Heatpump controller

[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?

[moskovskiy82]

So nobody is using it this with MQTT gateway?

[gohan]

@bjacobse if I have a new Daikin heat pump with a newer remote that is not in the library, I guess I'm out of luck, right?

[bjacobse]

@moskovskiy82
hi, I'm not using the MQTT with mysensors
I think you should direct your questions to a HomeAssistant forum.
My setup uses Wemos D1 Mini Pro and Domoticz

[bjacobse]

@gohan
Please use the github for heatpump to ask you question, as I assume that Toni mostly is checking that. It seems that there 2 different Daikin heatpumps supported

https://github.com/ToniA/arduino-heatpumpir

[moskovskiy82]

@bjacobse Can you elaborate a little more on how you wired things up?
Also how you combined the libs and compiled everything for easyESP?
Have a sonoff with easyESP and docs are not that clear how to that stuff

[bjacobse]

@moskovskiy82
I took 5v from the heatpump, mine is an IVT, I took it from the Ir receive, soldered 2wires, one GND and on for 5V and drilled a hole on the plastic casing, and then I had power for the Wemos D1 Mini Pro module.
Then 100 Ohm resister in series with the Irda LED 940nm Ir LED, connected to GPio16/D0 on the Wemos module.

Downlaod the ESPEASYT files + download Tonis heatpump /P115 lib and put it in same Arduino IDE, compile it all together

http://www.domoticz.com/wiki/AC_/_heatpumpIR

[Ispandy]

I want to make heatpumpIR, but after trying to send the signal using simple.ino sketch to my Sharp A/C nothing happened. Confused where to start ....

[bjacobse]

@Ispandy
did you look at the previous comment?
to make it easy for you, then don't use mysensors with Arduino for this, it's too difficult to setup, but instead use the Wemos and ESPEASY using your WIFI

http://www.domoticz.com/wiki/AC_/_heatpumpIR

[moskovskiy82]

@bjacobse There is nothing difficult in setting it up. Just connect the irda to the 3rd PWM leg

[bjacobse]

@moskovskiy82
I certainly agree, I assume your comment actually was meant to Ispandy ;-)