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= Raspberry Pi without a monitor ("headless") = | = Raspberry Pi without a monitor ("headless") = | ||
If you're coming to a workshop | If you're coming to a workshop, please bring your laptop! Here's why. | ||
The Raspberry Pi is a little, but fully-fledged computer, that can be used with a keyboard/mouse and a screen (computer monitor, or TV, DVI, VGA, HDMI, or composite). However, for many workshops, it's not possible to bring sufficient screens and keyboards/mice - you'll appreciate that the size and weight of monitors/keyboard are many times that of the Raspberry Pi! | The Raspberry Pi is a little, but fully-fledged computer, that can be used with a keyboard/mouse and a screen (computer monitor, or TV, DVI, VGA, HDMI, or composite). However, for many workshops, it's not possible to bring sufficient screens and keyboards/mice - you'll appreciate that the size and weight of monitors/keyboard are many times that of the Raspberry Pi! | ||
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** 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). | ** 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. These difference scenarios are showns here: [[RaspberryPi/UART]]. | ||
== Ethernet (ssh / VNC) == | == Ethernet (ssh / VNC) == | ||
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* On Mac OS X, install zterm, and ChickenOfTheVNC. (Note that you can use e.g. Screen within the OS X Terminal app also, but I've found zterm better. | * On Mac OS X, install zterm, and ChickenOfTheVNC. (Note that you can use e.g. Screen within the OS X Terminal app also, but I've found zterm better. | ||
* If you have a linux laptop, install (to follow) | * If you have a linux laptop, install (to follow) | ||
= bushcraft = | |||
We have developed some tools to give support when using Raspberry Pi / linux in more challenging environments, see https://github.com/bjohas/bushcraft. | |||
