The Raspberry Pi is deceptively simple. Plug it in boot it up and use it as a personal
computer or attach a million gizmos and modules and invent something new and amazing. Either
way what it can actually do is not simple and you should know exactly what the Raspberry Pi
hardware is all about. Raspberry Pi Hardware Reference from Mastering the Raspberry Pi is the
hardware guide you need on your desk or workbench. Every detail is covered: from power to
memory from the CPU to working with USB. You'll find all the details about working with both
wired and wireless Ethernet SD cards and the UART interface. The GPIO chapter is invaluable
covering power budgeting access and even small but important details like the correct usage
of sudo when working with GPIO pins. You'll also find details about the 1-Wire driver the I2C
bus and the SPI bus. If you need to know anything about your Raspberry Pi's hardware you will
find it here in Raspberry Pi Hardware Reference.
