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There are many unused connections on the board. They are partly used for the production and are also
useful for your own projects. You can reprogram the controller and develop your own projects by using
the six pin ISP port (at the bottom). Do this only if you already have experience with microcontrollers,
because an error may damage the system. In addition, there are eight free port connections for any
task. The C4 port is also active in the supplied firmware and is used as test input. When you connect C4
and GND and then apply the operating voltage or activate the Reset, a test display appears prior to the
real game, where all LEDs are controlled.
The online magazine www.elo-web.de informs you about additional applications and other technical
details. If you have played enough and wonder, what other functions the device has, then take a look
inside the magazine!
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