openHAB binding

bkl

I have some RGB lights, using mysensors and openhab

Item configuration

Color	Light_6_0		"Light Left"						(gBio,gLights)		{mysensors="6;0;V_RGB"}

Sketch

#include <MySensor.h>
#include <ChainableLED.h>
#include <SPI.h>

#define NODE_ID 6

#define NUM_LEDS 1

int counter[NUM_LEDS];

int current[NUM_LEDS][3];
int step[NUM_LEDS][3];

unsigned long SLEEP_TIME = 10;

MySensor gw;
//ChainableLED leds(7, 8, 1);
ChainableLED leds(5, 6, NUM_LEDS);  // CLK, DATA, LEDS

void setup() {   
  leds.init();
  for(byte childId = 0; childId < NUM_LEDS; childId++) {
    counter[childId] = 0;
    current[childId][0] = 0;
    current[childId][1] = 0;
    current[childId][2] = 0;
    step[childId][0] = 0;
    step[childId][1] = 0;
    step[childId][2] = 0;
    leds.setColorRGB(childId, current[childId][0], current[childId][1], current[childId][2]); // Turn of on startup
  }
  
  // Initialize library and add callback for incoming messages
  gw.begin(incomingMessage, NODE_ID, true);
  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("RGB Led", "1.2");
  for(byte childId = 0; childId < NUM_LEDS; childId++) {
   gw.present(childId, S_RGB_LIGHT);
  }
}


void loop()  {
  // Alway process incoming messages whenever possible
  gw.process();

  for(byte childId = 0; childId < NUM_LEDS; childId++) {
    if(counter[childId] >= 0) {
      counter[childId]--;
      int i = 1020 - counter[childId];
      current[childId][0] = calculateVal(step[childId][0], current[childId][0], i);
      current[childId][1] = calculateVal(step[childId][1], current[childId][1], i);
      current[childId][2] = calculateVal(step[childId][2], current[childId][2], i);
      
      leds.setColorRGB(childId, current[childId][0], current[childId][1], current[childId][2]);
    }
  }
  
  gw.wait(SLEEP_TIME);
}

void incomingMessage(const MyMessage &message) {
  // We only expect one type of message from controller. But we better check anyway.
  if (message.type==V_RGB) {
    String hexstring = message.getString();
    long number = (long) strtol( &hexstring[0], NULL, 16);
    int colorR = number >> 16;
    int colorG = number >> 8 & 0xFF;
    int colorB = number & 0xFF;
    
     // Write some debug info
     Serial.print("Incoming change for sensor:");
     Serial.print(message.sensor);
     Serial.print(", Red: ");
     Serial.print(colorR);
     Serial.print(", Green: ");
     Serial.print(colorG);
     Serial.print(", Blue: ");
     Serial.print(colorB);
     Serial.print(", New status: ");
     Serial.println(message.getString());

      setColor(message.sensor, colorR, colorG, colorB);
     //leds.setColorRGB(message.sensor, colorR, colorG, colorB);
   } 
}

void setColor(byte led, int R, int G, int B) {
  step[led][0] = calculateStep(current[led][0], R);
  step[led][1] = calculateStep(current[led][1], G);
  step[led][2] = calculateStep(current[led][2], B);

  counter[led] = 255;
}

int calculateStep(int prevValue, int endValue) {
  int step = endValue - prevValue; // What's the overall gap?
  if (step) {                      // If its non-zero, 
    step = 255/step;              //   divide by 1020
  } 
  return step;
}

int calculateVal(int step, int val, int i) {

  if ((step) && i % step == 0) { // If step is non-zero and its time to change a value,
    if (step > 0) {              //   increment the value if step is positive...
      val += 1;           
    } 
    else if (step < 0) {         //   ...or decrement it if step is negative
      val -= 1;
    } 
  }
  // Defensive driving: make sure val stays in the range 0-255
  if (val > 255) {
    val = 255;
  } 
  else if (val < 0) {
    val = 0;
  }
  return val;
}

The sketch may be a bit over complicated, but the important part is the incomingMessage, all the rest is because I like to fade between the colors.

Hope it help you.

skatun

@bkl Thanks for your code, just to be sure, you only have 1 LED in your LED strip? NUM_LEDS = 1 or does that define child ID? In mine I have 38, 52,43,78,23,67 leds in my ledstrips. How can I modify your code to be used as locally attached sensor on the gateway? Also I have 6 ledstrip connected to my gateway.

bkl

@skatun

My code was just to show how the integration between openhab and mysensors is working.
And correct my led strip is controlled by a single P9813 chip,

You could try and change NUM_LEDS but this will also increase the number of Sensors in openhab/mysensors
Or you could group them togetter in the sketch.

