libpd Unity 5? expected 64 bit architecture

I'm hoping to use libpd with unity to create a simple oscillator controller for android. My problem is that in unity 4, the plug in requires pro version. I was hoping it would work within Unity 5, however I get these errors trying to play my scene. Failed to load 'Assets/Plugins/libpdcsharp.dll', expected 64 bit architecture (IMAGE_FILE_MACHINE_AMD64), but was IMAGE_FILE_MACHINE_I386 DllNotFoundException: Assets/Plugins/libpdcsharp.dll I have zero knowledge on this subject, so I was wondering if someone could point me in the right direction? Thanks