What is RAK3312 WisBlock Core Module for LoRaWAN?

RAK3312 WisBlock Core Module for LoRaWAN combines LoRa, WiFi, and Bluetooth communication into one single low power WisBlock Core module. The dual-core Espressif ESP32-S3 MCU powers the device, paired with Semtech SX1262 LoRa transceivers. The LoRaWAN stack is compliant with V1.0.2, with V1.0.4 support in progress. It controls the Semtech SX1262 LoRa transceiver over its SPI interface.

This is the US 915 Mhz version.

The ESP32-S3 firmware is based on the Espressif Arduino BSP for the ESP32. WiFi and Bluetooth functionality is provided by the Arduino BSP. The LoRa drivers and LoRaWAN V1.0.2 stack are available as an Arduino library.

RAK3312 comes without a default firmware. We provide code examples in our WisBlock Github repo.

Custom firmware for the module, combining the three connectivity options can be developed with Arduino IDE and the Espressif ESP32 BSP or directly using the Espressif ESP-IDF.

This module complies with Class A & C of LoRaWAN 1.0.2 specifications. An upgrade to LoRaWAN stack V1.0.4 is in development and will support Class A, B, & C.

Integrating RAK3312 reduces hardware complexity and accelerates IoT development, ensuring systems can adapt to changing communication needs without redesigning core electronics.

Why it's useful:

• Design efficiency: Simplifies connectivity integration into IoT devices
• Adaptability: Supports multiple use cases across varied environments
• Scalability: Provides a foundation suitable for both prototypes and deployments

Key Features of RAK3312 WisBlock Core Module for LoRaWAN

• LoRa module for Smart City, Smart Agriculture, Smart Industry
• Compact Form Factor: 20 x 30 x 4.5 mm WisBlock Core Module
• I/O ports: UART/I2C/SPI/ADC/GPIO
• Temperature range: -40 °C to +85 °C
• Supply voltage: 2.0 ~ 3.6 V
• Frequency range:
  • 150 MHz to 960 MHz for LoRa
  • 2.4 GHz for WiFi and Bluetooth
• Low-Power Wireless Systems with 7.8 kHz to 500 kHz Bandwidth
• Ultra-Low Power Consumption in sleep mode
• Espressif ESP32-S3 with Xtensa® 32-bit LX7 dual-core microprocessor with 512kB SRAM, 8MB PSRAM and 16MB external Flash
• AT Command Support
• Supported bands: US 915 MHz

If you prefer to have a low power STM32 MCU as the main processor, our RAK11162 with STM32WLE5 MCU and integrated ESP8684 WiFi/BLE modem is an alternative.

Key Benefits of RAK3312 WisBlock Core Module for LoRaWAN

This module supports diverse applications, offering practical advantages that extend beyond basic connectivity.

• Reduces time from concept to field-ready device
• Encourages flexibility in application design
• Provides a foundation for sustainable product lifecycles

Use Case #1: Monitoring in Isolated Locations

A water utility uses sensors with RAK3312 to maintain continuous reporting across remote stations, ensuring operational visibility without reliance on traditional network coverage.

Use Case #2: Smart Agriculture Deployment

Farmers integrated RAK3312 into gateways to link field sensors. This enables reliable data gathering for crop insights and reducing manual oversight in large agricultural areas.

Comparison Table: RAK11162 and RAK3312

What’s in the Box

• 1 pc RAK3312
• 1 pc PCB Antenna for LoRa (MHF-4 Connector)
• 1pc Antenna for Bluetooth Low Energy (MHF-4 Connector)

How to Get Started with RAK3312 WisBlock Core Module for LoRaWAN

• Overview for RAK3312 WisBlock LoRaWAN Module
• Quick Start Guide for RAK3312 WisBlock LoRaWAN + BLE + WiFi Module
• Datasheet for RAK3312 WisBlock LoRaWAN Module