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Who can help to set up a Maxun One solar bike DIY community? I want to make the Maxun One solarbike accessible to a wider audience. This can be achieved by finding a suitable manufa...

Introduction This device has two uses:  Yamaha mid-drive motor battery hacking dongle to use any 3rd party battery instead of the original Yamaha battery. Described in this article. Bluet...

The Arduino Nano DIP is similar to other Nano boards but it uses the new generation 8-bit ATtiny3217 processor instead of the older ATmega328P. It maintains compatibility with the Arduino Nano w...

With this tool you can precisely dispense very small dots of solder paste. Although this solder paste dispenser is cheap and uncomplicated, it works better for small SMD parts than many automatic d...

TODO.... Bluetooth Watt meter cockpit See also Maxun e-kit cable killer Bluetooth Watt meter cockpit Bluetooth Watt meter dongle Yamaha hacking dongle Two-wire current-controlled bus Sa...

Eliminating the disruption of the program by the serial monitor while debugging Normally, you can easily debug your Arduino sketch with the serial monitor, but this is not always possible, as the ...

I made this switch library years ago when decent switch libraries didn't exist, and over the years it has become more and more extended. It is now the best out there according to people who have co...

Introduction Efficient speed control is crucial for a comfortable and enjoyable e-bike riding experience. This article presents an innovative solution for speed control through an ergonomically de...

Related articles Small ATtiny self-clamping program connector For (TAG) programming and testing, I don’t use physical connectors on the PCB but connectorless self-clamping zigzag connectors. ...

Abstract To reduce the cabling on an ebike, I have developed a simple, but very robust, 2-wire control bus. The signal and the power supply go together with in total two wires: GND and 5V.  T...

I'm an inventor with over 40-years of experience in electronic engineering and software development. I have delivered unique engineering solutions to the commercial industry on a wide range of pr...

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...

This advanced controller was used by many people and has a unique reduced inrush current circuit that prevents main fuse blow up.

The UPC is an Arduino board, complete with power supply, triac power control, display and menu buttons. Because of the many built-in functions you can quickly and easily create all kinds of useful ...

Vacuum tubes are awkward, need always 6.3V filament and high supply voltage? No, they can also work on 3.3V. I have built a vacuum tube pre-amplifier that runs entirely on 3.3V, inclusive the ...

The SAM 15x15 is a very small Arduino development board, with the same powerful controller as the Arduino Zero: the SAMD21G18. All I/O pins are used: despite the small size, it has more I/O pins th...

With this article I would like to draw attention to the fact that I would like to use the Kunteng controllers for my projects, but that Kunteng does not respond to complaints via email that the con...

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 moto...

I have developed a cheap multimeter 0.02% precision reference by which you can calibrate a digital multimeter yourself. Here we calibrate my favorite multimeter, the PeakTech 2010, it has a lo...