Launched in 2005, the open source Arduino board has inspired creations ranging from satellite equipment to “Enough Already,” an Arduino-based project that processes TV signals, muting the TV whenever an overexposed celebrity is being talked about. There are multiple models; the most popular, known as Uno (pictured), sells for about $30.
Arduino “enables everyday people with little or no technical background to build interactive products,” says Arduino co-founder Massimo Banzi. As opposed to Raspberry Pi, which is a small Linux computer, Arduino is an integrated platform with hardware, software, a development environment, and documentation. Arduino processors range from 8-bit AVR processors to 32-bit ARM processors.