Heatpump controller

Fredrik Carlsson

Hello
nice that you cna use it for something :)
Sorry, I have no idea regarding Daikin, but if you build sometihng to record the codes with maybe you can figure it out and just add that to the library somehow?

Anyway, i have thought more about this and i do actually want to be able to make it a little smarter than the code above.
It would be nice if its possible to send a whole string direct from the controller. ie "send(irSender, POWER_ON, MODE_HEAT, FAN_AUTO, 21, VDIR_AUTO, HDIR_AUTO)" Then I can on the controller side make all the logic and that way have complete control of how the heatpump behaves.

I have tried to search a little, but can not find any concrete answer. How big is the maximum size of the payload you can send with this library?

hek

Answer in big blue box here:
http://www.mysensors.org/build/serial_api

25 bytes.

DirkB19

@johnr

I'm taking my first steps with IR sender/receiver because I'm also looking for controlling my DAIKIN heatpump.
I assembled IR receiver, IR sender and nano and loaded From the examples IR Sender/Receiver sketch.
It works with the remote of my Samsung TV, which it recognises as NEC.
Daikin is not recognized.
My Panasonic TV remote is not recognized.
My Telenet Set-Top box remote is not recognized.
I guess there is a IRlib for Panasonic, right ?

Thx, guys !

ToniA

Nice to see that my little HeatpumpIR library made it all the way here :)

I'm also quite new to MySensors, I actually just started today, I've had all the necessary hardware on my table for some weeks now... My goal is to power a (physically) small MySensors device directly from the Panasonic heatpump, and hide everything within the indoor unit's covers, and have it fully controlled by Domoticz. There's quite a bit of work to do, as for example Domoticz does not have a suitable devuce type yet.

And how about MySensors, I'm still quite a newbie on the messaging schema... Is there a schema which could be used to communicate all of these within the same message:

ON/OFF information (0 or 1)
Temperature information (integer from 8 to 30)
Fan speed information (integer from 0 to 5)
Mode information (COOL, HEAT etc. i.e. integer from 0 to 6)

What comes to Daikin, it would probably be quite easy to add it into the HeatpumpIR code, provided that I could borrow the remote controller for a while. Or, if somebody else could decode the protocol.

johnr

ToniA,

Where are you based? I maybe can send you my remote, if I am sure to get it back ;)
I think it will be a challenge to send all the information with only 25 bytes.

ToniA

In live in Finland...

I now have the HeatpumpIR working together with Domoticz, so that I can also define which commands to send from Domoticz. And yes, 24 bits is plenty enough :)

https://github.com/ToniA/arduino-heatpumpir/tree/master/examples/MySensorsNode

@johnr, do you happen to have an infrared receiver module? If you do, I could assist you in decoding the protocol. This is how I for example got the Mitsubishi protocol decoded, I've never had a Mitsubishi remote controller myself...

hek

Wow, great job @ToniA

Would you consider creating a pull request with the example and HeatpumpIR library when you feel finished?

ToniA

@hek, I created pull request #211. I think it's good enough, the challenges are really on the Domoticz side.

hek

Thanks, I'll take a look!

ToniA

I finally managed to get rid of all compiler warnings :) I must say I like your CI build system, I'm also running Jenkins at work, actually running the build system on Jenkins is my primary job at the moment...

So the heatpump IR sender node is now one of the examples on the MySensors 'development' branch.

hek

Thanks for the work you've put into the HeatpumpIR library,

All creds go to @Anticimex who did the setup of the headless Arduino IDE builder in Jenkins. Messy business to get it right ;)

But it is really nice to get intant compiler feedback on changes and pull requests for different platforms and boards.

johnr

ToniA, I can collect the Daikin remote from my cabin during next week. I have the following IR-reciever, is it enough to decode it per your instructions?

http://www.ebay.com/itm/380746925201?rmvSB=true

ToniA

Yes, I think it would work. I have used this piece of software to decode the bits from the remote.

