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I have inventoried my on-going projects, because I honestly speaking lost the overview. I had started many projects but many of them are on-hold because they, on closer inspection, cost years to finish and in the meantime other things had become more important and I keep getting interesting new ideas.

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During the development of the Maxun One solar bike, I constantly needed special equipment, parts and software, and so I rolled from one project to another. In September 2010, I started this website where I share my ideas and designs with the world.

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PCB manufacturing and assembly at Elecrow in China

I’m an inventor and regularly make electronics prototypes. A customer drew my attention to Elecrow, here you can get high-quality PCBs at a lower price.

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With this controller, you can control the power of a spot welder. This is done by setting three timings: the pre-weld pulse, the weld pause and the welding time.

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The SAM 15x15 is an Arduino development board of 28x28mm, with the same powerful controller as the Arduino Zero: the SAMD21G18. Despite the small size, it has more I/O pins than the Arduino Zero or SAMD21 Mini/Dev Breakout: 34 instead of 21. Due to the very small dimensions it will fit easily into all embedded electronic projects, even in microdrones.

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An Arduino ISP connector is used, among others, for burning a bootloader and for programming ATtiny chips. When the ISP connector is only used once for programming, and than never again, it would be more convenient not to use a connector.

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Bosch Active Line 3 printed circuit board explained

For my solar powered bicycle, the Maxun One, I designed a very powerful and lightweight mid-drive motor. I also wanted to investigate whether I could use a Bosch Active Line 3 motor. The Bosch motor weight is 2975g, this is relatively lightweight for a mid-drive motor, but it is still too heavy for my solar bike.

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To be able to modify and repair the Chinese S-KU63 e-bike motor controller I have redesigned it. The S-KU63 may also give insight into other Chinese motor controllers. Note that the S-KU63 is the successor of the KU63.

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DIY simple manual SMD solder paste micro-dot syringe dispenser

To build the dispenser, we just need a 1mL injection syringe, a wooden stirrer, a glue gun and strong yarn. Drill 1.5mm holes in the wooden stirrer for the yarn.

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I have developed the D.I.Y spot welder because I needed a special spot welder for the building of my Maxun One solar bike. It turned out that the spot welder is being built by many people worldwide, so I have published here the entire building project.

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I have developed a cheap multimeter calibration reference by which you can calibrate a digital multimeter yourself. Here we calibrate my favorite multimeter, the PeakTech 2010, it has a lot of features and it cost just €35.

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Switches and push buttons need debouncing. It is straightforward to do this with software, using a library. The advantages of the Switch library are:

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These are my inventions up to now, see also the inventions in the pipeline. If you are interested, please contact Business Partners.

Do you have any comments about the website or problems with shopping? Please let me know.
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