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First Drafts, Conversations, Stories in Progress

#MakeEveryWeek: A Series for Inventors
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Andrew McGill is chronicling the devices and apps he’s creating this summer and invites readers to join him. Are you an inventor and want to share a project? Please drop him a note: hello@theatlantic.com.

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A Silent, Slack-Powered Doorbell

No one likes to feel left out. And you know what’s just as bad? Getting locked out. But the very worst is getting locked out and awkwardly waiting for someone to let you back in, a diabolical combination of both fears that plays out at least once a week in the offices of The Atlantic.

We’re a modern, security-conscious workplace: Our office doors require employees to wave a fob over a reader before letting them into the main office. That means every time an Atlanticker heads to the elevators or uses the restrooms—both of which are outside the secured zone—they have to remember to take their keys along.

And I, for one, often forget. So I’m locked out. And then comes the awkwardness. Sometimes I pretend to be on my phone until someone leaves the office, at which point I’ll theatrically end my conversation and grab the door. But when that fails, there’s no getting around it: I’m reduced to knocking on the glass and sheepishly waiting for a coworker to fetch get me.

My second #MakeEveryWeek project seeks to solve this. The Atlantic essentially needed a doorbell. But not an actual doorbell; I fear that the incessant ringing of the Westminster Chimes would drive nearby coworkers to fits. My solution instead connects to Slack, our workplace chat client, and alerts a special channel that someone needs to be let into the office.

That this was easy to do is largely thanks to Amazon’s new Internet of Things Button, a customizable variant of their Dash buttons (which are hard-coded to order specific products) that connects to WiFi and sends instructions over the internet. My code (technical explanation here) includes a random quote about doors to Slack message—not only does the variety liven things up, but it also makes it easier to tell door requests apart.

Here’s what the doorbell looks like:

This project won’t protect me from forgetting my keys. But it will save me the embarrassment of admitting I forgot my keys.

I’ll probably use an Amazon IoS button for another project at some point—any suggestions?

If you live in the Washington, D.C., area, you’re probably familiar with Capital Bikeshare. And if you don’t, I bet the nearest American city might have something like it: A system of public bicycles available for rent, strategically placed throughout town for point-to-point trips. If you have a membership or a credit card, you can check out a bike at a kiosk, ride it to your destination and re-dock it at the nearest Bikeshare station. It’s one of my favorite things about the D.C. area.

But! There are few things more annoying than wrapping up a satisfying ride and pulling into bikeshare dock ... that is completely full.

It’s also a bummer to walk up to a station and discover that all the bikes have been taken.

Ilya Naymushin / Reuters

It’s never been easier to be a mad scientist. Back in the day, it took so much work: You had to rent a dungeon, fashion your own Tesla coils, and spend half your life reading cracked leather tomes written your equally deprived predecessors.

Not so anymore. Computers are small, fast and cheap, allowing a D.I.Y. types to slap a microprocessor on pretty much anything, and for less than $50. The internet can deliver a tutorial in an instant and any electronic component within a few days. And easy-to-program platforms have made controlling physical objects with code not only possible, but practical.

All this is great for a would-be inventor. Unless, like me, your drive to work on a project (which seemed so strong in the morning!) somehow gives way to an evening of Alias reruns night after night. Life gets in the way.

So here’s my resolution: Following the lead of WNYC journalist James Keefe, I’m resolving to buckle down and make a new thing every week this summer. It’ll ideally be a real thing—something you can see and could hold, not just ephemeral code powering an app. (Though I’m still keeping the ephemeral code door open if I hit a rough patch.) I’ll document what I’m doing through this thread, as well as more technical write-ups on my own blog. So far, I’ve built a smartwatch app that searches for nearby public bicycles and a silent doorbell for when my coworkers get locked out of the office.

Are you a time-crunched tinkerer? Please join me this summer by sharing your projects: hello@theatlantic.com. What have you built in the past? What are you working on now? And what should I build next?