Welcome to our home automation hacks series #2, today I am going to show you how to hack your home outlets with Arduino and a phone gesture 😉 .This time I used Accelerometer sensor shield from 1Sheeld application. And with a simple gesture it will open\close the outlet to trigger the fan on or off according to it’s last state. So let’s start with
These are the components we need, so we will test the system first before hacking our real home plug.
1- Arduino Uno
3- Relay board
4- Wired outlet
5- Female to Male jumpers
6- USB cable
8- Screw driver
1- So we got the wired outlet to simulate and test the process of controlling devices (which is a fan in our case). It comes with two wire lines, at first we gonna cut one of these wires and strip the ends to wire them to our relay board on ports (Common and Normally open).
2- Then connect the relay board to the 1Sheeld&Arduino on Vcc, GND & pin13 for the signal line.
Here’s the full working code. The code uses the Accelerometer sensor library provided with the 1Sheeld library to control pin13 (which already connected to the relay signal pin) and with a simple gesture by shaking off the phone it will trigger the fan on/off.
1- Now plug your arduino to your PC/Laptop and upload the code (make sure first to put your 1Sheeld to uploading mode preventing errors).
2- Open 1Sheeld application and connect to 1Sheeld board.
3- Now switch back the 1Sheeld to “Operating mode”.
4- Choose Accelerometer sensor shield, and check the Linear acceleration option from the check box.
5- Now shake the phone to turn on/off the fan.
The same as before in #1 hack, I have an already designed 3D case to hold my electronic parts together, you can check it out and download the files from Here, and as usual feel free to design your own 3D cases for your extra electronic parts 🙂 .
1- After testing we gonna wire thing on a real home outlet, but before touching or unscrewing anything, cut the power off the outlet (as stated before) and do the job.
2- Now unscrew the outlet face cover and reach in to one of the wire lines, cut&strip it the same way we did in testing.
3- Connect the two stripped ends to the relay board.
4- Power up the system with a 12V DC adapter or with a 9V battery.
5- Return the power back to the outlet, then open the application, connect and open the accelerometer sensor shield.
6- Now Plug in the fan and make sure it’s opened and shake the phone to enjoy the hack.
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