Author: admin

  • Stereotypical beginners electronics project pt2

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    I’ve got some LCM7215’s on order for a work project so I’ve got some downtime until they are due to arrive. I’m going to run through the LTSpice simulation process, and look at the alternative solutions available. Assuming you haven’t already, you will need to download LTSpice. This is a free Spice simulator provided by…

  • Stereotypical beginners electronics project

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    The In-Laws have just moved house. I say move house, but what I mean is sold their old self-build, bought a field in deepest darkest Norfolk and are planning to self-build again. This is great news because it means they’ve got a blank canvas to fill with numerous eco-build projects. The first of which is…

  • Free Day recap and blasted Android

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    This post will be a shadow of the one that I had originally composed using the WordPress for Android app that I installed last night. It had wit aplenty, but my phone decided that it had a better idea – and managed to lose every character. With that aside, let me get started. I completed…

  • Excuses

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    I made a promise that I would have some extra info on stepper motors, and clearly this isn’t it. I got very distracted with the parallel port work. Parallel port stuff used to be easy in Win98 and earlier, but got more difficult in XP. By more difficult I mean I had to install “inpout32.dll”…

  • Stepper Motors Part 2

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    Hopefully some of you are still with me, and you haven’t blown up your supply, switching device or coil. Before we continue I’d like to ask a question; what current can your supply handle? Let’s take a brief look at Ohm’s Law, or at least the mathematical equation describing Ohm’s Law. The equation V=IR is…

  • Introduction to Stepper Motors

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    If you are reading this, then you probably want to know more about stepper motors. I will start at the basics and work my way up. I am going to be referring to the permanent magnet 2 phase variety. Other stepper motors exist but are beyond the scope of this article. A stepper motor is…

  • The Perils of Windows Update (Error 80070002)

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    I switched my PC on this morning, and a little message popped up asking me to update my Windows 7 machine. I have configured my machine to notify me when an update was available and to not install it itself – and those wishes were indeed complied with. Now an up-to-date machine is a happy…

  • Hello Caller, You Are Through To The Helpdesk Part4

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    If you remember my last post, I had finished sorting out the hardware, and had just taken the plunge with fishing around for working embedded software. I’ll be honest, it didn’t take many attempts to find a “working” solution, but each attempt felt like an age due to the switching between programs to use XMODEM. For…

  • Hello Caller, You Are Through To The Helpdesk Part3

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    Following the advice of the people at www.openipcam.com I downloaded the entire contents of flash using Kermit95. Kermit95 is a program developed by Columbia University, but was retired in July of this year. The full source code is available, but as of writing this, there have been no compiled binaries. There exists a command “d” that…

  • Rules Are Made To Be Abused

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    In case you weren’t aware, BT is now blocking access to Newzbin. That isnt stopping the MPA though, as they are now looking to get Newzbin blocked from other major ISPs including TalkTalk and VirginMedia. Let me start by saying I am against blocking content on the internet. Sure there are things that I don’t…