• Building a high quality photogate 

      Ladino, Luis Alejandro; Rondon, Hermilda Susana (IOP Publishing LtdBristol, Reino Unido., 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 ...
    • Building a propeller based-microcontroller timer system 

      Ladino, Luis Alejandro; Rondon, Hermilda Susana (IOP Publishing LtdBristol, Reino Unido., 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 ...