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Digital Bumper Sticker Tells Everyone What You’re Listening To


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Bumper stickers are usually political, crude, or otherwise inflammatory. Rather a more fun example is this digital creation from [Guy Dupont], who made a bumper sticker that broadcasts what he’s listening to on the stereo.

[Guy] found a nice wide 11-inch bar LCD that was the right aspect ratio to suit the “bumper sticker” aesthetic. It had an HDMI interface, so he decided to drive it with a Raspbery Pi Zero 2W. Power for the system was derived from 12-volt lines going to his vehicle’s rear view camera. For an enclosure, he simply stuck the Pi and a buck converter on the back of the display and heat shrinked the whole thing. He also threw some magnets in there to stick it to the car.

How does the screen know what song to display? Well, [Guy] already has his Spotify listens scrobbling to Last.fm. Thus, he just made a script that scrapes his Last.fm page, which runs on a Particle Boron microcontroller, which has a cellular connection of its own. The Boron gets the song data, and spits it over to the Pi via Bluetooth. Then the Pi generates an image for the display.

Oh, and there’s also a neat Easter Egg. In honor of brat summer, the background changes to #8ACE00 green if the system detects you’re listening to Charli XCX. Neat.

It’s a neat build with a lot of moving parts. We’re surprised we haven’t seen anything like this before though, it’s really rather fun. Also, how’s about that taste of the old Internet—when was the last time you heard somebody mention scrobbling? Gosh, we’re getting old.

We’ve featured some of [Guy’s] works before, too, like the amusing Mailblocks project. Video after the break.

youtube.com/embed/mWRPRW6pHIY?…


hackaday.com/2024/09/12/digita…