The Miniviax is small model for a sun tracking photovoltaic assembly.
It is controlled by a microcontroller based circuit board.
The purpose of the model is to show the features of the circuit board.
The mechanics was not built by me, but is a demonstration model I got hold of.
2x20 Character LCD
Integrated real time clock and radio clock (DCF77) receiver
Graphical Control Software for Windows and Linux
Besides the microcontroller only few parts are needed
Cost for circuitry is less than 20 EUR (microcontoller included)