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RaspberryPi/prepare: Difference between revisions
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Note that the serial connector cable also allows you to power the Raspberry Pi from your USB port. | Note that the serial connector cable also allows you to power the Raspberry Pi from your USB port. | ||
* However, you should only over use one source of power: Don't connect both serial power and the micro-usb power | * However, you should only over use one source of power: Don't connect both serial power and the micro-usb power | ||
* See [[Raspberry Pi/UART|here]] for how the serial cable needs to be connected when you power the Raspberry Pi from micro-usb power | * See [[Raspberry Pi/UART|here]] for how the serial cable needs to be connected when you power the Raspberry Pi from micro-usb power (and not from the serial/UART) | ||
* When you are not using micro-usb power (from a mains socket), also connect the [[Raspberry Pi/UART|red wire shown here]], and this will power the Raspberry Pi. | * When you are '''not''' using micro-usb power (e.g. from a mains socket), then also connect the [[Raspberry Pi/UART|red wire shown here]], and this will power the Raspberry Pi via the serial/UART. | ||
** Note that via the serial/UART cable, you may only be getting just enough power to the Raspberry Pi. This is because the USB standard only mandates 500mA. Many devices can supply more than 500mA via their USB port, but this may or may not be the case. Overall 500mA is not enough, particularly if you connect further peripherals to the Raspberry Pi (e.g. USB devices in the Raspberry Pi USB ports, that draw power from the Raspberry Pi). | |||
** Even if you use the serial/UART connection to power the Raspberry Pi, you can still connect the ethernet cable (see next section). | ** Even if you use the serial/UART connection to power the Raspberry Pi, you can still connect the ethernet cable (see next section). | ||
By "micro-usb power" we mean power supplied to the Raspberry Pi's micro USB socket, e.g. from a micro-usb power supply (mains powered) or a micro-usb cable. | By "micro-usb power" we mean power supplied to the Raspberry Pi's micro USB socket, e.g. from a micro-usb power supply (mains powered) or a micro-usb cable. | ||
