I built this machine back when I was in 100lvl. It was supposed to be 2d plotter but... I cut so many corners that it became so inaccurate. Sure it could draw straight lines in a single axis well but try to combine them and you'd be very disappointed.
I'm gonna fix it, soon.
Ardulearn is gonna come with tons of new features.
It is going to be integrated with Ardulearn 2.0 by God's grace
This is an old video tho. A lot has changed since.
I woke up this morning and the concept on my mind was PWM using the ne555 timer.
I wanted to try something out, so I whipped together a circuit courtesy of @howtomechatronics
Firstly I tried blinking and LED and then tried controlling a DC motors speed using a potentiometer.
@Adeoye79886320 With all these components, it no longer seems as a wearable. It's more of a pocket carry, and judging from your dimensions it seems square.