LED controller Spring Boot service for Raspberry Pi with UPnP support
My daughter has a firefly LED string that was battery operated. She got it from the Dollar Tree store. She loves it and uses it as a nightlight. I have a couple of Google Homes around and SmartThings in the house. When she says good night to Google her room is set for the night. Ceiling light off, bedside lamp on. But this little battery operated thing I always had to turn on and off myself.
Since it was running on 2 AA batteries it's perfect for the Pi's 3.3V output.
I used a Raspberry Pi 0 W. I attached the LED String to pins 6 (GND) and 12 (GPIO 1 in Pi4J). I added a little tactile button to pins 14 (GND) and 18 (GPIO 5). I ordered some resistors from the Internet, but it didn't arrive yet. So the button is not that usable yet. The reading is very noisy, but it works most of the time.
Here's the RPi Zero's Pinout (from Pi4J's website)
You'll need:
-
Java 8 Development Kit
sudo apt-get update && sudo apt-get install oracle-java8-jdk -
Maven
sudo apt-get install maven
After this it's just java -jar target/raspberrypi.ledcontroller-0.0.1-SNAPSHOT.jar.
If you want to make it start up when the Pi boots up, then sudo nano /etc/rc.local and add java -jar target/raspberrypi.ledcontroller-0.0.1-SNAPSHOT.jar & above the last line (which is exit 0).
If you wan't to make any changes to the setup you can override any values in the application.properties at startup. I.e. java -jar -Dserver.port=9999 ... For settings that are not in the properties file, check out Spring Boot's reference page about common properties.
If you want to use this with SmartThings, check out my other repository with the SmartApp and Device Handler for this thing