March 2017
Beginner to intermediate
422 pages
8h 4m
English
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Interfacing an LDO with the RPZ
Analog resistance isn't the only thing you can calculate with the Raspberry Pi Zero GPIO. You can also capture the voltage levels from something like a low dropout voltage regulator. These regulators will work even when the input voltage is very close to the output voltage. By reading the sensor, we can read values of things such as rechargeable battery packs.
Getting ready
We can demonstrate this concept with only a variable resistor and a 1 uF capacitor. I used the 10K variable resistor included in the Elego kit.
How to do it...
- With the following circuit, we can control the voltage divider from the 3.3 volt Raspberry Pi Zero output and read its value. As you can see, it is just like the previous recipe on resistive ...
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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.