I like to think about an input signal in the four steps autlined above: 1 – Signal is collected (or received) in raw format. typically sampled on a digital or adc pin in raw format. A 12 bit ADC will have a raw value between 0 to 0xFFFF. 2 – A raw value is of…
This figure show a key principle in modern HMI design. I have only illustrated 2 input signals, but the principle is the same regardless of what signal or what hardware you use. Using a analogue signal as an example you collect that from a sensor or ADC channel. The signal will then be normalized and…
My previous entry talked about coding in QML. I am still on the learning path here, but I am slowly finding my way into QML. It is a steep learning curve, but once you start master the technology it also get easier and the graphical result is the best I have seen so far. It…
This application is a replica of work I have done in Qt and C# before, but this time I use QML which is a very different technology. At first I must admit that it is overwealming and complex. One of the steepest learning curves I have experienced as it involves C++, Qt, QML, JavaScripts and…
This is Qt Creator 4.12. I have worked with Visual Studio for many years, so every IDE get compared to VS. QtCreator does the job as an editor, but it suck as a debugger. Even STM32CubeIDE that uses the same GDB is far better that Qt Debugger. And working with QML you might want to…
This demo is made in Qt using 2D raster graphics and works very well, but performance drops as I start adding animation effects into the screen. Performance was the reason I wanted to try out C#/.NET 4.6.2 and newer which also is much easier to work with than Qt. Performance is different in the later…
I did an attempt of using the 2D raster engine in Qt and while the graphical result was stunning I had to face the fact that performance was not. I moved back to C#/.NET because performance there was better after .NET 4.6.2. With C# I can do 10 x line plots at 40ich frames per…
One of the key features on the boards are that they assemble to a larger control system by just clicking them together. I have around 12 different boards by now and will start adding new boards and variants as I convert all my electronics from Target 3001 to KiCAD. These two board have 5V, Device…
The wheels above are cool, specially since they can carry a lot of weight. But, the motors are 2 x 2.5KW and the belt driven design is very open making it easy to be contaminated. The powerfully motors are more designed for speed than for driving slowly, but I will optimize that later. Position system…
I just started on 2 new motor drivers for my new project and soldered DRV8301 which is a dense 58 pin crab using an old solder paste. Soldering these crabs are easy and done in minutes, but I struggled with this paste and ended up with a driver that had pins not connected causing 2…