Merge: Clean old projects from `contrib`

[nit.git] / contrib / wiringPi / README.md

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-# wiringPi nit wrapper
-
-## Installation
-
-You need to install the [wiringPi library](http://wiringpi.com/). Refer to [download and install](http://wiringpi.com/download-and-install/) manual.
-
-## Compiling
-
-Link to the library must be passed to nit compiler:
-
-       nitc myprogram.nit --cc-lib-name wiringPi
-
-## Usage
-
-You first need to initialize the wiringPi library using a setup methods.
-
-Setup methods are:
-
-* `wiringPi_setup`: This initialises wiringPi and assumes that the calling program is going to be using the wiringPi pin numbering scheme;
-* `wiringPi_setup_gpio`: Same as wiringPi_setup, however it allows the calling programs to use the Broadcom GPIO pin numbers directly with no re-mapping;
-* `wiringPi_setup_phys`: Identical to wiringPi_setup, however it allows the calling programs to use the physical pin numbers on the P1 connector only;
-* `wiringPi_setup_sys`: This initialises wiringPi but uses the /sys/class/gpio interface rather than accessing the hardware directly;
-
-For example:
-
-       # init wiringPi lib with gpio output
-       wiringPi_set_gpio
-
-Then you can refer to a GPIO Pin using its id:
-
-       var pin = new RPIPin(23)
-
-Before read or write a value on a pin you need to set its mode.
-
-Modes are:
-
-* INPUT
-* OUTPUT
-* PWM_OUTPUT
-* GPIO_CLOCK
-
-Note that only wiringPi pin 1 (BCM\_GPIO 18) supports PWM output and only wiringPi pin 7 (BCM\_GPIO 4) supports CLOCK output modes.
-
-       pin.mode(new RPIPinMode.output_mode)
-
-You can then `write` or `read` a value from the pin:
-
-       pin.write(true)
-       pin.read
-
-## Copyrigth
-
-The wiringPi library is released under [GNU LGPLv3](http://www.gnu.org/copyleft/lesser.html) licence.
-