LEAP#209 a funky little LED display


I found this interesting LED display at Sim Lim Tower, and grabbed one to test. The LED unit combines 7 x 7-segment display (no decimal points) and 7 indicator LEDs (Red-Green-Yellow).

It is marked as "72R02PHIL T9717". I have no idea what that means(!), and of course there's no sign of a datasheet on the net, so pinouts needed a bit of reverse-engineering. All in all, an interesting display unit for a combination of numerical and status display.

As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub.