Could use some help. My girlfriend is working on the Bulbdial clock kit and she's up to the green LED ring. This is her first time working on a project and she's done a great job soldering.
The Blue ring works perfectly. However, the green LEDs are a mess. When we go into the test mode we get the first LED to light and then maybe about 4 more along the way (in different segments).
Need some help determining the issue.
I've checked all of the LEDs and they appear to be functional (used a meter on continuity mode to test each one and they all seemed to work fine). I've checked all of the 0 ohm connections and they seem ok as well (using a continuity test) and I've checked all of the solder connections.
I'm a beginner with charlieplexing but I've read up on it a little bit so I'm wondering if there is a way to fire up the meter and test each bank/led for the correct impedance/voltage at various points. I'm hoping to use that to diagnose the issue. I don't want to de-solder the whole green board..
Any ideas on what we should do next?