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Profile for uwezi

240×320 TFT with touch on an ATmega328

Breadboard construction.

It’s been a while since I purchased some TFT modules on eBay. These modules come in different sizes and two varieties – with and without integrated touch controller XPT2046. The controller in the TFT display itself is an ILI9341 wired up to be controlled by SPI.

240×320 pixel TFT display with integrated resistive […]

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Replacing three remotes

The (almost) final remote control.

You know the problem – with every new gadget comes a new remote control, and while there are programmable and universal remote controls out there, they will never just do what you want.

The three main remotes in my living room.

For controlling my tv, my digital box and one of the wall […]

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(Deutsch) Ach Ihr schon wieder

"Rechnung" der .DE Deutsche Domain

Sorry, this entry is only available in German.

Hacking an AVR programmer II

USBasp v3.02 from eBay, top side. (photo Sven H)

This is a follow-up of my most popular post, Hacking an AVR programmer.

MX USBasp v3.02

Recently there have been quite a few comments about a new version 3.02 layout of the USBasp programmer available from many Chinese ebay sellers, which appears to be incompatible with my previous hack. The problem is still that […]

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Assembling an USBasp

2016_usbasp_uz

…at eight times timelapse it only takes 4 ½ minutes…

http://www.sciencetronics.com/greenphotons/wp-content/uploads/2016/11/20161102_usbasp_480.webm

LaTeX: x11names resorted

xcolor_names_900

I like the color palette which the xcolor package offers under the option x11names, but I find the list of colors in the xcolor manual a bit confusing. The colors are sorted by names and not shades – so today I made my own little table.

[…]

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(Deutsch) …und die Deutsche Domain – schon wieder…

Sorry, this entry is only available in German.

An USBasp in a new design II

View of the first soldered board.

Most of the time I design and debug my AVR projects on solderless breadboards nowadays. And for that I have been using some different types of programmers by now: starting with the good old STK500, to different versions of USBasp clones from Chinese sellers on eBay.

In order to connect the programmers to the […]

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An USBasp in a new design

Die fertige Platine aus China.

Just a small teaser: today I received my circuit boards from PCBgogo – a layout which I just had sent to the Chinese manufacturer last Sunday.

The finished circuit board from China.

It is a USBasp, which can be placed on a breadboard and at the same time supplies the power rails on […]

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Nerd or not?

Today there was a geocaching event celebrating Nerd Day. I must admit that I wasn’t aware of the significance of today’s date, but I also knew that I can probably be considered being a nerd.

In the early days of the internet, while still writing my master’s thesis in Kiel, I already scored high […]

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