You only really need two data wires to transfer a ton of data. Standards like UART, USB2, I2C, SPI, PS/2, CAN, RS232, SWD (an interface to program MCUs), RS485, DMX, and many others, all are a ...
Raspberry Pi enthusiasts might be interested in a new sensor interface board which has been created by Infusion Systems specifically for Raspberry Pi systems and takes the form of the aptly named ...