Robo4J-rpi-lcd-example
Robo4J RasbpberryPi LCD Demo example
Example using Robo4J to send messages between the buttons and LCD in an Adafruit 2x16 LCD shield.
The LCD can also be controlled using REST.
The internal sever is accessible on port 8025 and supports POST requests (no authentication required).
Example: <ROBO4J_IP>:8025
POST request: { "commands" : [ {"name" : "up", "target" : "lcd" } ] }
Building from Source
The Robo4j framework uses Gradle to build. The easiest way is to simply build a fat jar.
./gradlew :fatJarRunning
The built fat jar can simply be run with java -jar. Just make sure you have all the required libraries on the path. The example can be run on all platforms where Swing is available by setting the system property com.robo4j.hw.rpi.i2c.adafruitlcd.mock to true.
For example:
java -Dcom.robo4j.hw.rpi.i2c.adafruitlcd.mock=true -jar build/libs/robo4j-rpi-lcd-example-0.5-SNAPSHOT.jarOr, on a Raspberry Pi with the necessary hardware connected:
java -cp $ROBO4J_PATH:build/libs/robo4j-rpi-lcd-example-0.5-SNAPSHOT.jar com.robo4j.rpi.lcd.example.LcdExampleMainThe easiest way to run the example is to create the fatJar and run it.
Requirements
- Java JDK 8
- Robo4j.io, version alpha-0.3
Staying in Touch
The official twitter account:
Author's twitter accounts:
The official blog:
Author's blogs:
License
The Robo4j.io Framework is released under version 3.0 of the General Public License.