Many microcontroller designs typically mix multiple interfacing methods. A microcontroller (µC) system can be viewed as a system that reads from inputs, performs processing and writes to outputs.

[hw640] has put together a well written and detail packed explanation of how to interface with a digital rotary switch. These digital opto encoders have just two outputs with four possible logic ...

USB interfaces are everywhere today, with low cost flash memory drives and all kinds of USB peripherals readily available. But these are very much focused on the PC market. Attempt to make use of ...

The capabilities of this small and nice chip on measuring acceleration and orientation in space are shown in this project where the 3-axis ADXL330 accelerometer is interfaced with an AVR ...

The M.2 slot is usually used for solid-state storage devices. However, [bitluni] had another fun idea for how to use the interface. He built an M.2 compatible LED matrix that adds a little light to ...