Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards
Origin	-
Chipset	Decawave DW1000
Positioning Accuracy	10cm - 30cm
Communication Protocol	IEEE 802.15.4-2011 UWB
Operating Frequency	3.5 GHz - 6.5 GHz
Interface Type	SPI, UART, GPIO
Supply Voltage	3.3V DC
Max Data Rate	6.8 Mbps
Dimensions	45mm x 35mm x 5mm
Supported Topology	TWR, TDOA, PDoA
Application Scope	Indoor Navigation, Asset Tracking, Robotics

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Reliable for asset tracking

Implemented this in a small warehouse prototype. It handles multipath interference much better than Bluetooth beacons. Very satisfied with the purchase.

Anonymous

Mar 28, 2026

Rating: 5/5

Excellent precision for robotics projects

I used this board for an autonomous robot navigation system. The 10cm accuracy claim holds up well in a controlled indoor environment. Setup with STM32 was straightforward using the provided SDK.

Anonymous

Mar 20, 2026

Rating: 4/5

Great hardware, steep learning curve

The module itself is high quality and the range is impressive. However, be prepared to dig deep into the documentation if you are new to UWB technology. Not a plug-and-play solution for beginners.

Anonymous

Mar 19, 2026

Rating: 3/5

Good but requires external antenna tuning

The board works, but I had to spend extra time optimizing the antenna placement for my specific enclosure to get the advertised range. Good for experts, maybe tricky for casual hobbyists.

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect for academic research

We deployed four of these units for a campus indoor positioning study. The stability of the signal and the low latency make it ideal for real-time tracking experiments.

Anonymous

Mar 12, 2026

Rating: 4/5

Solid performance, good documentation

Works as advertised. The SPI interface is fast and reliable. I deducted one star because the example code could use more comments for complex TDOA configurations.

5 FAQ

Q: Is there a Python library available for this module?

A: While the primary SDK is in C, the community has developed several Python wrappers that communicate via the UART interface. You can find links to these repositories in our developer forum.

Q: What is the maximum operating range indoors?

A: In typical indoor office environments with line-of-sight, you can expect ranges up to 200 meters. In non-line-of-sight conditions with many obstacles, the effective range is usually between 30 to 50 meters while maintaining high precision.

Q: Does it support Two-Way Ranging (TWR)?

A: Absolutely. The BU04 supports both Single-Sided and Double-Sided Two-Way Ranging (SS-TWR and DS-TWR), which are essential for high-accuracy distance measurements between tags and anchors.

Q: Does this board come with antennas included?

A: Yes, the BU04 development board includes onboard PCB antennas suitable for general testing. For specialized applications, external antenna connectors are available on certain variants.

Q: Can this module work with Arduino Uno?

A: Yes, it is compatible with Arduino Uno via the SPI interface. However, due to memory constraints on the Uno, we recommend using an Arduino Mega or an ESP32 for more complex positioning algorithms.

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