**Figure 6.**

*Li-Fi receiver.*

Receiver consists of Photo diode which receives the signal transmitted by transmitter. Transmit the received signal to the controller. FN-M16P module is a serial MP3 module which includes a perfect integrated WMV and MP3 decoder chip. Further, it includes micro SD card drivers and supports FAT32 and FAT16 file systems. It is able to play back specified sound files. Speaker or earphone is used to give audio signal to impaired person(**Figure 6**) [6].
