April 2017
Intermediate to advanced
268 pages
5h 36m
English
Content preview from ESP8266 Internet of Things CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Automated light control
In this recipe, we will look at automated light control using M2M. We will work on a project that will turn a light source on or off, depending on the light intensity of the surrounding environment. Two ESP8266 boards will be used to accomplish this. One of them will have a light dependent resistor, and the other will have a relay connected to it.
Getting ready
You will need the following hardware components:
- ESP8266 board
- USB cable
- Light dependent resistor (LDR) (https://www.sparkfun.com/products/9088)
- 10 kΩ resistor
- Relay module (http://www.dx.com/p/arduino-5v-relay-module-blue-black-121354)
- Breadboard
- Jumper wires
Connect the analog input of the ESP8266 board to an LDR connected to a 10 kΩ resistor in a voltage divider circuit, ...
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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.