If you have any heatpump/AC remotes at hand, you could try it out already now. It should also work with TV remotes etc. The only thing is that you might need to adjust the limits it's using to tell the one's and zero's apart.

johnr

Hi Toni,

inally I was able to fetch the Dakikin remote from my cabin. What type of software did you say you use to decode the remote?

ToniA

Quite a co-incidence, I just finished decoding the Sharp/IVT infrared protocol, and pushed my decoder changes into Github:

https://github.com/ToniA/Raw-IR-decoder-for-Arduino

This is the hardware you'd need, just about any Arduino would do, I'm using both Duemilanove and Mega: https://github.com/ToniA/Raw-IR-decoder-for-Arduino/blob/master/arduino_irreceiver.png

If you get the hex sequences and timings out, I can assist with the rest. We can discuss the detail over email (take a look at my Github profile...).

fets

@johnr did you see that : instructables article and associated github

ToniA

Interesting... I took a look at mharizanov's work, and I think I might have a decoder for the protocol here: https://github.com/ToniA/Raw-IR-decoder-for-Arduino

Would you try if this correctly decodes the protocol? I would also appreciate some full outputs of successful decode, together with the explanation of the state the remote control shows after the button press.

If the decoder is correct, creating a Daikin module for the HeatpumpIR library will be a piece of cake :)

ToniA

mharizanov's version of Daikin was different, the protocol now seems to have one extra frame which seems to carry the wall clock time.

The HeatpumpIR library now has the initial (untested) Daikin support.

Panos Toumpaniaris

Hello,

I'm trying to build a sensor node to control a Panasonic AirCon and I'm having trouble (using the latest MySensors and Heatpump-IR libs).
Whenever the node tries to send IR it restarts. I tried switching RF24's CE and CS pins in case the timers conflict and tried to reduce sram usage as much as I could to no avail.

I'm using a nano and RF24 wireless modules. The hardware works ok with other sketches (for example a simple relay ON/OFF).

Here's the sketch:

#include <Arduino.h>
#include <MySensor.h>  
#include <MyTransportNRF24.h>
#include <SPI.h>
#include <Timer.h>
#include <avr/pgmspace.h>
#include <PanasonicHeatpumpIR.h>


#define ACW2_CHILD 2           // Id of the AC Warm 2 hours child
#define ACW6_CHILD 3           // Id of the AC Warm 6 hours child



MyTransportNRF24 radio(7, 8, RF24_PA_MAX);

MySensor gw(radio);

MyMessage acw2Msg(ACW2_CHILD, V_LIGHT);
MyMessage acw6Msg(ACW6_CHILD, V_LIGHT);

IRSender irsender(9);
PanasonicNKEHeatpumpIR *ACIR;

Timer t;

boolean ac_state = false;


void setup() {


  // Initialize library and add callback for incoming messages
  gw.begin(incomingMessage, AUTO, true);

  // Register all sensors to gw (they will be created as child devices)
  gw.present( ACW2_CHILD, S_LIGHT );
  gw.present( ACW6_CHILD, S_LIGHT );
  gw.sendSketchInfo("AC", "1");

  
}

void loop() {
  // MySensors Process
  gw.process();

  

  // Timer Process
  t.update();

}

void incomingMessage(const MyMessage &message) {

  if (message.isAck()) {
         Serial.println(F("This is an ack from gateway"));
      }
      
  if (message.type == V_LIGHT) {
    boolean state = message.getBool();
    
    if (message.sensor == ACW2_CHILD) {
      
      if(state){
        Serial.println(F("--- received ACW2 - ON"));
     schedule_auto(6600000);
     //schedule_auto(6000);      
      }
      else
      {
        Serial.println(F("--- received ACW2 - OFF"));
        ac_off();
      }
      
