Omron D6T-44L-06 test application

Testing the sensor with openFrameworks on the Raspberry Pi. This should display a 4x4 grid with colored rectangles.

I used I2C C functions by Scott Ellis (I hope that's him, correct me if I'm wrong) and a C++ class for Omron D6T sensors by JoMu (someone from the Raspberry Pi forum). A zip file can be found in the following link.

I was using openFrameworks 0.8.0, but it should work with 0.8.1 as well. So the first thing to have for this example to work is a working copy of openFrameworks on your Raspberry Pi.

How to compile and run

To compile, log in to your Raspberry Pi and navigate to the apps directory of your openFrameworks installation. If you've followed the instructions on the openFrameworks website, the address of your installation is /home/pi/openFrameworks. Navigate to the apps directory:

cd /home/pi/openFrameworks/apps

Press enter. If you issue ls and press enter, you will see the app categories there. By default there will be one category myApps. Change directory to it:

cd myApps

Hit enter and you are there. Make sure that your Pi has internet connection and git installed. If not, find a way to connect to the net and install git like this:

sudo apt-get install git

Next step is to clone this repository. Enter the following in the Pi shell:

git clone https://github.com/kr15h/omron-d6t-44l-06-rpi-of-test.git

This will make a new directory in the apps folder with the name omron-d6t-44l-06-rpi-of-test.

Navigate inside the newly created directory:

cd omron-d6t-44l-06-rpi-of-test

You will need the oF Makefile to be able to compile the example. Assuming that you are in the omron-d6t-44l-06-rpi-of-test directory, copy it from the default emptyExample like this:

cp /home/pi/openFrameworks/apps/myApps/emptyExample/Makefile ./

Issue make && make run to compile and run the example. Your sensor should be connected by then.

Dependencies

Before you compile and connect the sensor, you should set up your Pi for using the I2C port. Refer to this guide to do that.

I think that you will need to install the i2c-dev package as well with:

sudo apt-get install i2c-dev

Hardware

I used the Bi-Directional Logic Level Converter from Sparkfun to transform the 5V I2C signals that the sensor uses to 3.3V of the Raspberry Pi.

You can find all the necessary information about the Omron human presence detection sensor (including pin layouts) here.

Have fun!