I needed a way to trigger a flash from an Electron app, but there wasn’t anything out there that suited my needs. At first I thought there would be a flash with a simple bluetooth interface, and there is. Unfortunately none of these flashes have a public API, and some even go to the trouble of encrypting their bluetooth messages. What the heck?!
I don’t have much experience with Arduino development, or electronics in general, but the market forced me into it! Fortunately this project is about as simple as it gets. If this is your first time tinkering with Arduino, it’s a good place to start.