Tune Into The Bonnaroo That No One Gets To Go To

Just like everything else in 2020, the four-day, multi-stage festival of music and art known as Bonnaroo has been cancelled. This would have been [Guy Dupont]’s fifth year making the journey to Tennessee with his friend. Since they couldn’t go, [Guy] decided to build an interactive Bonnaroo mix tape into an 80s clock radio as a birthday present.

[Guy] was able to re-purpose all the original buttons and dials to navigate through the schedule of acts that would have performed across four days and five stages. The conveniently four-way function slider is used to choose the day, and the radio tuning dial selects the stage, complete with delightful static between the positions. The rest of the buttons move back and forth through the scheduled set times, and one will scroll the track and artist name across the 16-segment displays. The snooze button has the honor of being the play/pause button.

All the inputs are controlled with a Feather M4 express, and the music comes through a DFPlayer Mini. We love that [Guy] was able to repurpose the analog tuning dial by coupling it to a slide potentiometer that fit perfectly in a slot on the underside of the plastic. Stay tuned for a great video that starts with an explanation and demo and then goes into the build.

Though the utility of the clock radio may have been supplanted by cell phone alarms and doomscrolling, that just means that there are theoretically more of them to gut and turn into other things, like this Fallout-inspired luggable Pip-Boy.

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A Sweet Little Insulin Reminder Light

So much of what we do relies on a certain societal structure that has been absent for a few months now. When the days run together, it’s hard to remember to do the things that must happen daily. You think you did something, and maybe you’re right, but it’s quite possible you’re thinking of yesterday.

[Flameeyes] has diabetes and must use an insulin pen every morning without fail, no matter what’s happening outside his door. This was pretty much a non-issue in the before-time, but quickly became a serious problem as the routine-free weeks wore on. With no room for false positives, he needed a solution that doesn’t trigger until the deed is done.

Now when [Flameeyes] puts the pen away, he also triggers a Flic smart button mounted nearby. The Flic shares its status with a Feather M4 Express through a web app, and the Feather in turn changes the RGB LED inside of Pikachu’s base from red to yellow for the day. Pikachu sits in plain sight by the kettle, so there’s no guessing whether [Flameeyes] took his insulin.

Insulin is a critical commodity with a lot of DIY interest, which is probably starting to spike about now. Our own [Dan Maloney] wrote a great piece on the subject that brings up an insulin hack from around 80 years ago.