Use this application package to configure your GPIO (General Purpose Input/Output) board (GPIO-K) for use with MegaShift transmission control firmware. Designed specifically for electronic automatic transmission applications, this kit includes all the components needed for 4L60E and 4L80E transmission support, plus a few extras to give you flexibility for custom configurations. Features: Pre-selected components for MegaShift compatibility Supports both 4L60E and 4L80E transmission setups Includes additional parts to allow user-defined input/output experimentation Ideal For: DIY builders looking to build a transmission controller MegaSquirt users expanding into automatic transmission management Custom GPIO-based electronic control applications What's Included: All required components for standard MegaShift GPIO setup Components for 4L60E/4L80E specific configurations Assorted extra parts for experimenting with custom circuits