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In this episode of Projects with Ryan Slaugh, we put a Raspberry Pi with an Alamode to work controlling a Pinewood Derby race track.  The aim of this design is to assist the race managers in keeping things running smoothly as well as giving accurate information about who won and the individual race times of each car.

This project is actually an update of an older build. The original system utilized an Arduino to monitor the sensors and control the LEDs. The user needed to connect via USB to the Arduino in order to get all the data – though it could be operated in stand-alone mode as well. The update brings the power of the Raspberry Pi to give the user more flexibility in applications to run the race (both off the shelf, freeware modifiable, and custom) as well as an easier connection via ethernet or even wireless if the Pi is so equipped. The Alamode handles the high-speed sampling and the Pi serves up the information and provides user control.

This project was extremely rewarding to do and very fun to use.  Luckily I was invited to participate in a Father-Daughter Pinewood Derby race where we could test everything out.

See the full series here.

Ryan Slaugh

Ryan Slaugh

Ryan Slaugh is a hardware and software engineer with over 15 years of experience designing and building different systems. While he has a few college degrees, his best training came from growing up on a farm and working with his father who was also an electrician. Ryan works regularly with woodworking, metal work, electronics, and software. Ryan also has a love of tools and collects as many as he can.


  • chrisjn

    Great project, and nice update, Ryan! I remember my dad building a very similar system but using a LOGO! logic module to handle the controls/switching instead of an Arduino/RaspberryPI. It’s amazing to see how much the hardware has changed in the ~14 years since.

  • Ron Tillis

    This is great, but are there any detailed instructions on how to configure the electronics?

  • Nick Van Laar

    I realize this is old, but where are the instructions? The link to see the full series just goes to the blog site…

  • Adhya Kumara

    Why using alamode? Why not using only the raspberry? Since you are using only the digital in and out. Pi has them right? Also how do you make your web interface?