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Ronnie76
, …
Andrew Chandler
4
7/14/19
Q&A
error: unreported exception UnsupportedBusNumberException; must be caught or declared to be thrown
Oh that is awesome news Geert!
unread,
MCP23017
gpio
i2c
java
pi4j
raspberrypi
rpi
Q&A
error: unreported exception UnsupportedBusNumberException; must be caught or declared to be thrown
Oh that is awesome news Geert!
7/14/19
Anders Wallén
,
Thomas Aarts
2
3/14/18
Q&A
Using an I2C splitter with Pi4J
Until I have time to wire up one of these and supply code that I KNOW works. Pull down a PCA9544A pdf
unread,
i2c
Q&A
Using an I2C splitter with Pi4J
Until I have time to wire up one of these and supply code that I KNOW works. Pull down a PCA9544A pdf
3/14/18
Tom Moyer
2/9/18
Scala Java maven project in ScalaIDE Eclipse workspace with demo code for MMA8451 in both languages
Have started a project involving the Raspberry Pi and prefer to program in Scala. Was able to port
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gpio
i2c
java
pi4j
raspberrypi
Scala Java maven project in ScalaIDE Eclipse workspace with demo code for MMA8451 in both languages
Have started a project involving the Raspberry Pi and prefer to program in Scala. Was able to port
2/9/18
dwa...@millersoftwaresolutions.com
12/24/17
Q&A
pi4j and MCP23017 - reading and writing device registers
I have connected an Adafruit 16x2 plate that uses the MCP23017 expander to control a 16x2 LCD display
unread,
MCP23017
gpio
i2c
java
pi4j
Q&A
pi4j and MCP23017 - reading and writing device registers
I have connected an Adafruit 16x2 plate that uses the MCP23017 expander to control a 16x2 LCD display
12/24/17
jiris...@googlemail.com
9/1/17
Q&A
problem with the I2C multiplexer PCA9544D and Pi4J
Hello, I have connected an I2C multiplexer (PCA9544D) to address 0x70 of the I2C bus. With the
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i2c
Q&A
problem with the I2C multiplexer PCA9544D and Pi4J
Hello, I have connected an I2C multiplexer (PCA9544D) to address 0x70 of the I2C bus. With the
9/1/17
Javalex
2
4/27/17
Q&A
Reading button states from a 4DPi-24-HAT
Ok, after some internal testing/fiddling, plus some (more) digging, I have found the following: -
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i2c
pi4j
raspberrypi
Q&A
Reading button states from a 4DPi-24-HAT
Ok, after some internal testing/fiddling, plus some (more) digging, I have found the following: -
4/27/17
simon
, …
Sachin Singh
3
6/5/19
Q&A
ads1115 differential readings
unsigned char ADS1115_Read_MiliVolts(float* MiliVolt) Read 2 Bytes { float MVolt = 0 ; unsigned char
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i2c
pi4j
Q&A
ads1115 differential readings
unsigned char ADS1115_Read_MiliVolts(float* MiliVolt) Read 2 Bytes { float MVolt = 0 ; unsigned char
6/5/19
simon
2
3/31/17
Q&A
pi4j max17043 lipo fuel gauge i2c library help
hey sry for the big black code block i can't find a edit button for the post but here is a past
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i2c
java
pi4j
Q&A
pi4j max17043 lipo fuel gauge i2c library help
hey sry for the big black code block i can't find a edit button for the post but here is a past
3/31/17
GeertVc
,
Robert Savage
2
2/8/17
Q&A
Measuring time between press and release of a button?
Hi GertVc, Nothing like that exists currently at the GPIO layer. However, there is a "Button
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MCP23017
gpio
i2c
Q&A
Measuring time between press and release of a button?
