The Raspberry Pi is a great machine to learn the ... Other languages and libraries are much slower, but the RPi.GPIO Python library stukk sees a 2.5x increase.

A new Pi is $35, but we found an old Raspberry Pi 2 in my desk drawer ... There are multiple ways to do this with the Raspberry Pi’s GPIO Python library, but we settled on the “add_event ...

All the original ports found on the Raspberry Pi Model B+ are found on the Raspi 2; HDMI, audio, analog video, Ethernet, USB, CSI, the as-for-now unused DSI, and GPIO ports haven’t changed.

In addition to Python Games (a series ... 1 Model B+ also has four USB ports, 40 GPIO pins and a microSD reader, just like the Pi 2. There's also the $5 Raspberry Pi Zero, the ultra-low-cost ...

The new "Raspberry Pi 2" has roughly the same form factor as the $35 Model B+ from July 2014, which changed the appearance by doubling the number of USB ports to four, adding more GPIO pins ...