Comments (3)
FDelporte
commented on July 3, 2024
Pi4J is indeed shifting to a "core" approach, providing all generic GPIO functions, but no longer including specific chip or board support. This will make it easier to further maintain and extend the project.
In the CrowPi example project, specific chip support has been worked out as an example alternative approach: https://github.com/Pi4J/pi4j-example-crowpi/tree/b4ad9cdf6607c5ef58068d961067144e945a4c67/src/main/java/com/pi4j/crowpi/components/internal
from pi4j-v1.
Sciss
commented on July 3, 2024
So if I move from 1.3 to 1.4 - because apparently internal sun API is used in 1.3 that doesn't work with OpenJDK 11 - I should be able to compile those extension classes for the PCA9685 from source against 1.4, or has the entire API changed?
from pi4j-v1.
Sciss
commented on July 3, 2024
Yes this approach works (1.4 / OpenJDK 11 / sources of extensions for PCA9685). I get an NPE somewhere in the extensions after clean-up, but set servo positions seems to work.
from pi4j-v1.
Related Issues (20)
- 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
- NoClassDefFoundError com/pi4j/io/gpio/gpiofactory HOT 5
- 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"
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