How should I connect the vive focus bluetooth with vzbutton ?

[wmlabsteam]

Thank you for your listening and your answer. We currently get the bluetooth signal from the crank sensor in vive focus device, and even use sensor to move the bike in the game. Could you tell me what error will be found when We use the vzfit sensor in vive focus. Because we had some problems in the game about "java.lang.NullPointerException" in "com.virzoom.pluginapp.MainActivity.mediaNext". I'm not sure whether it is the problem that vzfit unsupports?