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Jim Lindstrom
@jimlindstrom.bsky.social
Chicago (prev NYC, orig Iowa). Cycling and photography enthusiast. Dad to 2 boys, 2 cats and a dog. History junkie. In an alternate life: a 19th century composer.
175 followers129 following224 posts
JLjimlindstrom.bsky.social

A Sunday project with the kids: controlling a 7-segment display on a Raspberry Pi using Scratch, to make a simple clock. They had moderate fun, but I had more! (This actually started on Saturday, when I secretly did all the pre-work they don't have the attention span for.) #raspberrypi

A breadboard is propped up on its side, showing a 4-digit, 7-segment display that reads "13:12" (military time for an hour and 12 minutes past noon). The board has 4 blue resistors connecting things, and about a dozen jumper wires leading back to the raspberry pi, which is behind the breadboard.
Wider shot of the breadboard showing that it's in a little cabinet under my TV, a mouse and keyboard above it. On the TV is a linux desktop running Scratch, and there's a fairly lengthy sequence of if-then's that sets the GPIO pins according to what digit the user is trying to display in what position.
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JLjimlindstrom.bsky.social

Update: they being boys under 50 (?), obviously they have now set about making the display read “POOP”.

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JL
Jim Lindstrom
@jimlindstrom.bsky.social
Chicago (prev NYC, orig Iowa). Cycling and photography enthusiast. Dad to 2 boys, 2 cats and a dog. History junkie. In an alternate life: a 19th century composer.
175 followers129 following224 posts
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