Abstract
VLC-based data transfer technology is one of the concepts of energy efficiency by utilizing existing light sources as media transfers. VLC is proposed to be part of the 5G technology so that its development and application is predicted to be very wide. The application of VLC is one of them in medical instrumentation. In this research, we proposed the prototype of VLC as an electrocardiograph (ECG) signal transfer media. This system consists of a transmitter and receiver using half-duplex mode. Transmitters use LEDs as light sources arranged in arrays and equipped with P-N-P type transistors as LED drivers. The receiver uses a light sensor in the form of a phototransistor. We carry out transmission testing in rooms with several lighting levels (0, 15, 30, 100, and 200 lux). From the test results, analog ECG signals able to sent with a maximum transmission distance of 450 cm.
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