Shown here is a sample acquisition using the Si1120EK. In this example, the LEDs labeled red, pink and blue are enabled using the jumpers on the board. In the top plot, a hand moves from left to right and then back again. From the figure the designer can see the red and blue traces start at the same time indicating that the Si1120 is receiving the reflected energy from the hand from both LEDs at the same time. The only difference is the magnitude since the blue LED is farther from the Si1120 then the red. As the hand moves to the right the pink LEDs reflected energy starts to get detected as shown by the increase in magnitude. The opposite is true for the reverse direction in the plot. As the hand moves right to left the pink leads the red and blue.