Monthly Archives: April 2016

I/O Addresses and I/O memory

Please note that this post follows on from : IRQ’s and Interrupts I/O Addresses and I/O memory relate to bi-directional Communications between (CPU/Computer to devices ) as opposed to IRQ’s/Interrupt’s which are one way (device to CPU/Computer) communications. Communication via … Continue reading

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Device IRQ’s (interrupt requests) a Definition.

Definition of : IRQ (interrupt request) An IRQ (interrupt request) value is an assigned location in memory where the computer can expect a particular device to interrupt it when the device sends the computer signals about its operation. Note that … Continue reading

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Introduction to the new “Study Notes section”

Introduction of the Study Notes section I have been feeling the need on my blog to create a general study notes section, so today this is what I am doing. I find that there are general IT related topics that … Continue reading

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ARM Development boards and their low-level coding Data-sheets

Low level Arm Processor Development Starting to get to grips with coding on any computer system is not a simple task. At the very start you need to select an appropriate coding language and then choose the best possible learning … Continue reading

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Raspberry Pi light sensor controlled LED lamp Project

Project Plans and notes I am currently working on a background PI project to replace the on/off switch on a desktop LED lamp that I needed to repair. The Lamp is made by electronics company called “AM Tech” and cost … Continue reading

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Raspberry Pi GPIO programming

GPIO – Starting from the pins up During the last week of study I have spent a lot of time looking at many online references that relate to Coding for GPIO input and output on the Raspberry PI along with … Continue reading

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Raspberry Pi development projects and GPIO coding

Ever Since the launch in early 2015 of the Raspberry Pi 2 and followed one year later in early 2016 with the Pi 3, the Raspberry PI development board is now with out question a fully usable desktop computer, provided … Continue reading

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Raspberry Pi 7inch HDMI LCD screen and case, Setup and installation

This week I received and installed one of the final elements for my Raspberry pi 3 project , a 7 inch LCD touch screen from Waveshare.com , this is a great addition to my Raspberry pi hardware. it can also … Continue reading

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Raspberry Pi Sense Hat, Locating and using the sense-hat.py module

Raspberry pi sense hat modules In my last post I introduced the Raspberry Pi sense hat, a hardware module for the Raspberry pi development board that contains the following hardware. 8×8 RGB LED matrix, five-button joystick, 40 pin pass-through GPIO … Continue reading

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