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Building a propeller based-microcontroller timer system
(IOP Publishing Ltd, 2019)
In this work we construct a timer system consisting of both hardware and software to be used in introductory-level laboratory physics courses. The Parallax P8X32A propeller based-microcontroller hardware consist of a board ...
Building a high quality photogate
(IOP Publishing Ltd, 2019)
In this paper we present a method to construct a simple, sturdy and inexpensive photogate to be used in elementary physics laboratories. The great advantage of the proposed design is that it has no transmitter-receiver ...