The RAK11721 breakout board integrates the AMA3B1KK-KBR-B0 MCU from Ambiq (Apollo3) with a Semtech SX1262 LoRa transceiver. It is designed as an evaluation platform for the RAK11720 stamp module.

Core Components

• MCU: AMA3B1KK-KBR-B0 (Ambiq Apollo3)

• Wireless: Integrated Bluetooth Low Energy transceiver + SX1262 LoRa transceiver

Board Features

• Pin headers for direct access to RAK11720 pins via jumper wires

• Chip antenna for BLE communication

• RP-SMA female connector for LoRa antenna

Applications

Dual RF capability (LoRa + BLE) enables use in IoT scenarios such as:

• Home automation

• Sensor networks

• Building automation

• IoT network deployments

Firmware

• Preloaded with RUI3-based AT command firmware

• Fully compatible with RAK3172 and RAK4631-R

• Supports custom firmware development via RUI3 API

Variants by LoRaWAN Region

Product Features

• Based on AMA3B1KK-KBR-B0 and SX1262
• Breakout Board for evaluation of the RAK11720
• Onboard chip antenna for BLE
• RP-SMA Female antenna connector for LoRa
• ARM Cortex-M4F
• 1MB Flash and 348KB SRAM
• I/O ports: UART/I2C/SPI/ADC/GPIO
• LoRaWAN 1.0.3 specification compliant
• Supported bands: EU433, CN470, IN865, EU868, AU915, US915, KR920, RU864, and AS923- 1/2/3/4
• LoRaWAN activation via OTAA/ABP
• LoRa Point-to-Point (P2P) communication
• Easy-to-use AT command set via UART interface
• Long-range – greater than 15 km with optimized antenna
• Ultra-low-power consumption of 2.37 A in sleep mode
• Supply Voltage: 1.8 V ~ 3.6 V
• Temperature range: -40 C ~ 85 C
• Size: 25.4 x 32.3 mm

Included in the package:

• 1pc RAK11721 Breakout Board
• 1pc LoRa antenna
• 18pcs Dupont lines

Documentation

• RAK11721 Breakout Board Datasheet
• RAKwireless Unified Interface V3 (RUI3) Documentation
• RUI3 Best Practices
• RUI3 Tips and Tricks