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jchar...@gmail.com
1/31/21
Pi4J SPI Connecting to ST7735S LCD (Pimoroni PIM436 Breakout Board)
Greetings to the group from Columbus, Ohio! I am working on a Java driver to control the PIM436
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Pi4J SPI Connecting to ST7735S LCD (Pimoroni PIM436 Breakout Board)
Greetings to the group from Columbus, Ohio! I am working on a Java driver to control the PIM436
1/31/21
frank.d...@gmail.com
1/29/21
Pi4J V1.3 has been released
Hello Big news! Pi4J V1.3 has been released! This is the final version for Java 8 with full support
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Pi4J V1.3 has been released
Hello Big news! Pi4J V1.3 has been released! This is the final version for Java 8 with full support
1/29/21
Nigel MacLeod
1/4/21
GPIO Interrupts
Is there a list of those pins which process interrupts on a Pi4B? I have spent ages trying pins, but
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GPIO Interrupts
Is there a list of those pins which process interrupts on a Pi4B? I have spent ages trying pins, but
1/4/21
Stefan Schildbach
, …
Emmanuel Niati
18
10/28/20
Q&A
What is the difference between com.pi4j.io.spi.SpiDevice and "manual" SPI? (ILI9341 LCD Display)
Happy to have rejoined pi4j ! Is there an ultimate soluce witch works ? I tried some classes from
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pi4j
spi
Q&A
What is the difference between com.pi4j.io.spi.SpiDevice and "manual" SPI? (ILI9341 LCD Display)
Happy to have rejoined pi4j ! Is there an ultimate soluce witch works ? I tried some classes from
10/28/20
greg....@gmail.com
9/25/20
WiringPi 2.52 and Pi4J 1.2
I am using this combination on a Pi3B+. GPIO seems to work fine. Serial communication to an Arduino
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WiringPi 2.52 and Pi4J 1.2
I am using this combination on a Pi3B+. GPIO seems to work fine. Serial communication to an Arduino
9/25/20
Thomas Manz
, …
Robert Savage
5
8/28/20
Pi4J v2 and I2C
As far as the explicit assignment to the I2C provider .... a similar issue was reported here: https:/
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Pi4J v2 and I2C
As far as the explicit assignment to the I2C provider .... a similar issue was reported here: https:/
8/28/20
Rudolf Ziegaus
8/26/20
Problems with interrupts in pi4j
Hello, I have problems using interrupts in pi4j. I want to develop a library for a Wiegand Reader and
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Problems with interrupts in pi4j
Hello, I have problems using interrupts in pi4j. I want to develop a library for a Wiegand Reader and
8/26/20
John Gaby
, …
GeertVc
8
8/12/20
Q&A
Serial port on raspberry pi 4 not working.
You're welcome and glad to hear you have your system up and running again on an RPi3B. One thing
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Q&A
Serial port on raspberry pi 4 not working.
You're welcome and glad to hear you have your system up and running again on an RPi3B. One thing
8/12/20
GeertVc
, …
Daniel Mårtensson
4
8/3/20
New topology of Pi4J repo: what about device and gpio-extension?
@Frank: I personally wouldn't go for pi4j-example-devices or the like because the current (at
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New topology of Pi4J repo: what about device and gpio-extension?
@Frank: I personally wouldn't go for pi4j-example-devices or the like because the current (at
8/3/20
GeertVc
8/2/20
NetBeans 12 + Pi4J 1.4: testscripts fail
Today, I wanted to compile Pi4J branch develop/1.4, so I cloned the latest state of the Pi4J repo on
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NetBeans 12 + Pi4J 1.4: testscripts fail
Today, I wanted to compile Pi4J branch develop/1.4, so I cloned the latest state of the Pi4J repo on
8/2/20
Carlo Divita
7/28/20
i2C RuntimeException
Hi guys, I have sometime this Runtime error: java.lang.RuntimeException: Could not obtain an access-
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i2C RuntimeException
Hi guys, I have sometime this Runtime error: java.lang.RuntimeException: Could not obtain an access-
7/28/20
MarkyMark
, …
Andrew Chandler
7
7/20/20
Q&A
Raspberry Pi 4 Support
hmm ok - examples are wonderful but I was thinking more along the library of implementations for
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Q&A
Raspberry Pi 4 Support
hmm ok - examples are wonderful but I was thinking more along the library of implementations for
7/20/20
Daniel Mårtensson
7/17/20
Q&A
New project with Pi4J 2.0 and Raspberry Pi 4 - Testing
Hi! I have built a logging software where you can both measure and control. You store the
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Q&A
New project with Pi4J 2.0 and Raspberry Pi 4 - Testing
Hi! I have built a logging software where you can both measure and control. You store the
7/17/20
Carlo Divita
,
Frank Delporte
3
7/17/20
Pi4J Serial data receive problem
thanks for sharing the solution! On Thursday, July 16, 2020 at 6:36:51 PM UTC+2, Carlo Divita wrote:
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Pi4J Serial data receive problem
thanks for sharing the solution! On Thursday, July 16, 2020 at 6:36:51 PM UTC+2, Carlo Divita wrote:
7/17/20
DPI
,
Frank Delporte
2
7/15/20
Q&A
PI4
V1 supports Pi4 if you upgrade WiringPi to version 2.52 $ gpio -v gpio version: 2.50 $ cd /tmp $ wget
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Q&A
PI4
V1 supports Pi4 if you upgrade WiringPi to version 2.52 $ gpio -v gpio version: 2.50 $ cd /tmp $ wget
7/15/20
Daniel Mårtensson
, …
Frank Delporte
13
7/9/20
Q&A
Manual how to get started with Pi4j 2.0
I understand! Better to build a strong Pi4J instead of supporting other peripherals. I think it
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Q&A
Manual how to get started with Pi4j 2.0
I understand! Better to build a strong Pi4J instead of supporting other peripherals. I think it
7/9/20
Chris Wolcott
, …
Jim Darby
4
7/9/20
Q&A
What is LibPins?
