Just follow the schematic diagram to complete the construction, and use any standard 9VDC Arduino power source to energize the system. Here, for demonstration, three different color LEDs (Red, Green ...

A good example is the TPS92512 which allows for control of high brightness LEDs using PWM which ... this circuit! Also, using a MOSFET for Q1 is of little ... MOSFET and Arduino. You ...

Or use WS2803 LED drivers that incorporate their own shift registers, handle the PWM for you and cost about 49 cents for 18 outpus (less than 3 cents a channel). If you can find them. Report comment ...