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PCB Design
How to Create a CI/CD Pipeline for Your PCB Design
In this article, Ari Mahpour demonstrates how to create a full CI/CD project example using GitLab, which offers a free Git server with built-in CI/CD capability.
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An Introduction to NFC
I used to work in a research lab that worked primarily with RFID (Radio Frequency IDentification) and NFC (Near Field Communication) technology, particularly for the agriculture industry and cattle identification. These were very specialised fields. However, the lab also worked on projects which involved retail and various other applications for NFC. It’s an amazing technology that you might be using every day without thinking about it - from
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USB PD: Power Delivery for Your Next Project
Since its introduction in the late 90s, the USB standard has never ceased to grow in popularity. Multiple revisions of the standard have kept it relevant to the growing demands of data delivery, which has made it the ubiquitous choice for electronic devices. There has been a growing trend toward USB being a power delivery interface with data, rather than a data interface that can supply power, as the 1.0 specification originally intended. To
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EMI Case History — Noise Problems And Their Solutions — Part 1
There is an old saying about experience being the best teacher but, more often, the appropriate adage is: “Experience is a hard teacher because she gives us the test first, the lesson afterward.” (Vernon Law). This can definitely apply to the PCB product development process when problems missed during design can arise when the working hardware is put into operation. The foregoing is an apt description of an EMI design issue that we encountered
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The “Mini Monkey” Board – Using the LPC55S69 in the VFBGA98 Package
For as long as I can remember, I have been a microcontroller addict. In 2020 there is no shortage of component selection. We are also at an interesting period where MCUs can tackle complicated tasks that we may have chosen a high-end applications processor for. Quite a bit of my career has been focused on doing really awesome things in the MCU space as you get a great balance of cost, design control, and simplicity. I am always on the lookout for
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Perfect Styling for Your Organization with Altium 365: How to Keep Schematics Organized
We all had a moment when piles of annotated schematics were growing on our desk, and we started losing track of what was what. What revision is this? Did my colleague check it? Is this IC the new one, or the one that used to go up in flames every full moon? In this article, I want to show you how to how to keep schematics organized and make a stunning personalized schematic template for your business that is ready for Altium 365 and the 21st
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Why PCB Power Rails Need to be Low Impedance
Read to learn what constitutes power rails, how it functions, and how fear can be a driving factor in making bad design decisions.
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EMI Case History — Noise Problems and Their Solutions — Part 2
In Part 1 of this article, I described an EMI noise problem occurring in a LCD touch screen display of an autonomous robot cleaning machine. In order to provide consulting services we needed to solve a problem which originated because of the ground and supply bounce in the leads of the IC devices that were incorporated into that display. In Part 1, I also described the type of equipment in which the operation problem arose, the origin of the
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How to Create a PCB Manufacturing Cost Estimation
Unless I receive a layout job directly from a manufacturer, my clients will usually ask if I’m a manufacturer. My company doesn’t manufacture boards, but I think it’s important to keep clients informed of the manufacturing costs for new PCBs. Once I started gathering estimates for some of my first projects, I started to better understand the primary cost drivers of PCB manufacturing and how to properly structure a comprehensive estimate for my
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What is a Schematic Netlist for Your PCB?
If you’ve created your next great schematic, there is a lot going on behind the scenes in your design software. The connectivity between components in your schematic can be reduced to a small number of logical and electrical identifiers. The schematic may provide a graphical picture showing connections between different components and pins, but to really understand everything about your design, you’ll need an important document. A schematic
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DIY Vapour Phase Reflow Control Shield
With all the projects I’ve been working on, I want a better way to do reflow soldering during board assembly than just using a hot air rework station. Initially, I was looking at converting a toaster oven to run picoReflow, and building a Pi Hat for the required electronics but I was finding that a good convection toaster oven on Amazon was starting to look rather expensive for the quality of work it would do. Another factor that I had to
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Earn Cash Rewards by Referring Friends to Altium
“We use the Altium 365 workspaces as a way to keep all our components, designs, and projects all in one place so that everyone is working from the same source of information. It is also useful for keeping track of these parts as well, and we found the version control system in that very useful.” - Chris Brawn | Senior Design Engineer | Skyships You’ve always been our biggest fans. Why not get a bonus for your efforts? Altium’s referral program
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Altium Designer 20 Changed My PCB Routing Techniques
I just finalized my first PCB design using Altium Designer 20®. At the same time, I tested some new AD20 features, and in this article, I’ll share my thoughts about new PCB routing tools which had the biggest impression on me: sliding, and any-angle routing. Having read about and watched videos on these PCB routing tools beforehand, I was eager to try them out. These new features have given me more options for my PCB routing techniques. New PCB
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Stealth Aircraft, Meet Quantum Radar
If you read Max Clivefield's recent article on quantum computing and quantum communication, then you've got a head start on most when it comes to understanding entanglement. These esoteric areas of technology are likely to become more common in the coming decades, and could revolutionize modern technology. I'm skeptical that we'll have desktop quantum computers or quantum cell phones, but these new technologies are worth developing as they have
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Modeling Copper Foil Roughness Factor in Altium Designer's Impedance Profiler
Advanced transmission line models for long interconnects require that designers include copper foil roughness calculations in order to determine accurate impedance. Without the right models or design software, you’ll be left to estimate the skin effect impedance, dispersion, and parasitics in your PCB. These models can be difficult to work with by hand if you’re not mathematically inclined, but the right design tools can be used to quickly
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Embedded System Security for Hardware Designers
Today, I had the pleasure of an open discussion about hardware hacking with the security experts at VDA Labs in Grand Rapids, Michigan. James King, Ethical Hacker, and Josh Sharpe, Cybersecurity Consultant, walked me through what they look for when trying to compromise an embedded system. I thought I would see what hardware designers can do to slow them down and pass on that information to my fellow designers. VDA Labs helps companies determine
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High Density PCB Design Game Changer: 25 Micron Trace and Space
Have you heard the latest development in PCB fabrication processes? High density PCB design follows the same trend seen in integrated circuits, where more functionality is packed into a smaller space. The smaller spacing in these boards makes precise manufacturing more difficult, which places important DFM rules on your high density PCB design. Now with the A-SAP™ process, you can place trace widths and spacing down to 1 mil, allowing tight
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