Heatpump controller

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

ToniA

@Panos-Toumpaniaris said:

Am I missing something?

Yes you are :smiley:

You just have an uninitialized pointer to PanasonicNKEHeatpumpIR, while you should have this instead:

PanasonicNKEHeatpumpIR *ACIR = new PanasonicNKEHeatpumpIR();

ToniA

@DirkB19 said:

@ ToniA, do you expect problems when integrating this into the same Mysensors sketch as PIR + DHT22 ?

It should be fine. Just make sure that if you have any interrupt handlers (PIR?), make sure they execute fast so that they don't mess up the timings. It's probably not a very good idea to disable interrupts while sending the IR, as the IR sending takes several hundreds of milliseconds.

Panos Toumpaniaris

@ToniA said:

@Panos-Toumpaniaris said:

Am I missing something?

Yes you are :smiley:

You just have an uninitialized pointer to PanasonicNKEHeatpumpIR, while you should have this instead:
PanasonicNKEHeatpumpIR *ACIR = new PanasonicNKEHeatpumpIR();

Sorry I didn't answer sooner.. I was having too much fun with my working node!
I just forgot a constructor and no matter how many times I went through my code I couldn't see it!
Thanks so much Toni!

One down 30 more nodes to go!

ToniA

Just got my Sensebenders this week. I can confirm that the HeatpumpIR library works also on the Sensebender :) Nice...

Fredrik Carlsson

@ToniA
Hey, thanks for all the work you have put down. I have had some other projects going the last year so have not really put down more time on this.

How is it working with the sensebender? Are you using it on batteries?
Any ide about battery usage?

ToniA

I just got it running on Sensebender today, on my desk. The problem is that this is not a 'sensor', but an 'actuator'. So it needs to listen to the radio all the time. I believe it would not run on batteries for too long.

I was asking about how to power the Sensebender in another thread, but didn't yet get any real answers. So let's try once more:

What kind of schema should I use to power the Sensebender (with NRF24), provided that I have +5V DC available, and I have a bunch of different capacitors and 'LE33ACZ 5V-3.3V Step Down Regulators'?

Fredrik Carlsson

Hello
It would be nice to make it run on batteries, maybe with 10 seconds sleep, and then wake up only to check with gateway if there is a new command and then sleep again.

I am building a pir sensor now based on 3*aa batteris running on 4,5 volt.I will ust use an LE33 step down directly after the battery pack to provide power to both sensebender+radio+pir. Dont know if that is the optimal way to do it but it should work

BR3NDA

I have my heatpump mysensor working, and hooked up to Openhab.

Arduino code here:

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

#include <PanasonicCKPHeatpumpIR.h>
#include <PanasonicHeatpumpIR.h>

#define POWER_ID 0
#define MODE_ID 1
#define FAN_ID 2
#define TEMP_ID 3
#define VDIR_ID 4
#define HDIR_ID 5


MySensor gw;
MyMessage powerMsg(POWER_ID, V_STATUS); 
MyMessage modeMsg(MODE_ID, V_HVAC_FLOW_STATE);
MyMessage fanMsg(FAN_ID, V_PERCENTAGE);
MyMessage tempMsg(TEMP_ID, V_TEMP);
MyMessage vdirMsg(VDIR_ID, V_VAR1); 
MyMessage hdirMsg(HDIR_ID, V_VAR2); 

IRSenderPWM irSender(3);       // IR led on Arduino digital pin 3, using Arduino PWM

HeatpumpIR *heatpumpIR = new PanasonicNKEHeatpumpIR();

//Some global variables to hold the states
int POWER_STATE;
int TEMP_STATE;
int FAN_STATE;
int MODE_STATE;

void setup()  
{  
  gw.begin(incomingMessage, AUTO, false);

  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Heatpump", "1.0");

