Touch, 3× UART, 2× I2C, 2× I2S, 4× SPI |
| Interfaces | USB Type-C, SH1.25-2P battery & solar, 2× IPEX1.0 ANT, 2× 18-pin 2.54mm headers |
| Dimensions | 51.7 × 25.4 × 10.7 mm |
| Operating Temperature | –40°C to 85°C |
Ideal Application Scenarios
- Smart cities & smart home automation
- Industrial IoT & industrial control systems
- Smart agriculture & environmental sensing
- Asset tracking & GNSS positioning
- Remote wireless meter reading
- Security & wireless alarm systems
- DIY maker projects & prototyping
What's in the Box
- List 1: Development Board Kit × 1 (Standard Model)
- List 2: Development Board Kit × 1 (With GPS Module)
Select your preferred option at checkout.
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Frequently Asked Questions
Q: What is the difference between the WiFi LoRa 32 V4 and the V3 version?
A: The V4 features the newer ESP32-S3R2 chip (vs ESP32 on V3), higher LoRa transmit power (up to 28±1 dBm), a new solar charging interface (SH1.25-2P), a new GNSS expansion interface (SH1.25-8Pin), and an updated USB Type-C port with enhanced protection circuits. The form factor and pinout remain backward-compatible with the V3.
Q: What LoRa frequencies does the WiFi LoRa 32 V4 support?
A: The board supports two frequency bands: 433–510 MHz and 863–928 MHz, covering common ISM band frequencies used worldwide including EU868, US915, AU915, and AS923.
Q: Can the WiFi LoRa 32 V4 be powered by a solar panel?
A: Yes. The V4 introduces a new SH1.25-2P solar panel interface alongside optimised lithium battery management, making it well-suited for off-grid or field-deployed IoT nodes that need to harvest solar energy.
Q: Does the board include a GPS module?
A: The standard kit (List 1) does not include a GPS module. List 2 bundles the board with a GPS module. Both options are selectable at checkout. The GNSS interface (SH1.25-8Pin) is present on all V4 boards for easy expansion.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.