Question: How to use the HMD without a base station? 

If you do not have a base station used for positioning, please uncheck the Lighthouse Positioning solution in the PiTool settings. 

Question: Matters need attention when using the base station for the first time.  

Prompt the PiHome's room setting after the HMD is first connected, follow the wizard prompts to set the room. 

Question: How to use single/dual base stations 

Single base station users should switch the lighthouse to B mode (double base station setting B/C mode), the distance between the HMD and the lighthouse is kept at about 1.5 meters, and the height of the lighthouse from the ground is more than 2 meters. 

Question: The HMD indicates it is not positioned and the controller lighthouse is not ready for use. 

First pick up the HMD, and swing it right and left to the lighthouse several times. If the problem is still not solved, please check this post: