Algorithm 1. Laser Transmitter for LCS:

TransmitterAlgorithm: Designed to interface with the user, allowing them to select the type of data for transmission. It encodes textual, audio, or image data into a laser-readable format, turning on and off the laser to transmit data as a series of light pulses.

Input: Text, Image or Audio

Output: Laser turns on and off to transmit the converted bits of data

1: define transmitText(message) function

2: trim newline characters from message

3: transmit special identifier for text data using transmitChar((char)1)

4: for i = 0 to message.length()-1 do

5: transmit message[i] using transmitChar(message[i])

6: end for

7: transmit newline character using transmitChar(’\n’)

8: end function

9: define transmitAudio() function

10: transmit special identifier for audio data using transmitChar((char)2)

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 <- analogRead(audioInPin)

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

15: write scaledValue to ledPin

16: delay for 1000000 / sampleRate microseconds