The Raspberry Pi Model A+ is the perfect board for the minimalist Pi fan. This low-cost Pi uses the same processor as the model B+, but does away with the Ethernet jack and three of the USB Ports. This makes it lower power, less expensive and much lighter & smaller! It’s still compatible with all Pi operating systems and software, and has the exact same 40 pin GPIO connector and camera/display sockets, so any HATs or Pi Plates or other things that plug into the model B+ will work just the same.
It also has the same HDMI, sound/composite connector and microUSB connector for power.
Unlike the Raspberry Model B+, there’s only one USB port and no ethernet jack but it’s also significantly smaller at 65mm x 56mm if you don’t include overhang from the connectors. Also, there is only 256 MB of RAM onboard instead of 512, so if you have a RAM-intensive application you may need to stick with the B+
Don’t forget, you’ll need a USB power supply with microUSB cable, and a microSD card with a Raspberry Pi OS on it (we suggest a Raspbian 4G card or NooBS 8G card)
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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I fired up a Raspberry Pi A+ using a Pidora SD card from a B+. It came right up with no problems. I was quite impressed by the lower power. Almost Half the power of the B+ under the same conditions! Almost 1/3 the power of the B! My unofficial measurements are 350mA for Rev B. 240mA for B+ and 120mA for A+. For the remote application I am using this for it will be such a battery saver! The A+ Rocks!!!