Category: Educational

Fiber Modules

Fiber modules have been around for some years. The picture below show a 14.- USD 8 x Ethernet/2 x Fiber Mux/Switch that can be found on AliExpress etc. I have also seen smaller modules and 16 x Ethernet modules in the same price range – also boxed versions. The interesting thing about these is that…

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CANopen/SIIS2 – Part 1

The industry around me is a heavy user of CANopen (SIIS2) which is the “Subsea” version of a CAN protocol. CANopen is similar to Modbus, but it offer more functionality. It is also a more complicated protocol stack that tend to cost from 5-15K USD depending on content. I have written CANopen protocols in the…

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Dark Theme in C#

Many modern applications use custom theme/styles, but this is actually far more difficult to implement than you would expect on Windows. Windows have a lot of standard GUI components where you can control most, but not all colors and styles. So, if you want dark theme you either need to buy a library or start…

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BasicPI Designers

UML is a well accepted standard for modeling complex software solutions, but it has never reached executable accuracy. The standard lack a technique that allow executable logic, which is exactly what PLD does. This is key to having a tool with 1:1 between diagrams and code. I started modeling with Entity-Relationship Diagrams years ago, and…

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UML State Diagram

UML State Diagram is a standard, but I find it’s implementation into tools to be wage. So, I implement my own adaption because I intend to have a 1:1 with actual source code. This is not uncommon as most automation tools will have to make adaption in areas where executable accuracy is weak. I was…

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UML Designer

Just showing a test diagram on the UML State Engine Designer I am making. It is stoll lots of work and details left, but progress is actually going fast the days I work on it. As for now this is just an experiment. A state engine can visualize some top level flow, but the details…

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KiCAD 3D Packages

I must admit that the realism in KiCAD’s 3D model is growing on me, it is great for precentations in here. Adding a 3D package was about selecting an associated 3D model file, so from now on I saved a copy of this footprint with the associated model in my own extension library. Adding drill…

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2-Screens in use w/KiCAD

This is a screen-shot of my two screens. I have PCB router on left and schematics on right. As I work on PCB the schematics will show the associated part – neat little detail. KiCAD is actually multiple applications so its perfect to take full advantage of multiple screens as you work. I have routed…

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