Ok, here’s a puzzle for you. A project with two boxes, but what are they for?
The first box is truly a “black box” – no connections at all, no display, no button, nothing:
Not much to see on the inside either:
The second box has a 5-way button and an LCD display:
There’s a USB connector on the bottom right, but it’s only used for charging and debugging.
There’s a bit more electronics inside this one:
Still a few wires missing, because I haven’t hooked everything up yet.
So there you have it. Both boxes are self-contained, but the project I’ll be using them for needs both. I’ll reveal the project once I’ve got the basic software going – it’s always the code that takes the most time to develop!