Advanced RGB LED 1.0 Kit
December 2013, Rev 1
− 3 −
http://www.EasternVoltageResearch.com
Advanced RGB LED 1.0 Kit
Circuit Description
The Advanced RGB LED 1.0 utilizes a PIC12F683 microcontroller, U2, which outputs a
3-channel pulse width modulated (PWM) signal which controls a single high power RGB
LED module, D1. The output PWM signals are modulated to produce a wide array of
colors, brightness levels, and effects that are used to control the current flowing through
each of the red, green, and blue dies of the LED, D2, via the MOSFET transistors, Q1,
Q2, and Q3. Voltage regulator, U1, provides the regulated 5VDC required by the
PIC12F683 microcontroller, U2, while diode, CR1, provides reverse voltage protection
against a battery or power supply that is hooked up backwards.
A pushbutton, PB1, allows the user to cycle through the various modes of operation
which include, but is not limited to, the following effects:
•
Steady-state colors (red, blue, green, purple, white, yellow, cyan)
•
Pulsing colors (red, blue, green, white)
•
Different brightness levels for steady-state colors
•
Strobe effects (red, white)
•
Police strobes (red and blue alternating) – Different flashrates
•
Mood light modes (cycles through all colors of the spectrum slowly)
