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This is a simple experiment by which one can view diode VI characteristics on a scope using the XY feature. Setup A function generator is used to generate a low frequency (around 2Hz) triangular signal with a peak-to-peak voltage of around -4V to +4V. The resistor-diode network is placed between the function generator positive and…
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Buying and Remarks I had one of the cheap two-in-one soldering stations since college, and although it gets the job done most of the time, the limitations started to get on my nerve, mostly the problem with this kind of station is that the soldering iron heat regulation is bad and it very hard to…
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What is OrCAD? For those who don’t know, OrCAD is a circuit design software suite designed by Cadence Design Systems. OrCAD is one of the big four with a 29% market share according to the below slide from Altium 2016 presentation. According to my own experience, I see a lot of designs with OrCAD. I…
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I just wanted to dedicate this post to express my admiration of the font Courier New and how elegant it looks on schematics. NON NDA violating excerpt from one of my designs for illustration purpose 😀
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I’m a seasonal podcast person, some times I’d follow a podcast then I get fed-up, the exception here is THE AMP HOUR which I follow weekly. One thing that I really like about THE AMP HOUR is that it is not just a technical podcast, but rather a chat about the industry. this makes it…
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I was searching for some resources to learn OrCAD and I came across this book. At first, I searched on Amazon and found it to cost $80 without including the shipping. By chance as I was searching for online reviews of this new edition, I found the book to be available on Elsevier for…
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lately, I was designing a GSM/GPRS Module based on SIMCom SIM800, Something like SIM800L Coreboard. For some reason, my employer was not able to get this module and we were not very happy with this crude design. So what do we want in the module? Rigorous design, SIM800L Core board almost has no components, we…
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Jlcpcb is getting very popular now, they are very cheap and the PCB quality is good (as agreed by many reviewers). You can check their manufacturing capability on their website. For my order which was about 85mm X85mm four-layer board, and anything under 100mm X100mm, you get an offer of 5 PCBs for 28$. The process…
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The past couple of months I was heavily invested in designing a development board for a Cortex-M7 MCU (stm32F767VIT), The stackup consists of four layers. I really learned a lot from this project, and also had a hard time with some of ST guidelines and the fact that they don’t follow it on their Nucleo…
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To Make a Long Story Short: Mouser is a versatile supplier for Electronics parts, With a nice interface to quickly find the parts you need. Unlike Digi-key (another popular supplier), orders that are more than 100$ get free shipping via DHL and FedEx to Egypt. shipping is fast( takes about 5 days from submitting your order).…
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