From 1703aaa4340731b4a4d2abfaa682458c776ef39c Mon Sep 17 00:00:00 2001 From: joan2937 Date: Wed, 11 Jan 2017 10:59:38 +0000 Subject: [PATCH] Update README.md --- README.md | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/README.md b/README.md index 43a1f2f..888cd33 100644 --- a/README.md +++ b/README.md @@ -1,36 +1,36 @@ # pigpio pigpio is a C library for the Raspberry which allows control of the -general purpose input outputs (gpios). +General Purpose Input Outputs (GPIO). Features - sampling and time-stamping of gpios 0-31 between 100,000 and 1,000,000 times per second. + sampling and time-stamping of GPIO 0-31 between 100,000 and 1,000,000 times per second. - provision of PWM on any number of the user gpios simultaneously. + provision of PWM on any number of the user GPIO simultaneously. - provision of servo pulses on any number of the user gpios simultaneously. + provision of servo pulses on any number of the user GPIO simultaneously. - callbacks when any of gpios 0-31 change state (callbacks receive the time of the event + callbacks when any of GPIO 0-31 change state (callbacks receive the time of the event accurate to a few microseconds). - notifications via pipe when any of gpios 0-31 change state. + notifications via pipe when any of GPIO 0-31 change state. callbacks at timed intervals. - reading/writing all of the gpios in a bank (0-31, 32-53) as a single operation. + reading/writing all of the GPIO in a bank (0-31, 32-53) as a single operation. - individually setting gpio modes, reading and writing. + individually setting GPIO modes, reading and writing. socket and pipe interfaces for the bulk of the functionality in addition to the underlying C library calls. - the construction of arbitrary waveforms to give precise timing of output gpio + the construction of arbitrary waveforms to give precise timing of output GPIO level changes (accurate to a few microseconds). - software serial links using any user gpio. + software serial links, I2C, and SPI using any user GPIO. rudimentary permission control through the socket and pipe interfaces so users - can be prevented from "updating" inappropriate gpios. + can be prevented from "updating" inappropriate GPIO. creating and running scripts on the pigpio daemon. @@ -50,7 +50,11 @@ A number of utility programs are provided the pigpiod daemon. the Python module. + the piscope digital waveform viewer + +Examples +See http://abyz.co.uk/rpi/pigpio/examples.html the pigs command line utility. the pig2vcd utility which converts notifications into the value change dump (VCD) -- 2.30.2