change hall to vr for cam sensor?

[lost]

i used this board as secondary CAM hall sensor, now i need to switch it to secondary VR.
what to add/remove to get it working.
Primary stays VR


pictures are in link of my v3.5 board/same as  3.3

https://imgur.com/a/SwchHA2

[jrussell]

Add the second lm1815 and configure as detailed in the wiki under InputTriggerHardware

[lost]

Thanks, found it!