December 2015
Beginner to intermediate
650 pages
18h 28m
English
book
Embedded Computing and Mechatronics with the PIC32 Microcontroller
by Kevin Lynch, Nicholas Marchuk, Matthew Elwin
Content preview from Embedded Computing and Mechatronics with the PIC32 Microcontroller
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Chapter 24
Feedback Control of LED Brightness
Abstract
This project-based chapter directs the reader to develop a PI feedback controller to control the brightness of an LED using a low-pass-filtered phototransistor light sensor for feedback. This project makes use of PWM to pulse the LED, analog input for the sensor feedback, a counter/timer for the fixed-frequency control loop, the parallel master port to print to an LCD screen, and a UART for communication with the host computer. The project includes a simple interface in MATLAB on the host computer that allows the user to enter PI gains, plot the step response of the controller, and iterate to manually tune the PI gains. This project exercises the reader’s skills in several areas of embedded ...
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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.