MATRIX HAL Setup Raspberry Pi and Demo Scripts

What is MATRIX HAL?

HAL or Hardware Abstraction Layer is the lowest level layer of the MATRIX Creator drivers. You can either interact directly with HAL, or use the higher level components like MALOS or the MATRIX OS to tinker with the MATRIX Device. This uses C++ drivers for available sensors and hardware.

Things Needed

Raspberry Pi
Matrix Device
Micro SD Card
Active Internet Connection
A Power Adapter ( Min 2.3 Amp)
Camera (Optional)

Step 1 : Setting Up Raspberry Pi

Download and burn latest Raspbian image to a micro SD card and insert it into the raspberry Pi.

Now power it up with a power adapter that can provide at least 2.5 Ampere. Now fire up your terminal and create a password for the user ‘pi’ by executing the command

sudo passwd pi

Connect your Raspberry Pi to a WiFi router or Wired network and make sure it is connected by checking whether it is getting an IP address from the switch.

Now perform and update and upgrade by running

sudo apt update -ysudo apt upgrade -y

Step 2 : Connect MATRIX Device to Raspberry Pi

Now simply align the header pins and slowly connect the MATRIX device to your Raspberry Pi

Step 3 : Adding the key and repository

curl https://apt.matrix.one/doc/apt-key.gpg | sudo apt-key add -

echo "deb https://apt.matrix.one/raspbian $(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/matrixlabs.list

Step 4 : Perform Update and Upgrade

sudo apt-get update

sudo apt-get upgrade

Step 5 : Installing the MATRIX Software

sudo apt-get install matrixio-creator-init

sudo reboot

Step 6 : Setting Up HAL

Install Required Packages

sudo apt-get install git cmake g++ libfftw3-dev wiringpi libgflags-dev

Step 7 : Download HAL

git clone https://github.com/matrix-io/matrix-creator-hal.git

Step 8 : Build

cd matrix-creator-hal/

mkdir build

cd build/

cmake ..

make -j4

Running the Demos

Now from the build folder, go to the folder demo

cd demos/

From there, you can choose any demo script and run it

./arc_demo

./mic_energy

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