March 2017
Beginner to intermediate
422 pages
8h 4m
English
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Controlling a buzzer with an RPZ
We've done a lot with light, but what about sound? The RPZ can run a simple buzzer with ease.
Getting ready
All you will need here is a piezo buzzer, which is a commonly available electronic component.
How to do it...
- The piezo buzzer circuit is about as simple as it gets. There are only two leads: one is assigned to a GPIO port, and the other to ground. We can use PWM to adjust the frequency.
- The code is simple too. The following is the code to run a buzzer test from 0 to 1 MHz and back down. Enter the code and run it as
piezo.py:#!/usr/bin/env python # Raspberry Pi Zero Cookbook # Chapter 6 - Piezo Buzzer ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.