FAQ & SUPPORT

FAQ

Find answers about UWB positioning, intelligent following, development interfaces and project delivery by product line and topic.

15 questions found

Troubleshooting and maintenance

How are anchors and wristband tags paired if several sets become mixed?

UWB Positioning

Answer

They are paired and labeled before delivery. Use the supplied stickers to identify the matching devices.

Troubleshooting and maintenance

Can the system display live centimeter-level trajectories on an outdoor football field?

UWB Positioning

Answer

Yes. The referenced best positioning accuracy is approximately 10cm under suitable conditions.

Troubleshooting and maintenance

What should I check if STLINK cannot connect to the controller?

UWB Positioning

Answer

Check that the STLINK driver is installed and that the four SWD wires—VCC, SWDIO, SWCLK and GND—are correctly connected with good contact.

Troubleshooting and maintenance

Why does the vehicle drift or weave while driving?

Following Vehicles

Answer

Check for unequal tire pressure, different motor parameters and asymmetric mechanical installation. Adjust the remote-control turning-sensitivity setting in the mini program as appropriate.

Troubleshooting and maintenance

What do four beeps at startup mean?

Following Vehicles

Answer

The ultrasonic or LiDAR obstacle-sensor self-test failed. Check for loose cables and blocked or contaminated sensor surfaces.

Troubleshooting and maintenance

What should I do if a tire loses pressure?

Following Vehicles

Answer

The drive wheels use pneumatic tires. Maintain the recommended 45PSI pressure, check regularly and inflate with a bicycle pump or automotive inflator.

Troubleshooting and maintenance

Why does the mini program not find the vehicle?

Following Vehicles

Answer

Confirm that the vehicle is powered on, phone Bluetooth is enabled and WeChat has Bluetooth permission. The mini program searches for nearby vehicles automatically.

Troubleshooting and maintenance

What should I do if a caster wobbles or does not swivel freely?

Following Vehicles

Answer

Adjust the caster-to-chassis nuts so the caster swivels freely while remaining properly supported. Follow the installation guide and ensure all four wheels contact the ground.

Troubleshooting and maintenance

How can I learn environment setup and firmware programming?

UWB Positioning

Answer

Detailed tutorials cover embedded development environment setup and firmware updates without a development environment. Search for Haoru Technology on Bilibili or contact support for the appropriate guide.

Troubleshooting and maintenance

How can I connect a positioning module to a PC without a cable?

UWB Positioning

Answer

Use a wireless serial adapter. The recommended third-party products are references only; contact their suppliers for adapter-specific connection support.

Troubleshooting and maintenance

Why is UWB data sometimes lost?

UWB Positioning

Answer

Check obstruction and interference, including solid walls, metal, glass and dense vegetation. Low anchor mounting can allow people or ground-level objects to block the link; the referenced recommendation is above 1.8m. Move anchors to improve line of sight and check strong electromagnetic interference or metal reflections. See Section 6.3.3 of the relevant manual for obstruction effects.

Troubleshooting and maintenance

Can the standard positioning firmware output CIR information?

UWB Positioning

Answer

Positioning/ranging firmware and CIR acquisition firmware are separate. Modules normally ship with positioning firmware. To acquire CIR, program the compatible module, usually an anchor, with the dedicated CIR firmware. The two programs do not run simultaneously. Check the supplied reference package or ask support for the correct files.

Troubleshooting and maintenance

What should I check if a wristband or remote will not charge?

Automatic Following Kits, Following Vehicles

Answer

Check charging contacts for dirt or oxidation and clean appropriately, such as with an alcohol wipe. Align the wristband's magnetic charging cable; the remote uses Type-C.

Troubleshooting and maintenance

Why does the vehicle not stop at an obstacle?

Automatic Following Kits, Following Vehicles

Answer

Check whether Stop on Obstacle or Obstacle Bypass is selected in the mini program. With obstacle sensing disabled, the vehicle does not react to obstacles. Confirm the mode before operation.

Troubleshooting and maintenance

Why does the vehicle not move in following mode?

Automatic Following Kits, Following Vehicles

Answer

Check that startup passed with two beeps, the tag/remote battery is sufficient, the tag is not blocked by the body or metal, and nearby obstacles are not triggering stop-on-obstacle behavior.

FAQ | Haoru UWB