Using an LCD on the Edison

Contributors: Shawn Hymel
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Install the ILI9341 Module

NOTE: At the time of this writing, the ILI9341 module is included in UPM but not as part of the Edison image. As a result, we will need to build UPM from source. If, in the future, it is included in the default Edison image, you can skip this section.

Flash and Configure the Edison

If this is your first time using the Edison, it is recommended that you update to the latest firmware and connect to WiFi.

Build MRAA

MRAA is Intel's set of libraries used to control the low-level hardware. Because UPM relies on MRAA, we need to install it first.

Connect to the Edison over Serial or SSH. Once logged in, enter the following commands to download MRAA:

mv mraa-master mraa

Then, build MRAA with:

cd mraa
mkdir build
cd build
cmake ..

Install the newly built libraries, and update the pkg-config path, which is needed by UPM.

make install
export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig

Build ili9341 in UPM

Next, we need to download the latest version of UPM and install the ili9341 module. Download UPM with:

cd ~
mv upm-master upm

Prepare to build:

cd upm
mkdir build
cd build
cmake ..

Build and install the ili9341 module:

make ili9341
cd src/ili9341
make install

And that's it! We'll use this installed library to make an example program that draws some basic shapes on the LCD. Choose whether you want to write the example program in C++, JavaScript, or Python, and skip to that section below.

NOTE: Each of the C++, JavaScript, and Python examples can be found in ~/upm/examples.