Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

The Advanced E-field Touch Keyboard

Would you love to try something different in your boring life? Then, how about take a few hours and create an E-field touch keyboard?

We all know that keyboard is one of the most important input devices of the personal computer. It mainly consist a set of keys arranged in matrix from interfaced with microcontroller to transmit proper key-press signal to the PC. Amongst the various types of keyboards, the mechanical type of keyboards is most popular.

Basically, the E-field touch keyboard is an interesting project, where it can be used to replace present keyboard having mechanical type switches with a “Touch keyboard”. This keyboard can reduce the strain on finger muscles and chances of any related diseases. To be honest, the probability of a key not working is very less, as no any dust or dirt can enter into it to interrupt the key’s function.

The best thing about this E-field touch keyboard is it eliminated most of the mechanical keyboard switches.

e-field-touch-keyboard

If you refer to the above figure, you can see that two thin triangular electrodes are connected together to form a matrix of nine columns and four rows. The electrodes are responsible to sense the presence of finger near a particular key and then, it sends signal to the E-field sensor board.

[..Source link..]

Bookmark the permalink.

Comments are closed.