When you need a microcontroller to bring your latest invention to life the first impulse is usually to grab an Arduino board, probably an Arduino Uno. It makes sense, the Arduino Uno is easy to work with, and th
Once the 3D printed segments are complete, you’ll need to spray the back and sides of the segments black to match the background so that they’re less visible when turned away. If you leave them green then you’re still going to land up with a thin visible line when the segment is ...
In this paper, we describe a very inexpensive prototype for conductivity measurements based on Arduino UNO R3 coupled to an open-source circuit board with only passive components. We designed the printed circuit board (PCB) and the suitable handmade cell using stainless-steel electrodes and wrote ...