rpgpio v0.0.7

#rpgpio A very simple library to program the raspberry pi gpio

IN DEVELOPMENT, USE AT YOUR OWN RISK, NO PIN VALIDATION

##Prequisites

• nodejs and npm

##Install npm i rpgpio

##Examples https://github.com/btinoco/raspberry-pi

##API THIS API IS IN DEVELOPMENT

To instantiate rpgpio

var gpio = require('rpgpio');

The first thing you want to do before writing or reading a pin is to set it up.

gpio.setup(pin_number, direction (gpio.IN or gpio.OUT), callback(error, data));

To write to a pin, you must set it up first (see example above) and then write to the pin

gpio.write(pin_number, value (1-on or 2-off), callback(error, data));

To read a pin, you must set it up first (see example above) and then read the pin

gpio.read(pin_number, callback(error, data));

To export a pin

gpio.export(pin_number, callback(error, data));

To unexport a pin

gpio.unexport(pin_number, callback(error, data))    

To check if a pin has been exported

gpio.exported(pin_number, callback(error, data));

To get the direction of the pin

gpio.direction.get(pin_number, callback(error, data));

To set the direction of the pin

gpio.direction.set(pin_number, callback(error, data));

To get the list of exported (in and out) pins

gpio.list();
   

##Examples

• Setting up and writing to a pin. When writing you can send a 1 for on and a 0 for off

  var gpio = require('rpgpio');
  var pin = 12;
  
  gpio.setup(pin, gpio.OUT, function(error, data){;
  
      if(error)
          return console.error(error);
  
      gpio.write(pin, 1, function(error, data){
  
          console.log(error || data);
  
      });
  
  });

• Setting up and reading a pin

  var gpio = require('rpgpio');
  var pin = 12;
  
  gpio.setup(pin, gpio.IN, function(error, data){;
  
      if(error)
          return console.error(error);
  
      gpio.read(pin, function(error, data){
  
          console.log(error || data);
  
      });
  
  });