After releasing a revised version of the Raspberry Pi Model B (dubbed “B+") in July 2014 ... Raspberry Pi creator Eben Upton announced the Model A+, “which uses the BCM2835 application ...

The new Raspberry Pi B+ changes include more General-Purpose Input/Output pins (GPIO), it possesses a larger 40 pin GPIO header (with the same first 26 pinout ... two in the B model.

Update: The Raspberry Pi Model A+ is now available for $20 in the US and UK. The Model A was basically a cheaper version of the Raspberry Pi Model B with no Ethernet jack and with less RAM.

The Raspberry ... Pi add-on boards. Some stuff on the A+ hasn’t changed: there’s still only a single USB port, no Ethernet and 256MB of RAM. The Foundation recently rebooted its Model B ...