NickBuilder

Is it possible to change de default baud rate for the 1.8.0 binding? As I'm using a 8 MHz mini for my serial gateway I would like to set the baudrate to 38.4 kbps.

I read that this would be possible for the Openhab 2.0 binding but I'm reluctant to move to Openhab 2.0 as its only a beta at the moment.

Is it possible otherwise to compile a new jar with this lower baud rate? I guess two versions would be enough, 38.4 and 115.2.

Thanks!

jerseyguy1996

I've been trying to get a mysensors node which is using an nRF24L01+ to transmit to a directly connected nRF24L01+ on a Raspberry Pi 3 running PiGatewaySerial. When I start the gateway I get

Starting PiGatewaySerial...
Protocol version - 1.4
Created PTY '/dev/pts/0'
Gateway tty: /dev/ttyMySensorsGateway

Following some other instruction I created a link to /dev/ttyUSB20 so that openhab could recognize it. I have Openhab with your serial binding in the addons folder. I am having difficulty with the binding. I feel like I have made a tiny bit of headway but it doesn't seem to be able to bind with it. In the openhab debug log I get:

2016-07-16 14:39:15.537 [ERROR] [.service.AbstractActiveService] - Error while executing background thread MySensors Refresh Service
java.lang.NullPointerException: null
	at org.openhab.binding.mysensors.internal.gateway.Serial.write(Serial.java:82) ~[na:na]
	at org.openhab.binding.mysensors.internal.MySensorsBinding.execute(MySensorsBinding.java:178) ~[na:na]
	at org.openhab.core.binding.AbstractActiveBinding$BindingActiveService.execute(AbstractActiveBinding.java:156) ~[na:na]
	at org.openhab.core.service.AbstractActiveService$RefreshThread.run(AbstractActiveService.java:173) ~[na:na]

What other information would you need to know to help me trouble shoot this?

EDIT: This has been solved. See here:
https://forum.mysensors.org/topic/4315/attempt-to-bind-ttymygatewayserial-to-openhab-failing-miserably

bkl

@NickBuilder

Hi

No need for a new version, baudrate is configurable

just set.
mysensors:baudrate=38400

NickBuilder

@bkl

Thank you @bkl! That is the best answer I could have wished for. :)

I've actually tried some similar prefixes to the port definition, such as "...:38400" and "...@38400" etc. I haven't found any documentation describing the available binding settings more than the port definition that you mention here at the top. I guess the documentation will be more complete for the Openhab 2.0 binding description.

Thank you for your great work here!

Peter Šuľaj

Hello I have a trouble with binding.
My gateway 1.5.4 still only show
[DEBUG] [.b.m.internal.MySensorsBinding] - Gateway Version: 1.5.4
2016-07-20 15:30:58.044 [DEBUG] [.b.m.internal.MySensorsBinding] - I_LOG_MESSAGE: read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
2016-07-20 15:31:00.060 [DEBUG] [.b.m.internal.MySensorsBinding] - I_LOG_MESSAGE: read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
2016-07-20 15:31:02.067 [DEBUG] [.b.m.internal.MySensorsBinding] - I_LOG_MESSAGE: read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
2016-07-20 15:31:04.074 [DEBUG] [.b.m.internal.MySensorsBinding] - I_LOG_MESSAGE: read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
but nothing else .
I tested lot of sensor but still same error.
Have you any idea ?
Thanks

jerseyguy1996

@Peter-Šuľaj I'm fairly new to this stuff, but curious if you are trying to auto-assign node ID? I don't believe the MySensorsBinding supports auto-assign so you have to define it as static and use:

#define NODEID  3 //or whatever

//and then call this in your setup instead of Sensor.begin();
Sensor.begin(NULL, NODEID);

in your script. Again, not sure if this is your problem but I figured I would chime in.

NickBuilder

@bkl
Hello again!

Is there also support for sending the ack bit from the gw in some way? I saw that this is actually possible in the 2.0 binding. If it's possible how is a "not ack" handled? This would be very useful for e.g. a relay sensor.

I also noticed that you're not the author of the 2.0 binding, I'm sorry for making that assumption.

Thanks!

jerseyguy1996

This binding works perfectly! Thanks for putting it together!

HenryWhite

Thanks for the Binding! It would be very nice if you could implement SmartSleep, so that the node sends a heartbeat message to the Controller when waking up.

