2020-01-26 (Su) ProjectHoneybee

I went through the expected power draw for the badge, and I hope I overestimated the unknowns, like how much power could be used by the SAO ports. At worst, I expected to draw a few amps. At this rate, the badge would have to be running a handful of external boards, transmitting on Wifi, and all the LEDs would have to be running at full power. Wireless is not on my scope yet, but not out of the question. I decided to use LM2596S regulators since they appear as modules on eBay which suggests they are a well-reputed component, and we could probably get clones if necessary. The footprint is similar on higher-powered devices in the same line, so I can swap it if the boards are underpowered.

I searched for the supporting components on Mouser, Digikey, and Arrow. These components were passives like a diode, capacitor, and an inductor. Each badge will have two regulators, one for 3.3V and one for 5.0V, and I can double up on the supporting components for convenience’s sake. I added links to my BOM, but that was for whoever buys parts during the final build.
Picture of BOM

The rest of the posts for this project have been arranged by date.
First time here?

Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6

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