Hi Chris, One of the issues with the DHT11 is its fussy timing requirements. You can use the checksum
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Q&A
What is LibPins?
Hi Chris, One of the issues with the DHT11 is its fussy timing requirements. You can use the checksum
7/9/20
Jayadatta Vallabhaneni
, …
Frank Delporte
8
7/5/20
VL53L0X
Hello, nice to follow this conversation and see that it fits in the new approach of the in-progress
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VL53L0X
Hello, nice to follow this conversation and see that it fits in the new approach of the in-progress
7/5/20
Chris Wolcott
6/30/20
Q&A
Any examples of accessing CANBUS and/or using it for NMEA2000
I'm trying my hand at making a CANBUS interface for my RaspberryPi 0WH with RaspiOS (Buster).
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Q&A
Any examples of accessing CANBUS and/or using it for NMEA2000
I'm trying my hand at making a CANBUS interface for my RaspberryPi 0WH with RaspiOS (Buster).
6/30/20
Daniel Mårtensson
,
Frank Delporte
2
6/25/20
Q&A
PWM outputs and its frequency for Pi4J V1.3 on Raspberry Pi 4
hi, without knowing the details myself (yet ;-))... As Pi4J V2 uses PiGpio for the actual I/O
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Q&A
PWM outputs and its frequency for Pi4J V1.3 on Raspberry Pi 4
hi, without knowing the details myself (yet ;-))... As Pi4J V2 uses PiGpio for the actual I/O
6/25/20
PV Subramanian
6/23/20
Q&A
pi4j 1.0 to 1.2 transition -- write not working anymore
Hello: My pi4j 1.0 based code works fine. Upon migrating to pi4j 1.2 Serial.writeln() to "/dev/
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Q&A
pi4j 1.0 to 1.2 transition -- write not working anymore
Hello: My pi4j 1.0 based code works fine. Upon migrating to pi4j 1.2 Serial.writeln() to "/dev/
6/23/20
PV Subramanian
6/12/20
Q&A
Upgrading from 1.0 (SerialDataListener) to 1.2 (SerialDataEventListener)
Hello: Between 1.0 and 1.2 SerialDataListener changed to SerialDataEventListener How has everyone
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Q&A
Upgrading from 1.0 (SerialDataListener) to 1.2 (SerialDataEventListener)
Hello: Between 1.0 and 1.2 SerialDataListener changed to SerialDataEventListener How has everyone
6/12/20
Daniel Mårtensson
, …
Robert Savage
8
6/11/20
Q&A
When will the latest version of Pi4J be released?
Great! I will try pi4j-core-2.0-20200611.181858-9.jar with Raspberry Pi 4B and see how it's
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Q&A
When will the latest version of Pi4J be released?
Great! I will try pi4j-core-2.0-20200611.181858-9.jar with Raspberry Pi 4B and see how it's
6/11/20
Hamid Moazed
, …
Frank Delporte
9
5/29/20
Q&A
Is Pi4J still in active development?
Hi Daniel, working on it! :-) Greetings Frank On Thursday, May 21, 2020 at 8:01:55 PM UTC+2, Daniel
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Q&A
Is Pi4J still in active development?
Hi Daniel, working on it! :-) Greetings Frank On Thursday, May 21, 2020 at 8:01:55 PM UTC+2, Daniel
5/29/20
Joël Kwan
5/3/20
Q&A
Wiring pi Configuration
Hi, I am trying to use pi4j in my project. I own an old Odroid C1+ and I have installed wiringpi and
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Q&A
Wiring pi Configuration
Hi, I am trying to use pi4j in my project. I own an old Odroid C1+ and I have installed wiringpi and
5/3/20
Aness
4/21/20
Q&A
Save image from byte array returned by Raspberry Pi UART Camera
I'm not sure if cross posting questions is allowed, but I thought that I might have more luck
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java
serial
uart
Q&A
Save image from byte array returned by Raspberry Pi UART Camera
I'm not sure if cross posting questions is allowed, but I thought that I might have more luck
4/21/20
Arpit Agrawal
4/2/20
Q&A
Conducting a revolutionary experiment. Looking for volunteers
Dear Members, Thank you for taking the time to check this post out! I am the Product Manager of a
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raspberrypi
Q&A
Conducting a revolutionary experiment. Looking for volunteers
Dear Members, Thank you for taking the time to check this post out! I am the Product Manager of a
4/2/20
Sławomir Korman
4/1/20
Q&A
PI4J in Struts2 Action
Hi, I liked mych PI4J I have a question regaring usung PI4J in Struts2 Web framework. I wanted to add
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java
raspberrypi
Q&A
PI4J in Struts2 Action
Hi, I liked mych PI4J I have a question regaring usung PI4J in Struts2 Web framework. I wanted to add
4/1/20
Vladimir Frolov
2
3/23/20
Q&A
Blinking led on raspberry pi zero w
I found issuer. I missmached pin numbers. Correct pin enumeration is on this page: https://pi4j.com/
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Q&A
Blinking led on raspberry pi zero w
I found issuer. I missmached pin numbers. Correct pin enumeration is on this page: https://pi4j.com/
3/23/20
Bryce Renninger
, …
Frank Delporte
4
2/24/20
Q&A
Backlight on LCD
I've used an LCD 16*2rows 1602A-module for my book https://leanpub.com/
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Q&A
Backlight on LCD
I've used an LCD 16*2rows 1602A-module for my book https://leanpub.com/
2/24/20