Alex Schick

Hi,
I had a working serial Gateway and one temp sensor setup.
I now updated to 2.0 version for both but I can't see the gateway working with openhap while the sensor can send it's data fine it looks.
Any idea what could be the problem?

Sensor Serial log:

Starting sensor (RNNNA-, 2.0.0)
TSM:INIT
TSM:RADIO:OK
TSP:ASSIGNID:OK (ID=1)
TSM:FPAR
TSP:MSG:SEND 1-1-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSP:MSG:READ 0-0-1 s=255,c=3,t=8,pt=1,l=1,sg=0:0
TSP:MSG:FPAR RES (ID=0, dist=0)
TSP:MSG:PAR OK (ID=0, dist=1)
TSM:FPAR:OK
TSM:ID
TSM:CHKID:OK (ID=1)
TSM:UPL
TSP:PING:SEND (dest=0)
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=ok:1
TSP:MSG:READ 0-0-1 s=255,c=3,t=25,pt=1,l=1,sg=0:1
TSP:MSG:PONG RECV (hops=1)
TSP:CHKUPL:OK
TSM:UPL:OK
TSM:READY
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=ok:0100
!TSP:MSG:SEND 1-1-0-0 s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=fail:2.0.0
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,ft=1,st=ok:0
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=11,pt=0,l=18,sg=0,ft=0,st=ok:Temperature Sensor
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=ok:1.1
TSP:MSG:SEND 1-1-0-0 s=0,c=0,t=6,pt=0,l=0,sg=0,ft=0,st=ok:
Request registration...
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=ok:2
TSP:MSG:READ 0-0-1 s=255,c=3,t=27,pt=1,l=1,sg=0:1
Node registration=1
Init complete, id=1, parent=0, distance=1, registration=1
TSP:MSG:SEND 1-1-0-0 s=0,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=ok:24.7

Openhab:

2016-08-22 10:23:43.295 [DEBUG] [ySensorsGenericBindingProvider] - New Item "tempWhz1 (Type=NumberItem, State=Uninitialized)" based on configuration "1;0;V_TEMP"
2016-08-22 10:23:43.331 [DEBUG] [.b.m.internal.MySensorsBinding] - activate
2016-08-22 10:23:43.342 [DEBUG] [.o.b.m.internal.gateway.Serial] - Serial port '/dev/ttyAMA0' has been found.
2016-08-22 10:23:43.353 [INFO ] [.service.AbstractActiveService] - MySensors Refresh Service has been started

And nothing else more on the openhab.log even I restart the sensor node.

Alex Schick

@Alex-Schick
I recognized that baudrate switched for gateway to 74880 instead of 115200 as before.
That is related to https://forum.mysensors.org/topic/1483/trouble-with-115200-baud-on-3-3v-8mhz-arduino-like-serial-gateway-solution-change-baudrate/9

Changed by adding setting in open hab mysensors:baudrate=74880
But opening serial on the raspberry I only see rubish (fine when connected to PC). So connection seems to be not ok....

EDIT: Got it sorted. Flashed for 16mhz and it worked fine with baud rate 38400.

momanz11

Greetings All,

I would very much like to download this binding, but the download link appears to be broken. Any possibility we could fix the link or repost the binding jar file.

Looks like the server is back up!

Thanks!

Momanz

sensorchecker

Hello all,

i use a ATMEGA328P with internal clock (MysBootloader) and have a 4-channel relay board connected at the Arduino outputs D3-D6 (current MySensors Example Sketch).

As central unit i use a RaspberryPi with openhab 1.8 and a serial gateway (Arduino Nano) and the MySensors- OpenHAB serial binding of @bkl

The OpenHab item looks like this:

Switch Lights_Downlights_Front "Downlights Front" <selfLight> (Outdoor, Lights_Outdoor) {mysensors="54;1;V_STATUS"}

Unfortunately I can not switch the relays ON or OFF.
Many other sensors (Temp, Hum, Rain) works fine with this environment.

Any help is appreciated!

Greets & Thanks

NickBuilder

Hi @bkl and all other user of this great binding!

I would like to know if its possible to send a message using this binding. I will try to explain my problem.

I've built the "EnergyMeterPulseSensor.ino" sensor and I have it up and running. The sketch request a starting number for the count loop and if the item in Openhab has been initialized this value is sent back per request.
This request function is only active before the actual count begins.

I would now like to be able to reset the counter each midnight but as the sensor only requests the start count value at each startup I would have to manually restart the sensor at the same time as I have "reinitialized" the count item with a "0".

