6 EZ-Color Evaluation Kit Board Guide, Doc. # 001-15643 Rev. **
Figure 1-2. CY3261A-RGB Demonstration Board, Control Side.
1.2 Onboard Control
1.2.1 The ON/OFF Button
The RGB board has two buttons (labeled ‘S1’ and ‘S2’) and a liquid crystal display on the opposite
side of the board from the high power LEDs. These buttons allow the board to be demonstrated with-
out using a personal computer to control the board. When held properly for use, the buttons are on
the bottom edge of the board and the liquid crystal display is at the top left edge of the board. When
held in this orientation, button S2 (the right-most button) alternately turns the LEDs ON and OFF.
The default setting, when power is applied, is OFF. Pressing button S2 illuminates the LEDs.
1.2.2 The Color Selection Button
Button S1 (the left-most button along the bottom edge of the board) cycles between seven preset
colors. The initial color is white. Pressing button S1 changes to the next color of the seven preset
colors. The sequence displayed is white (power on default), red, green, blue, yellow, magenta, and
cyan.
Note If the board is controlled from a personal computer using the USB interface, the color displayed
upon power up and pressing the ON/OFF button will be the last color setting selected using the
application. If the board has never been controlled from a personal computer, or the last color
selected could not be displayed at the selected flux, the LEDs do not illuminate (an impossible color
Caution: The purpose of this demonstration board is to demonstrate the use of an EZ-Color
HB-LED Controller for controlling high brightness LEDs. DO NOT LOOK AT THE HIGH
BRIGHTNESS LEDs WHEN THEY ARE ILLUMINATED! These devices can cause permanent eye
damage, even when viewed for a short time!
Contrast Adjust Color Select (S1) On/Off (S2)
