mirror of https://github.com/joan2937/pigpio
90 lines
1.5 KiB
Plaintext
90 lines
1.5 KiB
Plaintext
INSTALL
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Extract the archive to a directory.
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IN THAT DIRECTORY
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Enter the following two commands (in this order)
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make
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make install
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This will install:
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the library (libpigpio.a) in /usr/local/lib
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the header file (pigpio.h) in /usr/local/include
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the daemon (pigpiod) in /usr/local/bin
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the socket interface (pigs) in /usr/local/bin
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the utility pig2vcd in /usr/local/bin
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the Python module pigpio.py
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TEST
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To test the library do
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sudo ./checklib
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checklib.c, demolib.c, pig2vcd.c, pigpiod.c, pigs.c, and pigpio.py
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show examples of interfacing with the library.
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DAEMON
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To launch the daemon do
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sudo pigpiod (pigpiod -? for options)
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Once the daemon is launched the socket and fifo interfaces will be
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available.
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When the library starts it locks
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/var/run/pigpio.pid
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The file should be deleted when the library terminates.
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SOCKET INTERFACE
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Use pigs for the socket interface (pigs help for help).
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FIFO INTERFACE
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The fifo interface accepts commands written to /dev/pigpio.
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Results are read from /dev/pigout.
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Errors are output on /dev/pigerr.
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To test the fifo interface perhaps do
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cat /dev/pigout &
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cat /dev/pigerr &
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echo "help" >/dev/pigpio
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PYTHON INTERFACE
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If the pigpiod daemon is running you can test the Python
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interface by entering the following commands.
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python
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import pigpio
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pigpio.start()
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print(pigpio.get_current_tick())
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print(hex(pigpio.read_bank_1()))
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pigpio.stop()
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help(pigpio)
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quit()
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STOP DAEMON
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To stop the pigpiod daemon
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sudo killall pigpiod
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