Ai-Thinker BU01 UWB Positioning Module

The BU01 is an ultra-wideband (UWB) positioning module developed by Ai-Thinker, based on the Decawave DW1000 chip. It features an integrated PCB antenna, RF circuitry, power management, and clock system—all in a compact form factor. Supporting two-way ranging (TWR) and time difference of arrival (TDOA) positioning, it offers high-precision indoor localization with accuracy up to 10 cm and data transmission rates reaching 6.8 Mbps. Ideal for applications such as smart parking, personnel tracking in nursing homes, and other indoor navigation systems.

Specifications:

• Model: BU01

• Package: SMD-24

• Dimensions: 24 × 13 × 2.9 mm (±0.2 mm)

• Protocol: IEEE 802.15.4-2011 UWB

• Interface: SPI

• Frequency Range: 3.5 GHz – 6.8 GHz

• Antenna: Onboard PCB antenna (up to 40 m transmission distance)

• Transmit Power: 16 dBm ±2 dB (802.11b equivalent)