Die LED-Matrix besteht aus ingesamt 128 LEDs, von denen 64 rot und 64 grün sind. Sie können abwechselnd oder zusammen leuchten, sodass die Farben rot, grün und gelb/orange dargestellt werden können.

The voltages and signal timings described below are dependent on the battery voltage and are probably also impacted by temperature. While the calculator runs on a 9 V battery, internally the logic ...

Putting a custom designed electronic lock on your space seems like a geek right of passage. For our latest workspace, we decided to skip the boring numbered keypad and build a custom RGB backlit ...

A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open switches connect a row to a column when ...

There was a time when people were happy to interact with their computer with a standard keyboard and mouse. But in recent years, we’ve noticed more programmable, custom-designed keyboards with more ...

Here is a 3D light show that will astound you with its combinations. Inexpensive and easy to make thanks to an Arduino controller, the design enables you to play with the existing effects and, most ...