RAKwireless has released the RAK3112 WisDuo Module, a compact LoRa + WiFi + BLE module designed for Edge AI applications and Meshtastic UI. Built on the ESP32-S3 SoC and paired with a Semtech SX1262 LoRa transceiver, this new module delivers significantly more computing power and memory compared to the older RAK11200 WisDuo module.
With 16MB of Flash, 8MB of PSRAM, and AI acceleration support, the RAK3112 enables demanding applications like camera and audio processing, Edge ML, and large mesh networks. It also provides a stronger alternative to the pin-compatible RAK11160 STM32 + ESP32-C2 module, particularly for projects that need more than low-power sensing.
Key Specifications
Processing & Memory
- MCU: Espressif ESP32-S3 (Xtensa LX7 dual-core CPU @ 240 MHz)
- AI Acceleration: Vector instructions, ESP-DL, TensorFlow Lite Micro support
- RAM: 512KB SRAM, 8MB PSRAM
- Flash: 16MB
- RTC: 16KB RTC SRAM
Wireless Connectivity
- Wi-Fi: 2.4 GHz Wi-Fi 4
- Bluetooth: BLE 5.0
- LoRa: Semtech SX1262 transceiver
- Frequency Bands: 863 – 928 MHz
- Regional Support: IN865, EU868, AU915, US915, KR920, RU864, AS923 (1/2/3/4)
- Range: >10 km (with optimized antenna)
- Protocols: LoRa P2P, LoRaWAN 1.0.2 (Basics Modem support coming)
Interfaces & Expansion
- I/O: 44 castellated pads
- Interfaces: USB, UART, I²C, SPI, ADC, GPIO
- Antenna Options: Two u.FL connectors or RF pads
Power & Build
- Voltage: 3.0V – 3.6V
- Dimensions: 23 × 15 × 3 mm
- Operating Temp: -40°C to 85°C
Software & Development
The RAK3112 is compatible with:
- Arduino IDE – Fast prototyping with libraries and examples
- ESP-IDF & PlatformIO – Advanced development with full toolchains
- TensorFlow Lite Micro & ESP-DL – Edge AI and ML projects
- The Things Network (TTN) – LoRaWAN integration
⚠️ Note: The module is not currently supported by RAKwireless Rui3 IoT platform, and lacks a direct WisBlock adapter. However, the RAK3312 WisBlock LoRaWAN module (upcoming) will fill that gap in the WisBlock ecosystem.
Applications
- Meshtastic UI projects (long-range mesh networking)
- Edge AI / ML applications (camera & audio inference)
- IoT gateways and dashboards
- LoRaWAN and P2P communication systems
- Industrial automation with wireless UI
Pricing & Availability
The RAK3112 WisDuo module is competitively priced at just $8, making it an affordable yet powerful solution for developers.
- AliExpress: $8 (excluding antenna)
- RAKwireless Store: $8 (excluding antenna)
- Optional Antennas: $3 – $6 (u.FL or RF pad options)
With LoRa + WiFi + BLE in one compact package, the RAK3112 WisDuo is a future-ready module for Edge AI, mesh networking, and IoT projects. Its extended memory, powerful ESP32-S3 MCU, and support for TensorFlow Lite Micro make it stand out from older WisDuo options like the RAK11200.
For developers building Meshtastic nodes, Edge ML devices, or long-range IoT solutions, the RAK3112 WisDuo is a cost-effective and versatile choice.
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