Feel-The-Code (F-T-C) is a vibra-tactile Morse Code text reader. It has a software component and a hardware component. Its purpose is to make it possible to read any text file silently and without looking at the computer. With F-T-C a person who is blind can read text easily and unobtrusively.
Part 1 of the project described the free F-T-C software (Pic 2) and how to use it. I would suggest you read that IBL before you start to building the the vibra-tactile display.Part-1: SoftwarePart-3-Amp-Hardware
The hardware vibra-tactile component (Pic 3) described here is based on a LED controller harvested from a USB keyboard. It can be built for as little as $25 even if you have to buy all the parts. It is compact and portable so it can be carried from PC to PC.
Some soldering to small electronic parts is required so review one of the IBLs on soldering if you are new to this. https://www.instructables.com/id/How-to-solder/