  // Register all sensors to gw (they will be created as child devices)
  gw.present(POWER_ID, S_BINARY);
  gw.present(MODE_ID, S_HVAC);
  gw.present(FAN_ID, S_HVAC);
  gw.present(TEMP_ID, S_HVAC);
  gw.present(VDIR_ID, S_CUSTOM);
  gw.present(HDIR_ID, S_CUSTOM);
     
  // Load our values on start
  POWER_STATE = gw.loadState(POWER_ID);
  TEMP_STATE = gw.loadState(TEMP_ID);
  FAN_STATE = gw.loadState(FAN_ID);
  MODE_STATE = gw.loadState(MODE_ID);
  
  sendHeatpumpCommand();
}

void loop() {
  gw.process();
} 

void handlePowerMessage(bool newState) {
  if (newState) {
    POWER_STATE = POWER_ON;
  }
  else {
    POWER_STATE = POWER_OFF;
  }
  gw.saveState(POWER_ID, newState);
}

void handleModeMessge(int newMode) {
  switch(newMode) {    
    case 0:
      MODE_STATE = MODE_HEAT; break;
    case 1:
      MODE_STATE = MODE_COOL; break;
    case 2:
      MODE_STATE = MODE_AUTO; break;
    case 3:
      MODE_STATE = MODE_FAN; break;
     case 4:
      MODE_STATE = MODE_DRY; break;
  }
  MODE_STATE = newMode;
  gw.saveState(MODE_ID, newMode);
}

void handleFanMessage(int newFan) {
  if (newFan > 5) newFan=5;
  switch(newFan) {
    case 0:
      FAN_STATE = FAN_AUTO; break;
    case 1:
      FAN_STATE = FAN_1; break;
    case 2:
      FAN_STATE = FAN_2; break;
    case 3:
      FAN_STATE = FAN_3; break;
    case 4:
      FAN_STATE = FAN_4; break;
    case 5:
      FAN_STATE = FAN_5; break;
    default:
      FAN_STATE = FAN_AUTO; break;
  }
  FAN_STATE = newFan;
  gw.saveState(FAN_ID, newFan);
}

void handleTempMessage(int newTemp) {
  TEMP_STATE = newTemp;
  gw.saveState(TEMP_ID, newTemp);
}

void sendHeatpumpCommand() {
  Serial.println("Power = " + (String)POWER_STATE);
  Serial.println("Mode = " + (String)MODE_STATE);
  Serial.println("Fan = " + (String)FAN_STATE);
  Serial.println("Temp = " + (String)TEMP_STATE);
  heatpumpIR->send(irSender, POWER_STATE, MODE_STATE, FAN_STATE, TEMP_STATE, VDIR_AUTO, HDIR_AUTO);
}
void incomingMessage(const MyMessage &message) {
  // We only expect one type of message from controller. But we better check anyway.
  if (message.isAck()) {
     Serial.println("This is an ack from gateway");
  }
   Serial.print("Incoming change for sensor:");
   Serial.print(message.sensor);
   Serial.print(", New status: ");
   Serial.println(message.getBool());

   switch(message.sensor) {
    case POWER_ID: {
      bool newState = message.getBool();
      handlePowerMessage(newState);
      break;
    }
    case MODE_ID: {
      int newMode = message.getInt();
      handleModeMessge(newMode);
      break;
    }
    case FAN_ID: {
      int newFan = message.getInt();
      handleFanMessage(newFan);
      break;
    }
    case TEMP_ID: {
      int newTemp = message.getInt();
      handleTempMessage(newTemp);
      break;
    }
   }
  sendHeatpumpCommand();
}

Openhab items

Switch	Power_HeatPump	"Heatpump on/off" <aircon>
Number	Mode_HeatPump	"Heatpump mode"
Number	Fan_HeatPump	"Heatpump fan" <airing>
Number	Temp_HeatPump	"Heatpump temperature [%d C]"	<temperature>
String	VDir_HeatPump	"vertical"
String	HDir_HeatPump	"horizontal"

