You must first complete Looping Through Sounds before viewing this Lesson
Integrating NeoPixel
Introduction
Now that we have our looping buzzer, it’s now time to add the NeoPixel to the mix to complete our police siren.
Components Needed
- Little Python Brain
- A tablet/phone/laptop
Steps
1
Setting up the NeoPixel
Since we’ll be using the NeoPixel, we just need to add the import neopixel and the neopixel setup blocks from the Libraries and Setup categories respectively.
2
Setting red and blue
As for setting the colors, simply drag two change color blocks and np.write() blocks. Set one to red and one to blue.
3
Combining light and sound
Since we now know that the Note and Rest Durations in the bz.playNote blocks have a sleep function (see Playing a Beep for more info), we can just combine this with the NeoPixel blocks with no added sleep() blocks!
The Complete Code
