This is only a short post really. With my watch, I’d been trying for AGES to try and get the RTC working with the external crystal. It might seem simple to some but it was certainly not simple to me and ST don’t give an example, unlike most things; in their standard peripheral downloadable pack. I […]
After attempting a black and white version (https://hsel.co.uk/2014/09/03/floyd-steinbergesque-dithering-in-matlab/), I decided to further improve my algorithm through different methods. Currently, it uses a 3×3 macroblock size and white this works well for larger images and looks pretty cool, it doesn’t scale well with smaller images! For that reason, I’ve moved to a 2×2 macroblock size for […]
Well I’m in York at the moment on the UKESF workshop thing so I haven’t actually had much time to do any real electronics so its software o’clock! Whenever I’m not doing much, I quite enjoy dabbling in image processing, its not one of my fortés but its always fun so today, I decided to […]
Well today, I thought it was time to add a new font to my graphics library! Its still very alpha. The new font is complete freeware and is names “Share TechMono” (http://goo.gl/flXU7B). I rendered it using GLCD font creator (http://goo.gl/vmnf5u). The problem with this software however is it spits the data out into bytes and […]
Today was payday (Wahoo!), meaning I can buy some really cool and potentially pointless electronic goods to mess around with! I lie, I bought some before payday but shhhhh. My (not so) extensive list of stuff involves: 128×64 LCD based on the ST7920 controller (http://goo.gl/CIoVSk) OV7670 omnivision VGA sensor (http://goo.gl/oJUF4o) A new EPM240 CPLD board […]
As I’ve previously said I’m not actually very good at analog design – due to a mixture of not really being taught past the basics and maths not being my strong point! Nonetheless, I enjoy doing it and when the circuits I design work as I intend, its a great feeling of achievement, much more […]
Well! Apart from having a nice little travel into London to see the family and a haircut, what have I been up to today you ask? The answer to that resides in my Colour graphics library! Its not very often that I improve on my libraries unless I need to, or I’m bored as I’m […]
Whenever I want to test something out really quick, I always find that Matlab is the easiest way to get things done with ease and don’t worry if you don’t have it, most of the functionality can be found in FreeMat (http://goo.gl/1a6zA)! So today, I’ve come up with the thought of adding some stuff to […]
Well! Today, I didn’t feel like doing anything particularly productive so libraries were pretty much not an option. Instead, I decided to make a really simple oscilloscope which merely displays the current sample voltage and a trace of the samples on the screen using my ILI9163 and graphics libraries. The input voltage is specified from […]
Since printing floating points is probably much more important than the speed of this library, I’ve included a new function that allows the printing of floating point numbers! The function explanation is really simple and here it is: int8_t PNumF(float Num, uint8_t X, uint8_t Y, uint8_t Prec)Just like with the standard PNum function, this function […]
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