Doorbell hack

[msebbe]

@hek said:

Guess you'll also have to send/restore the tripped value after some time?

Yes, that would be ideal. First problem for me is how to change tripped value without using the actual magnetic sensor..

[msebbe]

This post is deleted!

[msebbe]

Below is my working sketch. Could somebody help clean it up? I made this sketch by combining two sketches and removing some parts from each.

/*


 this is set up for a 4 pin recv unit GND DATA DATA VCC
 plug GND into D2, DATA into D3 and D4, and VCC into D5
*/

#include <MySensor.h>
#include <SPI.h>
#include <Bounce2.h>
#include <RCSwitch.h>
RCSwitch mySwitch = RCSwitch();

#define CHILD_ID 3
#define VCC_PIN 5 // source 5V up to 40mA from this pin
#define GND_PIN 2 // sink up to 40mA on this pin
#define DATA_PIN 3 // external int 1 on Uno

MySensor gw;
int oldValue = -1;
int bell = -251;     // This is the value that my 433mhz doorbell sends out when button is pushed

// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()
{
  gw.begin();

  // Register binary input sensor to gw (they will be created as child devices)
  // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
  // If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
  gw.present(CHILD_ID, S_DOOR);

  // 433mhz Part
  pinMode(DATA_PIN, INPUT);
  // just leave D4 tristated

  pinMode(GND_PIN, OUTPUT);
  digitalWrite(GND_PIN, LOW);

  pinMode(VCC_PIN, OUTPUT);
  digitalWrite(VCC_PIN, HIGH);


  mySwitch.enableReceive(1);  // Receiver on interrupt 1 => that is pin D3

}

static unsigned long count = 0;

void loop()
{
  if (mySwitch.available()) {

    int value = mySwitch.getReceivedValue(); // This is where 433mhz signal are recieved
    if (value == bell) {
    // Send in the new value
    gw.send(msg.set("1"));  // Gives doorbell status tripped
    
    
    delay(5000);
    gw.send(msg.set("0"));  // Gives doorbell status not tripped
  }

    mySwitch.resetAvailable();
    count = 0;
  }
  else {
    if (++count == 0) Serial.println("no activity");
  }

  
}

[BulldogLowell]

not tested, but I'd look to do it like this... with non-blocking code in case of a second press of the doorbell within the 5second timeout:

/*
 this is set up for a 4 pin recv unit GND DATA DATA VCC
 plug GND into D2, DATA into D3 and D4, and VCC into D5
*/

#include <MySensor.h>
#include <SPI.h>
#include <Bounce2.h>
#include <RCSwitch.h>
RCSwitch mySwitch = RCSwitch();

#define CHILD_ID 3
#define VCC_PIN 5 // source 5V up to 40mA from this pin
#define GND_PIN 2 // sink up to 40mA on this pin
#define DATA_PIN 3 // external int 1 on Uno

MySensor gw;
const int bell = -251;     // This is the value that my 433mhz doorbell sends out when button is pushed
boolean tripped = false;
// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()
{
  gw.begin();

  // Register binary input sensor to gw (they will be created as child devices)
  // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
  // If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
  gw.present(CHILD_ID, S_DOOR);
  // 433mhz Part
  pinMode(DATA_PIN, INPUT);
  // just leave D4 tristated
  pinMode(GND_PIN, OUTPUT);
  digitalWrite(GND_PIN, LOW);
  pinMode(VCC_PIN, OUTPUT);
  digitalWrite(VCC_PIN, HIGH);
  mySwitch.enableReceive(1);  // Receiver on interrupt 1 => that is pin D3
}

void loop()
{
  if (mySwitch.available())
  {
    tripped = (mySwitch.getReceivedValue() == bell);
    if (tripped)
    {
      gw.send(msg.set("1"));
      timerStart = millis();
      Serial.println(F("Ding Dong!!"));
    }
    mySwitch.resetAvailable();  //<<<<<<<<<< I think you want this here... I looked at the library on GitHub
  }
  if (tripped && millis() - timerStart > 5000UL)
  {
    gw.send(msg.set("0"));
    Serial.println(F("no activity"));
    tripped = false;
  }
}

again, I could not test it...

[msebbe]

@BulldogLowell said:

not tested, but I'd look to do it like this... with non-blocking code in case of a second press of the doorbell within the 5second timeout:

/*
 this is set up for a 4 pin recv unit GND DATA DATA VCC
 plug GND into D2, DATA into D3 and D4, and VCC into D5
*/

#include <MySensor.h>
#include <SPI.h>
#include <Bounce2.h>
#include <RCSwitch.h>
RCSwitch mySwitch = RCSwitch();

#define CHILD_ID 3
#define VCC_PIN 5 // source 5V up to 40mA from this pin
#define GND_PIN 2 // sink up to 40mA on this pin
#define DATA_PIN 3 // external int 1 on Uno

MySensor gw;
const int bell = -251;     // This is the value that my 433mhz doorbell sends out when button is pushed
boolean tripped = false;
// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()
{
  gw.begin();

  // Register binary input sensor to gw (they will be created as child devices)
  // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
  // If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
  gw.present(CHILD_ID, S_DOOR);
  // 433mhz Part
  pinMode(DATA_PIN, INPUT);
  // just leave D4 tristated
  pinMode(GND_PIN, OUTPUT);
  digitalWrite(GND_PIN, LOW);
  pinMode(VCC_PIN, OUTPUT);
  digitalWrite(VCC_PIN, HIGH);
  mySwitch.enableReceive(1);  // Receiver on interrupt 1 => that is pin D3
}

void loop()
{
  if (mySwitch.available())
  {
    tripped = (mySwitch.getReceivedValue() == bell);
    if (tripped)
    {
      gw.send(msg.set("1"));
      timerStart = millis();
      Serial.println(F("Ding Dong!!"));
    }
  }
  if (tripped && millis() - timerStart > 5000UL)
  {
    gw.send(msg.set("0"));
    Serial.println(F("no activity"));
    tripped = false;
  }
  mySwitch.resetAvailable();// i am not familiar with your library, so I'm not sure where this would go... or if you even need it with the non-blocking code.
}

again, I could not test it...

