Ai-Thinker BU03- Kit Development Board UWB Module

The BU03-Kit is a UWB development board based on the BU03 (DW3000) module and powered by an STM32F103C8T6 MCU. The BU03 module integrates an onboard antenna, RF circuitry, and power management.

It supports Two-Way Ranging (TWR) and Time Difference of Arrival (TDOA) positioning with up to 10 cm accuracy and a maximum data rate of 6.8 Mbps. Applications include IoT, mobile devices, wearables, and smart home solutions.

Key Features of BU03

• SMD-40 pin package
• Compliant with IEEE 802.15.4-2015 UWB and 802.15.4z (BPRF mode) standards
• Supports channels 5 and 9
• lntegrated MAC layer for extended communication range
• Data rates: 850 Kbps and 6.8 Mbps
• Supports TWR, TDOA, and PDOA positioning
• 10 cm positioning accuracy
• High tag density support
• Integrated hardware AES 256 encryption
• SPI interface and 9 configurable GPIOs
• Programmable transmit power
• Sleep mode current <1 µA, ideal for coin cell battery solutions

Typical Power Consumption (@3.3V, 25°C):

Pin Definitions: