Category: Educational

Linux Ethernet Switch/Router Hat

The most obvious Hat to use HLK-7688A on is a Ethernet Switch or Router with SPI backbone support. I have ordered a dev unit so I can test out this possibility. The Ethernet switch part is very straight forward, I also see a very decent SPI, but I need to dig a bit more into…

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The Age of Linux

Linux started seeing a serious increased usage in embedded projects with raspberry PI due to it’s availability and low cost. And the last years have provided a large number of low cost embedded Linux solutions. They are getting smaller, more powerfully and decreasing in cost making them very attractive in projects. Raspberry PI might still…

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STCubeIDE Review 2

I have struggled a little to find an IDE I was OK with, but finally settled with STCubeIDE or Eclipse as it actually is. This is IMO one of the smarter moves that ST have done to support their MCU’s. The editor is “ok”, it compiles, download allow you to debug multiple targets + I…

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DSO150 Oscilloscope Annotated

DSO150 is very easy to use and operate like a multi-meter, and this caught my attention because the other Oscilloscopes I havve needs to be set up. DSO150 is basically only to switch on and use like a Multi-meter – you instantly see the signal and it was surprisingly easy to operate the HMI. I…

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DSO150 – 20$ Oscilloscope

This Oscilloscope took me by surprise. I ordered it mostly for fun, but it turns out to be very functional and easy to operate Scope in a multi-meter format. 200Khz actually cover a lot of the activities I do and by attaching a battery you get a very handy, single channel Oscilloscope in a handy…

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Rock PI 4 b

I accidentally came across “Rock PI 4 b” and first believed it was about Raspberry PI 4 as I realized this is a board based on Rockchip RK3399. It is very similar to Raspberry PI 4, but contain some very interesting differences. Of most interest for me is that the form factor and GPIO pin…

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Raspberry Pi 4

Quad core 64 bit Cortex A72 1.5 Ghz 2 x 4K HDMI ports USB 3 Gigabit Ethernet Up to 4GB RAM and more Priced at 35$ for 1GB and 55$ for 4Gb this starts to look like a serious challenge for more classic desktop computers. I tried to buy one, but getting the “sold-out” from…

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STCubeIDE – Multiple Debug Sessions

I am using 2 x XPortHub cards called Left and Right in the debug config. The picture show both cards being debugged in single step at the same time – I am impressed! This was exactly what I needed right now. The only trick is to start the GDB server on different TCP ports +…

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STCubeIDE Review

ST recently acquired Atollic TrueStudio and merget it with CubeMX into STCubeIDE. Having searched for a proper IDE to use I must admit this one actually do the job nicely. To start a project you use CobeMX now integrated into the IDE, make your selection and as soon as you switch to code it is…

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STCubeIDE

ST have lately purchased True Studio, so it was not a big surprice to see that True Studio now is merged with CubeMX. I am not a big fan of Eclipse based IDE’s, but this one is great for getting you project off ground fast. CubeMX saves you a few hours as you start the…

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