For a microcontroller, [Toby] used a CH552G, which is cheap and compatible with the Arduino IDE. Although, with 10 GPIO, a matrix layout could have supported a full-sized number pad, the diodes ...

We’re not sure about the rest of you, but to us, a keyboard without a number pad all the way over to the ... leading to some software hacks to keep the Arduino happy. There was also a little ...

I have been pondering how to quickly and accurately manually set up a 16bit binary number in an Arduino (or other microcontroller ... this is how numbers are set on the FY6900 Have a key pad and a ...

The TK-TCT005BK is a combination USB touchpad and number pad. Press the familiar “num” button on the top edge and it works just like a numeric keypad. Obviously aimed at laptop owners who lack ...