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Hardware

Sun 28 February 2016

Pinouts

Depending on the version of the rpi you have, there are different pinouts for the different versions. A great resource is Pinout to figur out what pin is what.

Lights

The main indicators are the lights on the front corner of the board. These are:

OK (green): The board is active (blinks off when accessing the SD card)
PWR (red): The board is successfully powered from USB
FDX (green): Network is full-duplex
LNK (green): The network cable is connected (blinks off when transferring data to/from the network)
10M (yellow): Lit when the board is using a 100Mbps link, not lit when using a 10Mbps

Power

Power

Product PSU Maximum USB peripheral current draw Typical bare-board active current consumption
Raspberry Pi Model A 700mA 500mA 200mA
Raspberry Pi Model B 1.2A 500mA 500mA
Raspberry Pi Model A+ 700mA 500mA 180mA
Raspberry Pi Model B+ 1.8A 600mA/1.2A (switchable) 330mA
Raspberry Pi 2 Model B 1.8A 600mA/1.2A (switchable) ?

USB Camera

To use the Logitech C270 camera you need to add your user (pi in this case) to the video group:

sudo usermod -a -G video pi

For other users, just change pi to the correct username. Then make sure the driver is loaded:

sudo modprobe uvcvideo

You can double check it works by grabbing an image:

sudo apt-get install fswebcam

fswebcam image.jpg

If an image appeared, then all is good.

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