I now see two ways of doing this if this binding allows it:

1: Send a "I_REBOOT" in some way through the binding directly after manually updating the count item with a "0".
2: Sending a new count value via the V_VAR1 parameter. This would be preferable I guess.

In this thread @stoffej is after the same thing. I've tried the same approach using a myPulsecountItem.sendCommand(0) but other than adding a "0" to the persistence service nothing happens. The count continues where it left off. So my guess is that there is no actual message sent to the sensor. Sadly I don't get any useful information from the debug-xml. I don't know where @stoffej got the debug message I_LOG_MESSAGE:..., my serial debugging interface towards the gateway is occupied.

My count item is defined as:

Number  myElecVar "Elmätare pulser [%d]" {mysensors="50;1;V_VAR1"}

I guess if I could utilize a switch item in some way I could send a message in the same way as in the relay implementation. For a switch I know that a message is being sent as I've built one of those myself but the switch can only send "on" or "off".

Here's the receive function from the sketch:

void receive(const MyMessage &message) {
  if (message.type==V_VAR1) {  
    pulseCount = oldPulseCount = message.getLong();
    Serial.print("Received last pulse count from gw:");
    Serial.println(pulseCount);
    pcReceived = true;
  }
}

Assistance is much appreciated!

NickBuilder

@sensorchecker Hi!
Its not easy helping you using only the posted information. Any debug logs available from Openhab or the serial interface terminal?

My item defintion looks the same:

Switch Lampa <light> {mysensors="40;1;V_STATUS"}

Kodiak80

I'm trying to get a single Dallas Temp sensor displayed in OpenHAB using the Serial Gateway. I'm running the MySensors v2 Dallas Temp sketch, and I'm seeing my sensor in the logs. However, I'm getting the following:

2016-09-28 07:34:21.805 [ERROR] [i.internal.GenericItemProvider] - Binding configuration of type 'mysensors' of item ?Temperature? could not be parsed correctly.
java.lang.NullPointerException: null
	at java.util.regex.Matcher.getTextLength(Matcher.java:1234) ~[na:1.7.0_101]
	at java.util.regex.Matcher.reset(Matcher.java:308) ~[na:1.7.0_101]
	at java.util.regex.Matcher.<init>(Matcher.java:228) ~[na:1.7.0_101]
	at java.util.regex.Pattern.matcher(Pattern.java:1088) ~[na:1.7.0_101]
	at org.openhab.binding.mysensors.internal.MySensorsGenericBindingProvider.validateItemType(MySensorsGenericBindingProvider.java:57) ~[na:na]
	at org.openhab.model.item.internal.GenericItemProvider.internalDispatchBindings(GenericItemProvider.java:347) [org.openhab.model.item_1.8.3.jar:na]
	at org.openhab.model.item.internal.GenericItemProvider.internalDispatchBindings(GenericItemProvider.java:324) [org.openhab.model.item_1.8.3.jar:na]
	at org.openhab.model.item.internal.GenericItemProvider.processBindingConfigsFromModel(GenericItemProvider.java:171) [org.openhab.model.item_1.8.3.jar:na]
	at org.openhab.model.item.internal.GenericItemProvider.modelChanged(GenericItemProvider.java:390) [org.openhab.model.item_1.8.3.jar:na]
	at org.openhab.model.core.internal.ModelRepositoryImpl.notifyListeners(ModelRepositoryImpl.java:159) [org.openhab.model.core_1.8.3.jar:na]
	at org.openhab.model.core.internal.ModelRepositoryImpl.addOrRefreshModel(ModelRepositoryImpl.java:100) [org.openhab.model.core_1.8.3.jar:na]
	at org.openhab.model.core.internal.folder.FolderObserver.checkFolder(FolderObserver.java:142) [org.openhab.model.core_1.8.3.jar:na]
	at org.openhab.model.core.internal.folder.FolderObserver.run(FolderObserver.java:99) [org.openhab.model.core_1.8.3.jar:na]

My item definition looks like the following:

Number  Temperature           "Temp [%s °C]"     <temperature>   (gBio,gTemperature)     {mysensors=105;1;V_TEMP}

As a follow-on, I've been trying to understand the {mysensors=105;1;V_TEMP} binding and what the semicolon separated values represent. So far I've been following example code, and haven't found the right documentation. Can someone point me to the right place? I appreciate any help.

bkl

@NickBuilder
From what i know sendCommand should be the way to go.

myElecVar.sendCommand(0);

That should send the value to your sensor, and then update its value of pulseCount

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