    }
    
    if (message.sensor == ACW6_CHILD) {
      Serial.println(F("--- received ACW6"));
       if(state){
     schedule_quiet(21000000);      
         }
      else
      {
        ac_off();
      }
     }
    }
}


void schedule_auto(int dur) {

   Serial.println(F("--- sending auto"));
   ACIR->send(irsender, POWER_ON, MODE_HEAT, FAN_AUTO, 26, VDIR_MIDDLE, HDIR_AUTO);
   t.after(dur,ac_off);
   ac_state = true;
  
}

void schedule_quiet(int dur) {

   
   Serial.println(F("--- sending quiet"));
   ACIR->send(irsender, POWER_ON, MODE_HEAT, FAN_1, 25, VDIR_MIDDLE, HDIR_AUTO);
   t.after(dur,ac_off);
   ac_state = true;
  
}

void ac_off() {
  Serial.println(F("--- trying off"));
  if (ac_state) 
  {
    Serial.println(F("--- sending off"));
  ACIR->send(irsender, POWER_OFF, MODE_HEAT, FAN_1, 25, VDIR_MIDDLE, HDIR_AUTO);

  ac_state = false;
  gw.send(acw2Msg.set(false), true);
  gw.send(acw6Msg.set(false), true);
  }
 
}

Here's the Serial output:

send: 2-2-0-0 s=255,c=0,t=18,pt=0,l=5,sg=0,st=ok:1.5.1
send: 2-2-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
read: 0-0-2 s=255,c=3,t=6,pt=0,l=1,sg=0:M
repeater started, id=2, parent=0, distance=1
send: 2-2-0-0 s=2,c=0,t=3,pt=0,l=0,sg=0,st=ok:
send: 2-2-0-0 s=3,c=0,t=3,pt=0,l=0,sg=0,st=ok:
send: 2-2-0-0 s=255,c=3,t=11,pt=0,l=2,sg=0,st=ok:AC
send: 2-2-0-0 s=255,c=3,t=12,pt=0,l=1,sg=0,st=ok:1
read: 0-0-2 s=2,c=1,t=2,pt=0,l=1,sg=0:0
send: 2-2-0-0 s=2,c=1,t=2,pt=0,l=1,sg=0,st=ok:0
--- received ACW2 - OFF
--- trying off
read: 0-0-2 s=2,c=1,t=2,pt=0,l=1,sg=0:1
send: 2-2-0-0 s=2,c=1,t=2,pt=0,l=1,sg=0,st=ok:1
--- resend: 2-2-0-0 s=255,c=0,t=18,pt=0,l=5,sg=0,st=ok:1.5.1
send: 2-2-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
read: 0-0-2 s=255,c=3,t=6,pt=0,l=1,sg=0:M
repeater started, id=2, parent=0, distance=1
send: 2-2-0-0 s=2,c=0,t=3,pt=0,l=0,sg=0,st=ok:
send: 2-2-0-0 s=3,c=0,t=3,pt=0,l=0,sg=0,st=ok:
send: 2-2-0-0 s=255,c=3,t=11,pt=0,l=2,sg=0,st=ok:AC
send: 2-2-0-0 s=255,c=3,t=12,pt=0,l=1,sg=0,st=ok:1

the node restarted at " --- resend" ... it should be "---received"...

Am I missing something?

DirkB19

Hi,

Great news ! :smiley:
I've tested the DaikinHeatpumpIR library and I can report that it works with my Daikin Heatpump, type RXS25G2V1B
FVXS25FV1B
the remote is ARC452A1

I'm really happy that it works and would like to say thank you to the dev's !
Finally I will be able to start some real energy saving by controlling the Daikin heatpump based on conditions like presence, outside temp, (google)-calendar, and heath generated from a second central heating system (allowing me to choose most economic heathing source).

I already have a Nano based sensor node (near the Daikin unit) for PIR motion detection and DHT22 temp/humidity, so hopefully I can manage to integrate the simple ON/OFF via IR into the same sketch.
If not, another dedicated node will be needed.
@ ToniA, do you expect problems when integrating this into the same Mysensors sketch as PIR + DHT22 ?

Bye,
DirkB

Heatpump controller

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