August 2017
Beginner
272 pages
5h 34m
English
Content preview from Arduino Project Handbook, Volume II
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7NeoPixel Compass
In this chapter we’ll use a three-axis sensor and an RGB LED ring to create a compass that indicates north by lighting the LEDs in that direction.
PARTS REQUIRED
Arduino board
Jumper wires
HMC5883L three-axis sensor
Adafruit NeoPixel ring with 16 RGB LEDs
9V battery pack with 6 AA batteries
LIBRARIES REQUIRED
Wire
FastLED
HMC5883L
HOW IT WORKS
The HMC5883L three-axis sensor (Figure 7-1) is a multichip module that senses magnetic force. The module measures both the direction and the magnitude of Earth’s magnetic fields. We will ...
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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.