A user interface is almost always needed when controlling and testing a piece of hardware. Ideally the interface would show data on a display and provide a keyboard for entering commands. Surely it should be possible to use a smartphone for the job? The FTDI FT311D is a flexible bridge that can interface your circuit to an Android smartphone or tablet. It offers options for seven digital outputs, four PWM outputs, asynchronous serial and I2C and SPI interfaces. To make things simple we have designed a small board to carry the chip: introducing the ‘Elektor Android breakout board’.
Please note: this PDF Article contains the English, German, French and Dutch languages of the article (24 pages in total).