MultiFunPlayer supports Heresphere as a video player, you may wanna have it in between.
https://discuss.eroscripts.com/t/how-to-use-scripts-in-vr-picture-guide-heresphere-whirligig/20477#uquest-2-with-any-device-over-wi-fiu-4
Dunno about connecting it straight from Heresphere. This device uses Bluetooth virtual COM port which means it is recognized as a serial device. If Heresphere uses the Buttplug.io library then there could be a way.