Openhab sitemap

sitemap heatpump label="Heatpump" {
  Frame {
    Switch item=Power_HeatPump
    Selection item=Mode_HeatPump mappings=[0="heat", 1="cool", 2="auto", 3="fan", 4="dry"]
    Selection item=Fan_HeatPump mappings=[0="auto", 1="Level 1", 2="Level 2", 3="Level 3", 4="Level 4", 5="Level 5"]
    Setpoint item=Temp_HeatPump minValue=10 maxValue=30 step=1
    Text item=VDir_HeatPump
    Text item=HDir_HeatPump
  }
}

Openhab rules

val org.eclipse.xtext.xbase.lib.Functions$Function4 numberOperation = [
    org.openhab.core.library.items.NumberItem numberItem, 
    org.openhab.core.library.items.StringItem arduinoItem, 
    String arduinoDevMap,
    Integer subType|
    logInfo("number", "Sending number message to mysensors node")
    var Integer state = numberItem.state
    logInfo("mysensors", "Function: numberOperation >> "+arduinoDevMap + "1;1;" + subType + ";" + state )
    arduinoItem.sendCommand(arduinoDevMap + "1;0;" + subType + ";" + state + "\n")
]

//switch function
val org.eclipse.xtext.xbase.lib.Functions$Function4 switchOperation = [
    org.openhab.core.library.items.SwitchItem relayItem, 
    org.openhab.core.library.items.StringItem arduinoItem, 
    String arduinoDevMap,
    Integer subType|
    logInfo("switch", "Sending switch message to mysensors node")
    
    var Integer state = 0
    if (relayItem.state == OFF) {
        state = 0 
    }
    else {
        state = 1
    }
    logInfo("mysensors", "Function: switchOperation >> "+arduinoDevMap + "1;1;" + subType + ";" + state )
    arduinoItem.sendCommand(arduinoDevMap + "1;0;" + subType + ";" + state + "\n")
]




rule "Heatpump on"
when
    Item Power_HeatPump received command
then
    switchOperation.apply(Power_HeatPump, MySensors_Gateway, sensorToItemsMap.get("Power_HeatPump"),  V_STATUS)         
end 

rule "Heatpump mode"
when
    Item Mode_HeatPump received update
then
    numberOperation.apply(Mode_HeatPump, MySensors_Gateway, sensorToItemsMap.get("Mode_HeatPump"),  V_VAR1)         
end 


rule "Heatpump temp"
when
    Item Temp_HeatPump received command
then
    numberOperation.apply(Temp_HeatPump, MySensors_Gateway, sensorToItemsMap.get("Temp_HeatPump"),  V_TEMP)         
end 

rule "heatpump fan"
when
    Item Fan_HeatPump received command
then
    numberOperation.apply(Fan_HeatPump, MySensors_Gateway, sensorToItemsMap.get("Fan_HeatPump"),  V_PERCENTAGE)         
end

SGi

@ToniA Hi, do you have a guide on how to set up Domoticz with this example? I understand enough about mysensors and domoticz to be dangerous but i dont get how Domoticz can send the right command....

ToniA

Take a look at this topic on the Domoticz forum: http://www.domoticz.com/forum/viewtopic.php?f=34&t=8751

bjacobse

@SGi
Hi,
I have created the wiki:
https://www.domoticz.com/wiki/AC_/_heatpumpIR

Everything is based in Toni's great effort :-)
I also first used the mysensors Arduino, but since I am still using "old" mysensors ver 1.5.4 (And currently I don't have time to upgrade to latest and greatest, which support text based commands)
Then I have taken same approach as Toni and use Wemos D1 Mini Pro that uses HTTP or MQTT wifi

moskovskiy82

@ToniA

Thanks for the library it's great. I can also confirm that it works with Fujitsu remote AR-REB1E out of the box.

Trying to integrate this into HomeAssistant and just do not know where to start. Is there any example how to post a whole string of commands for the air cond via mysensors-MQTT?

Heatpump controller

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