Review on Raspberry Pi 3 Computer Board by William Nunes

The Raspberry Pi 3A+ is small (less than 3 inches on each side), has 2.4 and 5 GHz Wi-Fi, four processors (cores) and enough memory for most applications. It features a 40-pin General Purpose Input/Output (GPIO) header that provides +5V, +3.3V, ground, serial, I2C, SPI, and multiple pins that can be configured as input or output . . It also features a full-size HDMI (High Definition Media Interface) display port. A feature that some other processors (like the ATMega) lack is A/D and D/A conversion. For the vast majority of applications, none of these are required.