Arduino Basics

  Description Using the HMC5883L magnetometer sensor of the GY-80 module from ICStation to monitor a garage door and notify when it has been opened or closed. The Cayenne service provides much of the monitoring and notifying functionality. A major feature of this project. Cayenne takes care of all of the complicated work behind the scenes, making it easy to connect your Arduino to the cloud and allow you to monitor your garage from virtually anywhere.   This project was created specifically to monitor a garage, but you will soon discover that this project could be used to monitor a whole host of other things. Monitor your front door, your back door, your bag, your chair, your cookie jar.   Monitor for peace of mind, or catch someone in the act of stealing your stuff. This project has got you covered. Let's see how:   Part...

Description In this tutorial, I will show you how to configure and extract data from the magnetometer (HMC5883L) sensor on the GY-80 10DOF module from ICStation. While there are some very good libraries on the internet which will give you full access to this sensor, I will show you what you need to know without using a library. This means that it may get a bit technical at times, but I will hold your hand along the way and provide explanations as required. I would also recommend that you watch the complete video from start to finish - as the video provides really useful information.   Parts Required: Arduino UNO (or compatible board) GY-80 10DOF Module HMC5883L Magnetometer Datasheet: You can find the datasheet for the HMC5883L pretty easily by searching on the internet. Here are a couple of sources: ...