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General Purpose Inputs & Outputs

The GPIO (general purpose input/ output) board has a variety of functions – the first released application is the MegaShift automatic transmission controller, but it has circuitry capable of many other functions. It’s possible to modify one to be an ignition controller, record EGTs, or many other applications if you have the right parts. Because of the GPIO’s flexibility, we offer these kits a bit differently. There is a GPIO base kit that includes the GPIO board, all SMD parts, case, and pigtail harness. The application-specific parts are sold as separate kits, allowing you to customize the GPIO board for your specific use.

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  • JimStim 1.5 MegaSquirt Stimulator with Wheel Simulator – Assembled


    DIYAutoTune Part# JimStim-C This is a newer version of the stimulator, designed by James Murray (jsmcortina on the forums) that expands on the original stim's features. The main improvement comes with the addition of a microcontroller which allows the ...

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  • 6 Circuit Switch Panel


    Six circuit race car switch panel with heavy duty switchgear. This includes one momentary switch for your starter, and five lighted on-off switches. The on-off switches have resettable circuit breakers instead of fuses, so if you need to get your race veh...

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  • GPIO Basic Kit – Black Case


    This is a starting point for your GPIO (General Purpose Input/ Output) project. Because of the number of ways the GPIO can be built, we've opted to offer it as a basic kit to which you can add application packages to customize it for the MegaShift code, E...

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  • GPIO Application Kit – EGT Input


    Single EGT input kit using AD595AQ amplifier chip. Intended for use on the GPIO board, but could be used anywhere you wish to take our EGT probes or other K-type thermocouples and convert their signal to a 0-5 volt output. This includes enough parts to po...

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  • GPIO Application Kit – MegaShift


    Use this application package to set up your GPIO (General Purpose Input/ Output) board (GPIO-K) for MegaShift.  Includes the 4L60E and 4L80E build guide items.  We've also included some extra components in case you're looking to change some features or ...

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  • TransStim PCB


    The TransStim simulates a 4L60E transmission, and several others. This is the bare PCB to make one TransStim. Use it to test your MegaShift or other transmission controller. The TranStim™ will help you to: Validate and troubleshoot a newly built ...

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  • Jumper 10-Pack


    10-pack of wire jumpers in 5 colors. These fit 0.1" headers and are used on the JimStim to make connections for testing additional circuitry.   There are several other uses for them too.

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