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Or Commands for the Terminal  Note: there are two “modes” you can work with in Linux. One is a user mode with basic access privileges, and the other is a mode with administrator access privileges (AKA super user, or root). Certain tasks cannot be performed with basic privileges and you will need to enter into root mode to perform them. You will frequently see the prefix sudo before commands, which means that you are telling the computer to operate the command with super user pri ...
In this Post we go beyond the setup of the I2C, SPI and OneWire interfaces on the PI2 and look at how to integrate  some common I2C analogue IO devices, specifically the following   DAC8571 Quad 16bit DAC:- http://www.ti.com/lit/ds/symlink/dac8574.pdf costing about $8 each   DAC8571 Single 16bit DAC:- http://www.ti.com/lit/ds/symlink/dac8571.pdf costing about $3 each   ADS1115 Quad 16bit ADC:- http://www.ti.com/lit/ds/symlink/ads1115.pdf costing about $3 each   there ...
In this post of the Raspberry PI series we look at what is required to setup a Raspberry PI 2 after the initial Raspbian setup. It assumes you have completed "sudo atp-get update" and "sudo apt-get upgrade" or that you install is up to date and you can SSH into the PI from a console using TeraTerm or Putty (Or your own favourite SSH) app.   The process shows how to install and test all the various libraries we will need for the up coming tutorials on adding devices to the PI2 GPIO connect ...
Many of you are into Raspberry PI's in one way or another, some are happy to just use it as a programming platform, others want to extend into the control side of things.   This Post is the start of a series to explore how you can easily and cheaply extend the capabilities of the Raspberry PI and add your own IO to it for many applications In this video I show how to attach and use a 16 port SPI connected IO expander (The same chip as used on the PIFace Digital MCP23S17 by Microchip) and ...
Now, many of you probably know that the Pi 2 was supposedly not going to be released until 2017. However, obviously, it came early.   When the Pi 2 was released, I got super geeked about it - I mean, it came early and it has amazing specs! Then, when I saw that Element14 was going to be doing a Road Test/giveaway for the Pi 2 - well, I just had to enter!   So, I set to work drafting up my qualifications to enter the contest and asked a few questions on the contest page. However, befo ...
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