raspberry-sensors-pi4j

Raspberry Pi - Joy-It SensorKit X40 - Pi4J Sensor implementation

Install Java sdk

sudo apt-get update 
sudo apt-get install oracle-java8-jdk

Install wiring Pi native library

Install WiringPi Native library Wiring Pi download and install

sudo apt-get update 
sudo apt-get install git
mkdir wiringPiSource
cd wiringPiSource
git clone git://git.drogon.net/wiringPi
cd wiringPi
build

test if install was successful

gpio -v
# or
gpio readall

Turn on I2C on Raspberry

1. Run sudo raspi-config.
2. Use the down arrow to select 5 Interfacing Options
3. Arrow down to P5 I2C.
4. Select yes when it asks you to enable I2C
5. Also select yes if it asks about automatically loading the kernel module.
6. Use the right arrow to select the button.
7. Select yes when it asks to reboot.

Install Pi4J Library

Please check pi4j compatibility list here Wiring PI Homepage

This will install Version 1.1 -> for Model Raspberry PI 1, 2 and 3 (exclusive B+)

curl -s get.pi4j.com | sudo bash

Install Pi4J Library -> Raspberry PI 1.2 Snapshot -> use for Raspberry pi 3 B+

mkdir pi4j && cd pi4j
wget http://get.pi4j.com/download/pi4j-1.2-SNAPSHOT.deb
sudo dpkg -i pi4j-1.2-SNAPSHOT.deb
pi4j -version

Compile and run Software

cd ../raspberry-sensors-pi4j/src/
javac -classpath .:/opt/pi4j/lib/* -d . ./at/schinivision/Pi4jsensors.java
sudo java -classpath .:classes:/opt/pi4j/lib/'*' at.schinivision.Pi4jsensors

Schematic

Raspberry Pi 3B+ Pinout