tPixelColor(5, 128, 0, 0 ) // LED 5 half red Now, to turn on LED nr 3 in the neopixel string with color white on full brightness (R=255, G=255, B=255) and LED nr 5 with half bright red (R=128), we use these instructions: tPixelColor(3, 255, 255, 255) // LED 3 full white It will now be downloaded and installed fully automatic.Īfter the library is installed, we can include the library in our code and then we create an instance of Adafruit_NeoPixel, which I chose to give the name neopixel: #include Īdafruit_NeoPixel neopixel = Adafruit_NeoPixel(NUMLEDS, LEDS_PIN, NEO_GRB + NEO_KHZ800) Once there, do a search for neopixel and from the list of results select Adafruit Neopixel and click ‘Install’. The easiest way to do this is via the menu: Sketch > Include Library > Manage Libraries. The Adafruit Neopixel library is not standard available, it needs to be downloaded and installed. With say 96 steps, we then have a multiple minutes day / night cycle. For a police car flash light the interval time will be around 50 ms, but when we light houses we can make the interval time multiple seconds. For the software we can use the step sequencer we made in the previous video, where we add the Adafruit Neopixel library and then add an RGB color per LED.
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