Monthly Archives: June 2017

Car Heads Up Display Using LED Strip

This is the next step in my mission to make my car look 5 years newer and feel like flying a jet.

PROJECT IS 90% DONE BUT STILL WORK IN PROGRESS, DOCUMENTATION IS ALSO WORK IN PROGRESS

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I wanted a HUD, Heads Up Display to my car. I do not like any of the other ones on the market today, they all try to do “too much”. I wanted something more simple and elegant.

My design is a simple RGB capable individually controllable LED strip that reflect off my windshield. I used the “DotStar” from Adafruit Industries, which uses APA102 LEDs. The brain is a Teensy 3.2, which is connected to my car’s CAN bus via a OBD-II connector.

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It is programmed to have three different modes: voltmeter, tachometer, and speedometer. The mode switching is “context aware”: When the car is moving, the mode changes to speedometer. If I rev the engine Continue reading