#Arduino rgb led test code#
#Arduino rgb led test series#

Connect the common cathode (short leg) of the LED to a row on the breadboard, and the three long legs to different rows.

Connect the RGB LED to the breadboard.

KY009-RPi-PWM.zip To start with the command: sudo python3 KY009-PWM.Steps Interfacing RGB LED with Arduino UNO # By the mixtures of the different brightness levels of the respective colors # and by means of a for-loop to run through the color intensity of each single color from 0-100 # This has the task to create a separate variable for each color # how long the said color is to be indicated # After the color was set, by means of 'time.sleep' the time is defined, # By means of the respective color variable, the color intensity can be changed # This function generates the actual color # Here we declare the output pin to which the LEDs are connected. # Required modules are imported and set up

#Arduino rgb led test code#

This is shown in the following code example. Several LEDs are integrated in this module - different colors can thus be created by superimposing different brightness levels. KY009-RPi-ON-OFF.zip To start with the command: sudo python3 KY009-RPi.py

GPIO.output(LED_Blue,GPIO.HIGH) #LED is switched on GPIO.output(LED_Green,GPIO.HIGH) #LED is switched on GPIO.output(LED_Red,GPIO.LOW) #LED is switched on GPIO.output(LED_Blue,GPIO.LOW) #LED is switched on GPIO.output(LED_Green,GPIO.LOW) #LED is switched on GPIO.output(LED_Red,GPIO.HIGH) #LED is turned on tup(LED_Blue, GPIO.OUT, initial= GPIO.LOW) tup(LED_Green, GPIO.OUT, initial= GPIO.LOW) tup(LED_Red, GPIO.OUT, initial= GPIO.LOW) # Here the output pin is declared, to which the LEDs are connected. This code example shows how the integrated LEDs can be changed alternately, every 3 seconds, by means of a definable output pin. Pin assignment Code example Raspberry Pi Pin assignment Raspberry Pi: Raspberry Pi In the second for-loop the color gradient will be processed backwards brightness levels of the two integrated LEDs, different colors are created This creates a color gradient in which the mixing of different Within a For loop, different PWM values are passed to the three LEDs.

More information on this topic can be found in this article by Analog IC Tips. Due to the inertia of human vision, human eyes interpret such on/off behavior as a change in brightness. Pulse width modulation can be used to regulate the brightness of an LED - in this process, the LED is switched on and off at specific time intervals, with the ratio of the switch-on and switch-off times corresponding to a relative brightness. KY009-Arduino-ON-OFF.zip Code example PWM int Led_Red = 10 ĭigitalWrite (Led_Red, HIGH) // LED is switched onĭigitalWrite (Led_Green, LOW) // LED is switched onĭigitalWrite (Led_Blue, LOW) // LED is switched onĭigitalWrite (Led_Red, LOW) // LED is switched onĭigitalWrite (Led_Green, HIGH) // LED is switched onĭelay (3000) // Waiting mode for another three seconds in which the LEDs are then switched overĭigitalWrite (Led_Blue, HIGH) // LED is switched onĭelay (3000) // Wait mode for another three seconds in which the LEDs are then switched over Pin assignment Code example Arduino Pin assignment Arduino: Arduino

#Arduino rgb led test series#

Technical dataĭepending on the input voltage, series resistors are required. These are connected to each other by means of a common cathode. LED module which contains a red, blue and green LED.