Radar Speed Sign Electronics Kit


All the tricky electronic components you need to build your own radar speed sign!

3 in stock (can be backordered)

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The electronics for building your very own Radar Speed Sign!

Example of what you could make!

This kit includes:

  • HB100X Doppler Radar Sensor
  • Pico Radar Speed Sign Control Board
  • Short 3-pin servo cable
  • 2x Bigass 7-Segment Displays (252 LEDs!)

If you would like to build the project into something like this, you will need to provide the following materials.

  • Sign construction materials.
    • Coroplast sheeting
    • Aluminum pop rivets
    • Plexiglass
    • Flat black spray paint
    • Decals (patterns are available here)
  • 12V 3A power supply. 3S LiPo batteries can be used for this, but we highly recommend adding a fuse if you decide to use the spicy fire bag to power your sign.
  • Wiring. Crimps are optional but make things nicer (headers on boards a 0.1″ DuPont style).
  • Protoboard for distributing 12V power from your supply to the controller board and each 7-segment display digit.

NOTE: Radar sensor range is intended for pedestrians, and won’t do a very good job of picking up far away targets like cars. We’ve seen some cool experiments around extending the range of the doppler radar sensor by building some custom horn antennas, so if you go down that path we’d love to hear from you!



Additional information

Weight 16 oz
Dimensions 11 × 8 × 2 in


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