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Raspberry Model A+

SKU: RPI_APLUS+

Raspberry Model A+


The low-cost variant of the Raspberry Pi

Availability: Out of stock

$27.25

SKU:RPI_APLUS+

Assembly Required!
Product Description

    Details

    Raspberry Model A+

    ARM11 Multimedia Applications CPU, 40pin GPIO Header, Better Audio, 256MB RAM, 1 x HDMI & USB Port

     

    The Model A+ is the low-cost variant of the Raspberry Pi. It replaced the original Model A in November 2014. Compared to the Model A it has:

    • More GPIO. The GPIO header has grown to 40 pins, while retaining the same pinout for the first 26 pins as the Model A and B.
    • Micro SD. The old friction-fit SD card socket has been replaced with a much nicer push-push micro SD version.
    • Lower power consumption. By replacing linear regulators with switching ones we’ve reduced power consumption by between 0.5W and 1W.
    • Better audio. The audio circuit incorporates a dedicated low-noise power supply.
    • Smaller, neater form factor. We’ve aligned the USB connector with the board edge, moved composite video onto the 3.5mm jack, and added four squarely-placed mounting holes. Model A+ is approximately 2cm shorter than the Model A.

    We recommend the Model A+ for for embedded projects and projects which require very low power, and which do not require Ethernet or multiple USB ports.

     

    POWERING YOUR PI'S

    The Raspberry Pi is powered by a 5V micro USB supply. Exactly how much current (mA) the Raspberry Pi requires is dependent on what you connect to it. A good quality 1.2A (1200mA) power supply will provide you with ample power to run your Raspberry Pi.

    Typically, the model B uses between 700-1000mA depending on what peripherals are connected; the model A can use as little as 500mA with no peripherals attached. The maximum power the Raspberry Pi can use is 1 Amp. If you need to connect a USB device that will take the power requirements above 1 Amp, then you must connect it to an externally-powered USB hub.

    The power requirements of the Raspberry Pi increase as you make use of the various interfaces on the Raspberry Pi. The GPIO pins can draw 50mA safely, distributed across all the pins; an individual GPIO pin can only safely draw 16mA. The HDMI port uses 50mA, the camera module requires 250mA, and keyboards and mice can take as little as 100mA or over 1000mA! Check the power rating of the devices you plan to connect to the Pi and purchase a power supply accordingly.

     

    BACKPOWERING

    Backpowering occurs when USB hubs do not provide a diode to stop the hub from powering against the host computer. Other hubs will provide as much power as you want out each port. Please also be aware that some hubs will backfeed the Raspberry Pi. This means that the hubs will power the Raspberry Pi through its USB cable input cable, without the need for a separate micro-USB power cable, and bypass the voltage protection. If you are using a hub that backfeeds to the Raspberry Pi and the hub experiences a power surge, your Raspberry Pi could potentially be damaged.

Additional Information

    Additional Information

    SKU RPI_APLUS+
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