Algorithm 2. Laser Receiver for LCS:

Receiver Algorithm: Deciphers the laser pulses back into the original data types. It uses a solar cell to detect the signal and processes the light variations to reconstruct the transmitted information.

Input: Laser signals read through the solar cell

Output: Output the interpreted data appropriately

1: initialize receivedMessage as an empty string

2: initialize receivedChar as a character

3: while true do

4: receivedChar <- receiveChar() function

5: if receivedChar is a newline character then break the loop

6: receivedMessage <- receivedMessage + receivedChar

7: if receivedMessage starts with a text identifier then do

8: print “Received text: ” + receivedMessage

9: end if

10: else if receivedMessage starts with an audio identifier then do

11: initialize startTime as the current time in milliseconds

12: while the difference between the current time and startTime is less than 10000 ms (10 s) do

13: audioValue <- receiveChar()

14: scaledValue <- map audioValue from range 0-255 to 0-1023

15: write scaledValue to audioOutPin

16: write 0 to audioOutPin to turn off the speaker

17: end while

18: end else if

19: else if receivedMessage starts with an image identifier then do

20: for i = 0 to 239 (representing each line of the image) do

21: for j = 0 to 319 (representing each pixel in the line) do

22: pixelValue <- receiveChar()