Final Results.

Test.

As for the final test, an arduino code was written to trigger onle specific leds from the matrix.

The goal was to light up only the right column of the LEDs. To accomplish that, the necessary binary number is neeeded to be generated, since our shiftregisters are controlled by means of binary numbers.

By looking in the bottom schematic, the labels connected to the shift registers that are in red, need to be set high in order for the entire right column to light up. That is 11111100 for the first shift register and 0001000 for the second. This results in 252 and 16 in decimal value, which we introduce accordingly into the arduino code.

As a result, whenever the infrared signal is received on the right side of the LED phototransistor, we get the right side lighting up three times. Similarly we can control any other sequence of the leds.