A few people have been asking for a workable Display for the Spark Core. I’m hoping the following will help a few people get started.
I use an OLED because it simplifies the wiring and it runs great off 3.3V and doesn’t require any additional wiring for contrast. It’s also slightly less power hungry.
You can pick one up from ebay, spark fun etc. i.e. https://www.sparkfun.com/products/11987
You’ll need to do some simple soldering to mount it for the breadboard. Don’t skip this stage and hope you just hang it off some pins.
I’d mount the pins in the breadboard first starting at 1-16 and then solder the display after you’ve got it set up. This makes it easier for wiring later.
I’ve put something together in Fritzing here
http://fritzing.org/projects/oled-with-spark-core which should help.
You should end up with something like
And in the end it should look a little like this
I’ve pasted the code here