Assembly required! Build a 56 LED text message display. Easy to assemble kit makes for a great learning experience. All parts are easy-to-solder through-hole, with no tiny surface mount parts.
The Blinky Grid usually takes between 45 minutes and 2 hours to assemble.
To construct a Blinky Grid you’ll need the kit (what you are looking at here), a soldering iron and solder, a diagonal cutters, two AA batteries, and optionally, a hot glue gun and wire strippers.
Programming instructions: https://www.wayneandlayne.com/blinky_programmer/