17
2.
Period
describes the reciprocal of pulses in one second
3.
U
pwm
describes the mean value of output voltage (e.g. 0V-5V)
Here we input any value between 0 and 255 to the three pins of the RGB LED to make it flash
different colors.
RGB LEDs can be categorized into common anode type and common cathode type. In this
experiment, we use common cathode RGB LED.
Experimental Procedures
Step 1:
Build the circuit
RGB LED Module SunFounder Uno
R -------------------------------------D11
G ------------------------------------ D10
B ------------------------------------- D9
- ------------------------------------- GND
Step 2:
Program (Please refer to the example code in
LEARN -> Get Tutorial
on our
website
)
Step 3:
Compile
Step 4:
Upload the sketch to SunFounder Uno
Now, you can see the RGB LED flash red, green and blue first, and then red, orange, yellow,
green, blue, indigo and purple.
SunFounder