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. 2017 Oct 11;4(4):045001. doi: 10.1117/1.NPh.4.4.045001

Fig. 3.

Fig. 3

The Python-based GUI. The LED on the PCB is controlled through this Python-based GUI, which can be run on any computer interface. Once installed and the IR controller connected to the computer, the LED is turned on by clicking “activate LED” and turned off by clicking “STOP.” The ON time, OFF time, and intensity can be altered to implement pulse width modulation and light intensity. The GUI also calculates and outputs the period and frequency of the on–off times entered into the GUI.