Goofin’ Around with 7-Segment Displays & my Arduino

I’ve taken a few little steps forward towards my plans of building some cool stuff I’ve yet to announce. Yesterday I focused on testing out a tutorial I found on the Arduino website regarding driving multiple LEDs via chained shift registers. This setup is pretty cool as it only takes 3 pins off of the arduino (excluding power, which could be easily driven separately). I used the tutorial here to get the potentiometer going.

Arduino/Freeduino Play

Here’s a video I decided to toss up on YouTube just showing some of the results of some of the goofing around I’ve been doing with my Arduino board (it’s actually a Freeduino).

I had a lot of trouble getting the board to work at first, but once I ran it through an ultrasonic cleaner it seemed to smooth out a lot. Though, some times it still has a hard time programming, in which case I can just apply pressure to the FTDI chip and then it’ll program. I’ve tried re-soldering the pins on the FTDI, but that didn’t entirely resolve the issue enough. Not to worry though, it consistently works perfectly enough for me.