Sketch for "arduino nano" microcontroller. It allows to "read" by humans skin some text through a vibromotor using Morse code.
The goal of this project is to help people in some situations, when they need to reproduce a hard-to-remeber information (e.g. on exams). You can control it through 2 buttons, and it will deliver to you information throw a vibromotor (I got one from old mobile phone). I will add the PCB scheme latter. My prototype has 2 buttons, 1 DC-DC converter, 1 li-ion battery from mobile phone, sim800l, microSD cardreader and vibromotor connected through a transistor.