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#circuits

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I build #circuits to drive projects, like a kiln controller or a robot. My prototypes are built with bought modules on #veroboard. A module takes Vin and GND, and provides IO as SPI, I²C, 0-5v, etc, so I can ignore the specifics of each chip and work on the fun integration stuff.

The problem arrives when I want to make a #PCB without modules. I then I have to open a million datasheets and spend a week finding components and routing stuff.

🧵 1/2

My husband requested a circuit board design for this t-shirt, in green, of course. I didn’t have quite enough of the main fabric left to cut out the front and back in whole pieces. There was a big chunk missing at the shoulder. So I asked my husband if circuits ever had a reason for two of them to be joined together, so I could fill in the space, and he said sure. When circuit boards are fabricated, the machines make a whole panel of them at a time and they’re connected together with lines of perforation, called mouse bites, so they can later be snapped apart into separate pieces. So that’s how I filled in the gaps at the corners with scrap fabric to make them look intentional.

Mostly 100% cotton jersey, cotton and polyester thread, gold acrylic paint

Please recommend to me the simplest primer for understanding the meaning of circuit diagrams or schematics (I don’t even know if there is a difference.

I am learning them for a very weird reason.

Stafford Beer uses circuit diagram like notation in his management cybernetics diagrams, obviously as a kind of metaphor. I am trying to get a grounding in the reality he bases the metaphor in to better follow his logic.

The last time I worked with circuits was in shop class. I am now of the age to need reading glasses. So I probably need a light refresher on basic concepts, too.