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Raspberry Pi Tutorials

Christmas Tree Star Guide

Christmas Tree Star Guide

Assemble and get started coding your Christmas Tree this year with the ModMyPi Christmas Tree Star! Who doesn't want to SSH into their tree this Christmas? No-one that' s who. So dig out your tree, dust off your ornaments and get ready to complete your Festive decor this Christmas! You will need: A Christmas Tree Star which contains Star LED PCB Four screws Two posts A Raspberry Pi Zero W An SD card with Raspbian A micro USB power supply A keyboard and mouse A HDMI monitor A small Phillips head screwdriver A Christmas Tree A USB extension lead Something...

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Disable Wifi Power Management

Disable Wifi Power Management

If you are experiencing drop outs on your wifi interent connection, it could be that your dongle is turning itself off after an idle period. To stop your wifi dongle doing this, we need to disable its power management. Either SSH to your Pi, or login to its desktop and open up a terminal. First, make a backup of your existing interfaces file: sudo cp /etc/network/interfaces /etc/network/interfaces.backup Now edit the original interfaces file: sudo nano /etc/network/interfaces Assuming you haven’t edited this file before all you need to do is delete its entire contents, and copy the following into it: auto...

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DS18B20+ One Wire Digital Temperature Sensor and the Raspberry Pi

DS18B20+ One Wire Digital Temperature Sensor and the Raspberry Pi

NOTE: If you are using the latest software for your Pi (which you should be) then you will need to edit the boot config text file: Add the following line to /boot/config.txt dtoverlay=w1-gpio In previous tutorials we’ve outlined the integration of simple sensors and switches with the Raspberry Pi. These components have had a simple on/off or high/low output, which is sensed by the Raspberry Pi. Our PIR movement sensor tutorial for example, simply says “yes, I’ve detected movement”. So, what happens when we connect a more advanced sensor and want to read data more complex data? In this tutorial...

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Boot to command line - Raspbian Jessie

Boot to command line - Raspbian Jessie

Raspbian Jessie is here! Find out more information about the update here - https://www.raspberrypi.org/blog/raspbian-jessie-is-here With the launch of Raspbian Jessie there is one significate difference users are going to notice, and that’s the fact that your Pi will boot straight up into a GUI (instead of the CLI, like Raspbian Wheezy). That’s great, but what if you just simply prefer the Command Line Interface, or don’t want the added overhead of the Graphical User Interface? Well you can quite easily tell your Pi to boot to CLI. Here’s how: Start off by turning your Pi on and letting it boot...

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Boost USB Current

Boost USB Current

So you've got a Raspberry Pi, but the USB output current isn't driving what you need it too? One of the newer features on the Raspberry Pi B+ and Raspberry Pi 2 Model B is improved power management. By default, the 4 USB ports on the Raspberry Pi Model B+ and Raspberry Pi 2 only have 600mA available to them, that’s 600mA SHARED! That all very well if you only intend on plugging a wifi dongle, keyboard and mouse in. But what if you want to plug in something a little more power hungry? BOOST THE CURRENT! To do this,...

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