home-assistant.io/source/_components/light.mysensors.markdown
2016-04-30 16:39:56 +02:00

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---
layout: page
title: "MySensors Light"
description: "Instructions how to integrate MySensors lights into Home Assistant."
date: 2016-04-13 14:20 +0100
sidebar: true
comments: false
sharing: true
footer: true
logo: mysensors.png
ha_category: Light
featured: false
ha_release: 0.13
---
Integrates MySensors lights into Home Assistant. See the [main component] for configuration instructions.
The following actuator types are supported:
##### MySensors version 1.4
S_TYPE | V_TYPE
---------|--------------
S_DIMMER | V_DIMMER\*, V_LIGHT\*
##### MySensors version 1.5 and higher
S_TYPE | V_TYPE
------------|-------------
S_DIMMER | [V_DIMMER\* or V_PERCENTAGE\*], [V_LIGHT\* or V_STATUS\*]
S_RGB_LIGHT | V_RGB*, [V_LIGHT\* or V_STATUS\*], [V_DIMMER or V_PERCENTAGE]
V_TYPES with a star (\*) denotes required V_TYPES. Use either V_LIGHT or V_STATUS and either V_DIMMER or V_PERCENTAGE for an applicable actuator.
For more information, visit the [serial api] of MySensors.
### {% linkable_title Example sketch %}
```cpp
/*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* http://www.mysensors.org/build/dimmer
*/
#include <MySensor.h>
#include <SPI.h>
#define SN "DimmableRGBLED"
#define SV "1.0"
#define CHILD_ID 1
#define LED_PIN 5
MySensor gw;
char rgb[7] = "ffffff"; // RGB value.
int currentLevel = 0; // Current dimmer level.
MyMessage dimmerMsg(CHILD_ID, V_PERCENTAGE);
MyMessage lightMsg(CHILD_ID, V_STATUS);
MyMessage rgbMsg(CHILD_ID, V_RGB);
void setup()
{
gw.begin(incomingMessage);
gw.sendSketchInfo(SN, SV);
gw.present(CHILD_ID, S_RGB_LIGHT);
// Send initial values.
gw.send(lightMsg.set(currentLevel > 0 ? 1 : 0));
gw.send(dimmerMsg.set(currentLevel));
gw.send(rgbMsg.set(rgb));
}
void loop()
{
gw.process();
}
void incomingMessage(const MyMessage &message) {
if (message.type == V_RGB) {
// Retrieve the RGB value from the incoming message.
// RGB LED not implemented, just a dummy print.
String hexstring = message.getString();
hexstring.toCharArray(rgb, sizeof(rgb));
Serial.print("Changing color to ");
Serial.println(rgb);
gw.send(rgbMsg.set(rgb));
}
if (message.type == V_STATUS || message.type == V_PERCENTAGE) {
// Retrieve the light status or dimmer level from the incoming message.
int requestedLevel = atoi(message.data);
// Adjust incoming level if this is a V_LIGHT update [0 == off, 1 == on].
requestedLevel *= (message.type == V_STATUS ? 100 : 1);
// Clip incoming level to valid range of 0 to 100
requestedLevel = requestedLevel > 100 ? 100 : requestedLevel;
requestedLevel = requestedLevel < 0 ? 0 : requestedLevel;
// Change level value of LED pin.
analogWrite(LED_PIN, (int)(requestedLevel / 100. * 255));
currentLevel = requestedLevel;
// Update the gateway with the current V_STATUS and V_PERCENTAGE.
gw.send(lightMsg.set(currentLevel > 0 ? 1 : 0));
gw.send(dimmerMsg.set(currentLevel));
}
}
```
[main component]: /components/mysensors/
[serial api]: https://www.mysensors.org/download/serial_api_15