mirror of https://github.com/joan2937/pigpio
174 lines
4.3 KiB
Plaintext
174 lines
4.3 KiB
Plaintext
NOTE
|
|
|
|
The initial part of the make, the compilation of pigpio.c,
|
|
takes 100 seconds on early model Pis. Be patient. The overall
|
|
install takes just over 3 minutes.
|
|
|
|
INSTALL
|
|
|
|
Extract the archive to a directory.
|
|
|
|
IN THAT DIRECTORY
|
|
|
|
Enter the following two commands (in this order)
|
|
|
|
make
|
|
sudo make install
|
|
|
|
This will install
|
|
|
|
o the library (libpigpio.so) in /usr/local/lib
|
|
o the library (libpigpiod_if.so) in /usr/local/lib
|
|
o the library (libpigpiod_if2.so) in /usr/local/lib
|
|
o the header file (pigpio.h) in /usr/local/include
|
|
o the header file (pigpiod_if.h) in /usr/local/include
|
|
o the header file (pigpiod_if2.h) in /usr/local/include
|
|
o the daemon (pigpiod) in /usr/local/bin
|
|
o the socket interface (pigs) in /usr/local/bin
|
|
o the utility pig2vcd in /usr/local/bin
|
|
o man pages in /usr/local/man/man1 and /usr/local/man/man3
|
|
o the Python module pigpio.py for Python 2 and 3
|
|
|
|
TEST (optional)
|
|
|
|
*** WARNING ************************************************
|
|
* *
|
|
* All the tests make extensive use of gpio 25 (pin 22). *
|
|
* Ensure that either nothing or just a LED is connected to *
|
|
* gpio 4 before running any of the tests. *
|
|
* *
|
|
* Some tests are statistical in nature and so may on *
|
|
* occasion fail. Repeated failures on the same test or *
|
|
* many failures in a group of tests indicate a problem. *
|
|
************************************************************
|
|
|
|
To test the library do
|
|
|
|
sudo ./x_pigpio
|
|
|
|
To test the pigpio daemon do
|
|
|
|
sudo pigpiod
|
|
|
|
./x_pigpiod_if # test the C I/F to the pigpio daemon
|
|
./x_pigpiod_if2 # test the C I/F to the pigpio daemon
|
|
./x_pigpio.py # test the Python I/F to the pigpio daemon
|
|
./x_pigs # test the socket I/F to the pigpio daemon
|
|
./x_pipe # test the pipe I/F to the pigpio daemon
|
|
|
|
EXAMPLE CODE
|
|
|
|
x_pigpio.c, pig2vcd.c, and pigpiod.c show examples of interfacing
|
|
with the pigpio library.
|
|
|
|
pigs.c, pigpio.py, x_pigpiod_if, x_pigpiod_if2.c, x_pigpio.py,
|
|
x_pigs, and x_pipe show examples of interfacing with the pigpio
|
|
daemon. x_pipe uses the pipe interface, the others use the
|
|
socket interface.
|
|
|
|
DAEMON
|
|
|
|
To launch the daemon do
|
|
|
|
sudo pigpiod (pigpiod -? for options)
|
|
|
|
Once the daemon is launched the socket and pipe interfaces will be
|
|
available.
|
|
|
|
When the library starts it locks
|
|
|
|
/var/run/pigpio.pid
|
|
|
|
The file should be automatically deleted when the library terminates.
|
|
|
|
SOCKET INTERFACE
|
|
|
|
Use pigs for the socket interface (pigs help for help).
|
|
|
|
PIPE INTERFACE
|
|
|
|
The pipe interface accepts commands written to /dev/pigpio.
|
|
|
|
Results are read from /dev/pigout.
|
|
|
|
Errors are output on /dev/pigerr.
|
|
|
|
To test the pipe interface perhaps do
|
|
|
|
cat /dev/pigout &
|
|
cat /dev/pigerr &
|
|
|
|
echo "help" >/dev/pigpio
|
|
|
|
PYTHON MODULE
|
|
|
|
The Python pigpio module is installed to the default Python location
|
|
for Python 2 and Python 3.
|
|
|
|
You can install it for additional Python versions by
|
|
|
|
pythonx.y setup.py install
|
|
|
|
where x.y is the Python version.
|
|
|
|
STOP DAEMON
|
|
|
|
To stop the pigpiod daemon
|
|
|
|
sudo killall pigpiod
|
|
|
|
RUNNING ON NON Pi's
|
|
|
|
You can access the pigpiod daemon running on the Pi from any machine which
|
|
is connected to it over the network. This access is via the socket interface.
|
|
|
|
In particular this allows you to use the following on non-Pi's.
|
|
|
|
o pigs
|
|
o the pigpio Python module
|
|
o the C socket I/F using libpigpiod_if (header file pigpiod_if.h)
|
|
o the C socket I/F using libpigpiod_if2 (header file pigpiod_if2.h)
|
|
|
|
On a Linux machine
|
|
|
|
make -f MakeRemote clean
|
|
make -f MakeRemote
|
|
make -f MakeRemote install
|
|
|
|
This will install
|
|
|
|
o the library (libpigpiod_if.so) in /usr/local/lib
|
|
o the library (libpigpiod_if2.so) in /usr/local/lib
|
|
o the header file (pigpio.h) in /usr/local/include
|
|
o the header file (pigpiod_if.h) in /usr/local/include
|
|
o the header file (pigpiod_if2.h) in /usr/local/include
|
|
o the socket interface (pigs) in /usr/local/bin
|
|
o man pages in /usr/local/man/man1 and /usr/local/man/man3
|
|
o the Python module pigpio.py
|
|
|
|
On Windows machines (and possibly Macs)
|
|
|
|
The Python module should install with
|
|
|
|
python setup.py install
|
|
|
|
pigs, pigpiod_if, and pigpiod_if2 will need minor mods to
|
|
reflect the Windows/Mac socket interface.
|
|
|
|
DOCUMENTATION
|
|
|
|
The most up to date should be http://abyz.me.uk/rpi/pigpio/
|
|
|
|
On the Pi try
|
|
|
|
man pigs
|
|
man pigpiod
|
|
man pig2vcd
|
|
|
|
man pigpio
|
|
man pigpiod_if
|
|
man pigpiod_if2
|
|
|
|
pydoc pigpio
|
|
|