Thank you! Looks much better. I will test later today when its not 31 celsius outside :)

[BulldogLowell]

@msebbe

OK, I reviewed the arduino library and it looks like mySwitch.resetAvailable(); belonged higher in the code, so I edited it. You may want to be wary of that.

[msebbe]

@BulldogLowell said:

@msebbe

OK, I reviewed the arduino library and it looks like mySwitch.resetAvailable(); belonged higher in the code, so I edited it. You may want to be wary of that.

Ok thanks for your effort :+1:

When compiling I get this error below. I think this should be quiet easy to fix but I dont understand this language yet :confused:

sketch_jul03a.ino: In function 'void loop()':
sketch_jul03a:49: error: 'timerStart' was not declared in this scope
sketch_jul03a:54: error: 'timerStart' was not declared in this scope
'timerStart' was not declared in this scope

[BulldogLowell]

@msebbe

try inserting:

unsigned long timerStart;

to the header in the next line following:

boolean tripped = false;

[msebbe]

@BulldogLowell said:

unsigned long timerStart;

Thanks that worked, however nothing happends when I test by using the door bell. I will investigate this when I get home on monday and stick to my old sketch until then .

[BulldogLowell]

and you cn try this:

/*
 this is set up for a 4 pin recv unit GND DATA DATA VCC
 plug GND into D2, DATA into D3 and D4, and VCC into D5
*/

#include <MySensor.h>
#include <SPI.h>
#include <Bounce2.h>
#include <RCSwitch.h>
RCSwitch mySwitch = RCSwitch();

#define CHILD_ID 3
#define VCC_PIN 5 // source 5V up to 40mA from this pin
#define GND_PIN 2 // sink up to 40mA on this pin
#define DATA_PIN 3 // external int 1 on Uno

MySensor gw;
const int bell = -251;     // This is the value that my 433mhz doorbell sends out when button is pushed
boolean tripped = false;
unsigned long timerStart;
// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()
{
  gw.begin();

  // Register binary input sensor to gw (they will be created as child devices)
  // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
  // If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
  gw.present(CHILD_ID, S_DOOR);
  // 433mhz Part
  pinMode(DATA_PIN, INPUT);
  // just leave D4 tristated
  pinMode(GND_PIN, OUTPUT);
  digitalWrite(GND_PIN, LOW);
  pinMode(VCC_PIN, OUTPUT);
  digitalWrite(VCC_PIN, HIGH);
  mySwitch.enableReceive(1);  // Receiver on interrupt 1 => that is pin D3
}

void loop()
{
  if (mySwitch.available())
  {
    tripped = (mySwitch.getReceivedValue() == bell);
    if (tripped)
    {
      gw.send(msg.set(true));
      timerStart = millis();
      Serial.println(F("Ding Dong!!"));
    }
    mySwitch.resetAvailable();  //<<<<<<<<<< I think you want this here... I looked at the library on GitHub
  }
  if (tripped && millis() - timerStart > 5000UL)
  {
    gw.send(msg.set(false));
    Serial.println(F("no activity"));
    tripped = false;
  }
}

[msebbe]

@BulldogLowell said:

and you cn try this:

/*
 this is set up for a 4 pin recv unit GND DATA DATA VCC
 plug GND into D2, DATA into D3 and D4, and VCC into D5
*/

#include <MySensor.h>
#include <SPI.h>
#include <Bounce2.h>
#include <RCSwitch.h>
RCSwitch mySwitch = RCSwitch();

#define CHILD_ID 3
#define VCC_PIN 5 // source 5V up to 40mA from this pin
#define GND_PIN 2 // sink up to 40mA on this pin
#define DATA_PIN 3 // external int 1 on Uno

MySensor gw;
const int bell = -251;     // This is the value that my 433mhz doorbell sends out when button is pushed
boolean tripped = false;
unsigned long timerStart;
// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()
{
  gw.begin();

  // Register binary input sensor to gw (they will be created as child devices)
  // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
  // If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
  gw.present(CHILD_ID, S_DOOR);
  // 433mhz Part
  pinMode(DATA_PIN, INPUT);
  // just leave D4 tristated
  pinMode(GND_PIN, OUTPUT);
  digitalWrite(GND_PIN, LOW);
  pinMode(VCC_PIN, OUTPUT);
  digitalWrite(VCC_PIN, HIGH);
  mySwitch.enableReceive(1);  // Receiver on interrupt 1 => that is pin D3
}

void loop()
{
  if (mySwitch.available())
  {
    tripped = (mySwitch.getReceivedValue() == bell);
    if (tripped)
    {
      gw.send(msg.set(true));
      timerStart = millis();
      Serial.println(F("Ding Dong!!"));
    }
    mySwitch.resetAvailable();  //<<<<<<<<<< I think you want this here... I looked at the library on GitHub
  }
  if (tripped && millis() - timerStart > 5000UL)
  {
    gw.send(msg.set(false));
    Serial.println(F("no activity"));
    tripped = false;
  }
}

Hmm, still nothing. It seems to be the 433mhz reciver part that is not working.