RGB PWM Driver for 350mA LEDs


Posted on Mar 30, 2013

# This version uses a double sided PCB. Dimensions are approximately the same as the original version. # Removed the second push button switch and components for the RS232 serial interface. # Added 22K resistor between MCLR input and Vdd. This eliminates the need for a jumper on the ICSP header in normal operation. (If you use a 12F683 you can omit this resistor as well since it has an internal pull-up)



# Provision for a surface mount DC power socket. # Removed the power-on LED and series resistor. # Added 47K pull-up resistors to the transistor drive circuit. On the original version, when it first powered on the RGB LEDs would flash at 100%




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