![rapid sketch program ebay rapid sketch program ebay](https://neilpatel.com/wp-content/uploads/2021/04/GROWTH-HACKING.png)
This sort of demonstration is exactly the sort of thing that captures the imagination, and opens up the eyes to what you can achieve with a little programming and a little solder flux. Well, so far it’s gone down a treat at talks Francois has been giving about the Pi and programming.
![rapid sketch program ebay rapid sketch program ebay](https://www.motovationusa.com/images/product/xa7g710.jpeg)
“What practical use is all this?” I hear you mutter at the screen. Ask him about it if you see him and you need a reminder of how lucky we are to have the ability to look this stuff up online.) (Eben has a funny story from when he was about 11 which involves Bresenham’s algorithm, a BBC Micro, the days before the internet, inter-library loans and the month’s wait he had to endure before he was able to get his hands on the very simple information he needed to draw a line on the screen. And with a bit of help from Bresenham’s algorithm, you can draw circles too. Horizontal, vertical and diagonal lines? No problem. The stepper motors you can see here have the same diameter as the shaft of the familiar twirly knob they replace.Įquipped with an Etch-a-Sketch, some stepper motors, a battery pack, a Pi, an 8-channel Darlington pair and some leds, wires and headers, Francois has made a device that uses Python to draw all those things on an Etch-a-Sketch that, as kids, had us throwing the things at the floor in frustration at the uselessness of our fat thumbs.