Hi GertVc, Nothing like that exists currently at the GPIO layer. However, there is a "Button
2/8/17
Alex Noble
, …
synergi...@gmail.com
7
5/12/17
Q&A
MCP23008 LCD (Adafruit i2c Backpack)
Hello, I have also tried to use MCP23008 (Adafruit LCD) with "GpioLcdDisplay" or "
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MCP23008
i2c
pi4j
raspberrypi
Q&A
MCP23008 LCD (Adafruit i2c Backpack)
Hello, I have also tried to use MCP23008 (Adafruit LCD) with "GpioLcdDisplay" or "
5/12/17
GeertVc
2
8/21/16
Q&A
GpioProviderBase: cache array too small when passing MCP23017 pins, even with the dynamic improvments done (see Fix #224)
I think I can already answer the question I asked at the end of the above post myself: I've seen
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MCP23017
gpio
i2c
Q&A
GpioProviderBase: cache array too small when passing MCP23017 pins, even with the dynamic improvments done (see Fix #224)
I think I can already answer the question I asked at the end of the above post myself: I've seen
8/21/16
Robert Savage
7/27/16
Announcement
The Pi4J Project now includes support for Odroid C1/C1+ and Odroid XU4!
The Pi4J Project (as of version 1.1) now includes support for Odroid C1/C1+ and Odroid Xu4! This
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c1
gpio
i2c
odroid
pi4j
serial
spi
xu4
Announcement
The Pi4J Project now includes support for Odroid C1/C1+ and Odroid XU4!
The Pi4J Project (as of version 1.1) now includes support for Odroid C1/C1+ and Odroid Xu4! This
7/27/16
Carlos Duque
, …
Robert Savage
5
8/3/16
Q&A
Using I2C LCD
Here is an example for a simple 4-bit LCD: https://github.com/Pi4J/pi4j/blob/master/pi4j-example/src/
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i2c
Q&A
Using I2C LCD
Here is an example for a simple 4-bit LCD: https://github.com/Pi4J/pi4j/blob/master/pi4j-example/src/
8/3/16
Harald SATTMANN
3/29/16
Q&A
I2C difference in reading values with WiringPi and Pi4J
Hi I wrote a sample program and came over a severe problem. Using WiringPi the readouts of my TMP007
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i2c
Q&A
I2C difference in reading values with WiringPi and Pi4J
Hi I wrote a sample program and came over a severe problem. Using WiringPi the readouts of my TMP007
3/29/16
Harald SATTMANN
,
Kyle Godett
7
2/16/16
Q&A
I2C - use of REPEATED START in reading date from slave MMA8452Q
Hi Found the solution. You are right. Your codesnippet solves the problem after I set the combined
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i2c
java
pi4j
rpi
Q&A
I2C - use of REPEATED START in reading date from slave MMA8452Q
Hi Found the solution. You are right. Your codesnippet solves the problem after I set the combined
2/16/16
Stefan Stefan
1/26/16
Q&A
MCP23008 as Input Errors
Hi there, I have configured a MCP23008 expander as Digital Input and i have the following errors.
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MCP23008
gpio
i2c
pi
pi4j
raspberrypi
rpi
Q&A
MCP23008 as Input Errors
Hi there, I have configured a MCP23008 expander as Digital Input and i have the following errors.
1/26/16
Stefan Stefan
1/24/16
Q&A
I2C producer consumer pattern for MCP23008 and Arduino
Hi, Can someone help me implement producer consumer pattern for i2c ? Right now i am working on a
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MCP23008
gpio
i2c
pi4j
raspberrypi
Q&A
I2C producer consumer pattern for MCP23008 and Arduino
Hi, Can someone help me implement producer consumer pattern for i2c ? Right now i am working on a
1/24/16
Robert Savage
, …
manfred....@gmail.com
6
7/27/16
Announcement
Pi4J Now Supports Non-Privileged Access (no more root/sudo)
This feature is now available in the latest v1.1 release of Pi4J. http://www.savagehomeautomation.com
unread,
gpio
i2c
pi4j
raspberrypi
root
serial
spi
sudo
Announcement
Pi4J Now Supports Non-Privileged Access (no more root/sudo)
This feature is now available in the latest v1.1 release of Pi4J. http://www.savagehomeautomation.com
7/27/16
Robert Savage
,
Igor Alves
3
7/27/16
Announcement
The Pi4J Project now includes support for BananaPi and BananaPro!
This feature is now available in the latest v1.1 release of Pi4J. http://www.savagehomeautomation.com
unread,
banana
bananapi
bananapro
gpio
i2c
serial
spi
uart
Announcement
The Pi4J Project now includes support for BananaPi and BananaPro!
This feature is now available in the latest v1.1 release of Pi4J. http://www.savagehomeautomation.com
7/27/16