node-rcswitch3
==============

[![NPM version](https://badge.fury.io/js/rcswitch3.svg)](http://badge.fury.io/js/rcswitch3)

Node bindings for the [rcswitch](https://github.com/sui77/rc-switch).

## Changes

This is an extended version of [node-rcswitch](https://github.com/marvinroger/node-rcswitch) project and the [node-rcswitch2](https://github.com/fredericvl/node-rcswitch-gpiomem2) project.

Comparing to original [node-rcswitch](https://github.com/marvinroger/node-rcswitch) it has:
* [#9](https://github.com/marvinroger/node-rcswitch/issues/9) - Replaced [outdated](https://github.com/r10r/rcswitch-pi/issues/25) [rcswitch-pi](https://github.com/r10r/rcswitch-pi) dependency with the latest version of [rc-switch](https://github.com/sui77/rc-switch) project
* [#11](https://github.com/marvinroger/node-rcswitch/issues/11) - Added code receiving bindings
* [#13](https://github.com/marvinroger/node-rcswitch/issues/13) - Exporting of class instead of already created instance
* __Updated to work with nodejs v10.x.x__ fixing the build error that ocurred

Although the project is now using generic RcSwitch library, it's still intended to be used on Raspberry Pi only.

## Requirements

* Like the C++ version of [rcswitch](https://github.com/sui77/rc-switch), [WiringPi must be installed](https://projects.drogon.net/raspberry-pi/wiringpi/download-and-install/) in order to compile.
* Both the data and the power Pins of the 315/433Mhz emitter must be connected to the RPi. Note the number of the WiringPi data Pin. (see http://wiringpi.com/pins/)
* The node command must be run with root access

## Usage

### Sending

```javascript
var RcSwitch = require('rcswitch'); // Might throw an error if wiring pi init failed, or exit process if no root (must work on that)
var rcswitch = new RcSwitch();

rcswitch.enableTransmit(0); // Use data Pin 0 (GPIO 17)
rcswitch.switchOn("10110", 1); // Switch on the first unit of 10110 (code 1x23x) group
rcswitch.switchOff("11000", 2); // Switch off the second unit of 11000 (code 12xxx) group
```

### Receiving

```javascript
var RcSwitch = require('rcswitch'); // Might throw an error if wiring pi init failed, or exit process if no root (must work on that)
var rcswitch = new RcSwitch();

rcswitch.enableReceive(2); // Use data Pin 2 (GPIO 27)
setInterval(function () {
    if (rcswitch.available()) { // Check if there is a pending code
        console.log(rcswitch.getReceivedValue()); // Read and print the code
        rcswitch.resetAvailable(); // Reset `available` state
    }
}, 500); // Set code checking interval
```

## API

### Sending

#### Configuration

##### rcswitch.enableTransmit(`pin`)

Enable transmission on the given pin (make it an OUTPUT). Must be called before any other functions.

* `pin` - (Number) data Pin to use following [the WiringPi schema](http://wiringpi.com/pins/)

Return true if `pin` is an integer, false otherwise.

##### rcswitch.disableTransmit()

Disable transmission (set the pin to -1 which disable any following function call).

Return true.

#### Type A

![Type A switch](https://raw.github.com/jdrucey/node-rcswitch3/master/img/type_a.jpg "Type A switch")

##### rcswitch.switchOn(`group`, `switch`)

Switch a remote switch on (Type A with 10 pole DIP switches).

* `group` - (String) code of the switch group (refers to DIP switches 1, 2, 3, 4 and 5 where "1" = on and "0" = off - e.g. if all DIP switches are on it's "11111")
* `switch` - (Number) switch number (can be 1 (if DIP switch A is on), 2 (if DIP switch B is on) and so on until 4)

Return true.

##### rcswitch.switchOff(`group`, `switch`)

Switch a remote switch off (Type A with 10 pole DIP switches).

* `group` - (String) code of the switch group (refers to DIP switches 1, 2, 3, 4 and 5 where "1" = on and "0" = off - e.g. if all DIP switches are on it's "11111")
* `switch` - (Number) switch number (can be 1 (if DIP switch A is on), 2 (if DIP switch B is on) and so on until 4)

Return true.

#### Type B

![Type B switch](https://raw.github.com/jdrucey/node-rcswitch3/master/img/type_b.jpg "Type B switch")

##### rcswitch.switchOn(`group`, `switch`)

Switch a remote switch on (Type B with two rotary/sliding switches).

* `group` - (Number) group (can be 1, 2, 3, 4)
* `switch` - (Number) switch (can be 1, 2, 3, 4)

Return true.

##### rcswitch.switchOff(`group`, `switch`)

Switch a remote switch off (Type B with two rotary/sliding switches).

* `group` - (Number) group (can be 1, 2, 3, 4)
* `switch` - (Number) switch (can be 1, 2, 3, 4)

Return true.

#### Type C

##### rcswitch.switchOn(`family`, `group`, `switch`)

Switch a remote switch on (Type C Intertechno).

* `family` - (String) familycode (can be a, b, c, d, e, f)
* `group` - (Number) group (can be 1, 2, 3, 4)
* `switch` - (Number) switch (can be 1, 2, 3, 4)

Return true.

##### rcswitch.switchOff(`family`, `group`, `switch`)

Switch a remote switch off (Type C Intertechno).

* `family` - (String) familycode (can be a, b, c, d, e, f)
* `group` - (Number) group (can be 1, 2, 3, 4)
* `switch` - (Number) switch (can be 1, 2, 3, 4)

Return true.

#### Other

##### rcswitch.send(`code`)

Send raw binary string code.

* `code` - (String) code

Return true.

##### rcswitch.sendTriState(`code`)

Send tri-state code.

* `code` - (String) tri-state code

Return true.

This function is useful for eg. micro-electric AS 73 which is also sold as REV Telecontrol in Germany (Version with house code with 6 DIP switches).

This socket has 10 DIP-Switches.

The house code uses the first 6 switches, the receiver code is set by the next 4 switches. For the house code, the switch position OFF is represented by F and switch position ON by 0.

Receiver codes:

Channel	Switches 7-10
* `0FFF` Channel A
* `F0FF` Channel B
* `FFF0` Channel C
* `FF0F` Channel D

* `FF` or `F0` Button on
* `0F` Button off

The input string for the function is `[homecode][channel][on/off value]` 
e.g. F000000FFFFF for homecode 100000, Channel A and button on.

### Receiving

#### rcswitch.enableReceive(`pin`)

Enable receiving on the given pin (make it an INPUT). Must be called before any other functions.

* `pin` - (Number) data Pin to use following [the WiringPi schema](http://wiringpi.com/pins/)

Return true if `pin` is an integer, false otherwise.

#### rcswitch.disableReceive()

Disable receiving (set the pin to -1 which disable any following function call).

Return true.

#### rcswitch.available()

Check if the code was received.

Return true if there is a pending code, false otherwise.

#### rcswitch.resetAvailable()

Reset `available` state to start recognizing of the next code.

Return true.

#### rcswitch.getReceivedValue()

Get the last received code.

Return integer representation of the code.

#### rcswitch.getReceivedBitlength()

Get bit length of the last received code.

Return integer length.

#### rcswitch.getReceivedDelay()

Get delay.

Return integer delay.

#### rcswitch.getReceivedProtocol()

Get protocol.

Return integer protocol.

#### rcswitch.getReceivedRawdata()

Get raw data.

Return array of raw data.