B&K Precision has expanded its line of DDS (direct digital synthesis) sweep function generators with the addition of three models: the 12-MHz 4014B, the 20-MHz 4040B, and the 20-MHz 4045B with 12-bit, ...

This is a common implementation for keypads, and if you have been researching this topic for some time, you are likely aware that the most common approach involves using either the rows or columns as ...

I developed a calculator using 4x4 matrix keypad as input and used the oled screen as output and for additional function I added a led which will light up when the system shows the result. - ...

A joint effort by Barantec and Quintron has brought a new card reader/key pad unit, the Tri-Guard, that combines and transitions three technologies, keypad, magstripe and proximity, to the market. The ...

The idea behind Neokeys’ smart keypad is pretty simple. Put tiny LCD screens above a phone’s middle 12 keys and sandwich them in between two outer columns that list options and menus. So each time you ...