Comments (5)
I see in the pom you are using pi4j version 1.2. For the Raspberry Pi 4, please use version 1.3 or 1.4.
You will also need to update WiringPi to be able to access the GPIOs in the right way.
For full description, see https://pi4j.com/1.4/install.html
sudo pi4j --wiringpi
from pi4j-v1.
i have istall a new Linux on the pi,
have install the pi4j with the command from the webside.
i have install the new wiringpi with you Command.
Update the Version of the dependencies in the pom to 1.4
the Native and device i have deleted.
i still have still the same problem.
from pi4j-v1.
did you run the program with sudo
?
if it would be possible to upload your full project to github I can maybe take a look if I can spot the problem...
from pi4j-v1.
i have start the Program with sudo java -jar tractor-1.0-SNAPSHOT.jar
i have start the GpioTest.java, it runs without an error.
i have try to upload the code and hope you can see it https://github.com/RobinQuante/AutoDriving/tree/main/AutoDrivingTractor
from pi4j-v1.
Hey Robin, I've taken a look at your project. Please find attached an updated version.
Nice work BTW with the Swing. If you ever want to move to JavaFX, check https://pi4j.com/getting-started/user-interface-with-javafx/ for more info.
Some of the changes:
- For a correct maven project, the files are moved into a subdirectory
- Package names should be lower case (InOut > inout)
- pom.xml
- bumped to Java 11 as this is now default on Raspberry Pi OS and for Pi4J V1.4
- modified the build plugins
- build your project with
mvn package
- run with
sudo java -jar target/AutoDrivingTractor-1.0-SNAPSHOT-jar-with-dependencies.jar
- there is still an error with GPIO 17 being used twice, but I leave that one to you to fix ;-)
sudo java -jar target/AutoDrivingTractor-1.0-SNAPSHOT-jar-with-dependencies.jar
Exception in thread "main" com.pi4j.io.gpio.exception.GpioPinExistsException: This GPIO pin already exists: GPIO 17
at com.pi4j.io.gpio.impl.GpioControllerImpl.provisionPin(GpioControllerImpl.java:554)
at com.pi4j.io.gpio.impl.GpioControllerImpl.provisionPin(GpioControllerImpl.java:538)
at com.pi4j.io.gpio.impl.GpioControllerImpl.provisionDigitalInputPin(GpioControllerImpl.java:642)
at com.pi4j.io.gpio.impl.GpioControllerImpl.provisionDigitalInputPin(GpioControllerImpl.java:670)
at com.pi4j.io.gpio.impl.GpioControllerImpl.provisionDigitalInputPin(GpioControllerImpl.java:664)
at com.pi4j.io.gpio.impl.GpioControllerImpl.provisionDigitalInputPin(GpioControllerImpl.java:687)
at autodrivingtractor.RotationSpeed.<init>(RotationSpeed.java:21)
at autodrivingtractor.Main.main(Main.java:13)
from pi4j-v1.
Related Issues (20)
- Where is the PCA9685 code? HOT 3
- Published artifacts have class file version incompatible with JDK 8
- Parity bit is not sent with 1.4 on serial0 rpi4 HOT 1
- Computer Module 4 IO board Pinout issue
- PCA9685 servo question: setAlwaysOff sometimes makes the servo jump to zero position HOT 3
- Could be posible to manage Baud of 5800 on Serial0
- Not able to use spi in emteria.os
- Serial Port won't open HOT 5
- Can I use this library for other boards? HOT 2
- dependency on javax.xml.bind makes it impossible to jlink on JDK 11 HOT 3
- Question - change pinMode of GpioPinDigitalMultipurpose HOT 1
- [Question] serial control signals physical pins HOT 2
- J8 pin Different HOT 1
- PCIe x1 connector HOT 3
- Sorry, not something I can answer as the Pi4J project doesn't provide PCIE access.
- Serial buffer waits 100ms before letting me "read()" the bytes
- problem with openhab on pi4: not handling mcp23017 HOT 1
- vcgencmd is in /usr/bin on some systems - can you check this if /opt/vc.... isn't there
- Cannot run program "/opt/vc/bin/vcgencmd"
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from pi4j-v1.