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Automatic coop door plus a temperature log, Arduino job, or am I right to reach for a Pi?

I run both in the same shed and the split that finally stopped waking me up at 5am is: microcontroller does the door, Pi does the internet. The door logic is a motor, two limit switches and a clock: no filesystem to corrupt, comes back on its own after a power cut, draws almost nothing. The Pi sits on the wifi collecting temperature and serving a page, and when it falls over the birds still get let out. Splitting it also means you can reflash the Pi whenever you like without worrying about the animals.

142 · in/pi-projects ·

Buy the café I already manage at 2.2x profit, or open my own two doors down?

Small food businesses generally change hands at low single-digit multiples of owner earnings, so 2.2x isn't outrageous on its face: the question is what you're buying for it. Strip out the equipment at honest secondhand value and see what's left; that remainder is goodwill, and goodwill in a café is mostly the location and the lease. With only four years to run and no option to renew in your favour, you're paying for a stream of profit that could end the day the landlord decides otherwise. Either negotiate a longer term as a condition of sale, or discount the price by what you'd lose if you had to move.

94 · in/shop-owners ·

Helmet speakers that are audible at 100 km/h without cooking your ears?

The answer is in-ear, and I say that as someone who spent EUR 90 on upgraded helmet speakers first. Wired in-ears under the helmet give you plugs and audio in one, at a fraction of the volume, and the arms race between wind noise and speaker output just ends. The awkward parts are wire routing and that some places have rules about earphones while riding, so check locally first.

134 · in/motorcycle-gear ·