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  3. Automatic LED light - high WAF inside :)

Automatic LED light - high WAF inside :)

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  • ben999B ben999

    Hi guys

    Could you please comment on this :

    bool tripped = digitalRead(PIN_MOTION) == HIGH;
    if ( tripped =! prevTripped ) {     //only send data when there is a change
      send(msgMotion.set(tripped ? "1" : "0")); // Send tripped value to gw
      prevTripped = tripped;
      }
    

    Goal is to send update to gateway when state of PIR sensor changes
    Trouble is that node sends state of sensor every cycle and floods karaf console...
    Any clue ?
    Also can anyone explain this

    bool tripped = digitalRead(PIN_MOTION) == HIGH;
    

    I dont quite understand.... read, store, and compare... all at once?

    Thanks a lot for your help

    Cheers

    B Offline
    B Offline
    billgoolsby
    wrote on last edited by
    #7

    @ben999,
    As for your last question, this line is simply converting the pin state (either HIGH or LOW) to a boolean. The right side expression evaluates to a boolean that is true when the pin is HIGH. This is assigned to the boolean variable "tripped". This makes it logically easy to use in the following IF statement.

    First question: I'm not sure why it would send every cycle. The logic of the IF statement seems correct, and since prevTripped is global, its state will be preserved between loops.

    ben999B 1 Reply Last reply
    0
    • ben999B ben999

      Hi guys

      A new project came on top of the others : ceiling light

      The wife kinda likes the idea behind MySensors and openHab, as home automation and security system
      But i had to hit hard to get it fully accepted. So here comes the "cat shaped ceiling light" !!!

      (0_1508911480537_IMG_6161[1].JPG
      (Ok I know, ceiling is not finished yet... it has to be spotless as this kind of light reveals everything...)
      LED strip is glued on the edge of the board, powered via a 12V power supply which is controlled via an OMRON SSR relay

      Some AutoCad and CNC later... :

      0_1508914575098_IMG_6156.JPG

      0_1508914588720_IMG_6157.JPG

      This is highly inspired by Aproxx's work
      https://www.openhardware.io/view/77/AC-DC-double-solid-state-relay-module

      What I want it to do :

      • switch on the light when motion (PIR sensor)
      • switch itself off with delay (PIR kind enough to do that as well)
      • measure room light level so as to switch light on only when needed
      • have 3 modes controlled via openHab : fully automatic, always ON, always OFF

      So far i have managed to create a 3-state selector in openhab with this:

      • ".items" file: String HouseMode "House Mode [%s]"
      • ".sitemap" file: Switch item=LightMode mappings=[ON=1, AUTO=2, OFF=1]

      0_1508920812417_IMG_6164.PNG

      Now I am having some trouble with the sketch...
      I guess I should be using S_CUSTOM and V_CUSTOM (instead of S_BINARY and V_STATUS) as the "LightMode" variable can take up to 3 states...
      How do i then retreive that value?

      void receive(const MyMessage &message)
      int lightMode = message.getInt();
      

      Thanks for your input and comments :)

      dbemowskD Offline
      dbemowskD Offline
      dbemowsk
      wrote on last edited by
      #8

      @ben999 Nice CNC work on the PCB.

      Vera Plus running UI7 with MySensors, Sonoffs and 1-Wire devices
      Visit my website for more Bits, Bytes and Ramblings from me: http://dan.bemowski.info/

      ben999B 1 Reply Last reply
      0
      • ben999B ben999

        Sorted :)

        It is probably a bad idea to send data to node while sleeping...

        Complete sketch for the record

        // Enable debug prints
        #define MY_DEBUG
        
        #define MY_RADIO_NRF24
        
        #define MY_PARENT_ID 0
        #define MY_NODE_ID 19
        
        #include <MySensors.h>
        
        // (Only input 2 and 3 generates interrupt!)
        #define PIN_MOTION 2      // Motion sensor input
        #define PIN_RELAY 5       // Omron relay output
        #define MOTION_ID 1       // Id of the motion sensor child
        #define RELAY_ID 2        // Id of the relay child
        
        int lightMode = 2;         // 0=OFF - 1=ON - 2=auto
        bool prevTripped = 0;          // previous state of motion sensor
        
        MyMessage msgMotion(MOTION_ID, V_TRIPPED);    // Initialize motion message
        
        void setup()
        {
          pinMode(PIN_MOTION, INPUT);
          delay(3000);  // wait for motion sensor voltage to stabilize
          pinMode(PIN_RELAY, OUTPUT);     // Then set relay pins in output mode
          digitalWrite(PIN_RELAY, LOW);  // Make sure relays are off when starting up
        }
        
        
        void presentation()
        {
          sendSketchInfo("Toilet Light", "27.10.2017");
          present(MOTION_ID, S_MOTION);
          present(RELAY_ID, S_CUSTOM);
        }
        
        
        void loop()
        {
        
          bool tripped = digitalRead(PIN_MOTION) == HIGH;
        
          if ( tripped =! prevTripped ) { //only send data when there is a change
            send(msgMotion.set(tripped ? "1" : "0")); // Send tripped value to gw
            prevTripped = tripped;
          }
        
          if ( lightMode == 0 ) {
            digitalWrite(PIN_RELAY, LOW);
          }
        
          if ( lightMode == 1 ) {
            digitalWrite(PIN_RELAY, HIGH);
          }
        
          if ( (tripped == 1) && ( lightMode == 2 ) )  {
            digitalWrite(PIN_RELAY, HIGH);
          }
        
          if ( (tripped == 0) && ( lightMode == 2 ) )  {
            digitalWrite(PIN_RELAY, LOW);
          }
        }
        
        
        void receive(const MyMessage &message)
        {
          if (message.type == V_VAR1) {
            lightMode = atoi(message.data);
          }
        }
        

        Thanks for reading ! Next project !!!

        dbemowskD Offline
        dbemowskD Offline
        dbemowsk
        wrote on last edited by
        #9

        @ben999 I would rewrite some of the logic in your code to shorten it up a bit. I would change this:

          if ( lightMode == 0 ) {
            digitalWrite(PIN_RELAY, LOW);
          }
        
          if ( lightMode == 1 ) {
            digitalWrite(PIN_RELAY, HIGH);
          }
        
          if ( (tripped == 1) && ( lightMode == 2 ) )  {
            digitalWrite(PIN_RELAY, HIGH);
          }
        
          if ( (tripped == 0) && ( lightMode == 2 ) )  {
            digitalWrite(PIN_RELAY, LOW);
          }
        

        To this:

          if ( ( (tripped == 1) && ( lightMode == 2 ) ) ||   lightMode == 1  )  {
            digitalWrite(PIN_RELAY, HIGH);
          }
        
          if ( ( (tripped == 0) && ( lightMode == 2 ) ) ||   lightMode == 0  )  {
            digitalWrite(PIN_RELAY, LOW);
          }
        

        Vera Plus running UI7 with MySensors, Sonoffs and 1-Wire devices
        Visit my website for more Bits, Bytes and Ramblings from me: http://dan.bemowski.info/

        ben999B 1 Reply Last reply
        0
        • dbemowskD dbemowsk

          @ben999 I would rewrite some of the logic in your code to shorten it up a bit. I would change this:

            if ( lightMode == 0 ) {
              digitalWrite(PIN_RELAY, LOW);
            }
          
            if ( lightMode == 1 ) {
              digitalWrite(PIN_RELAY, HIGH);
            }
          
            if ( (tripped == 1) && ( lightMode == 2 ) )  {
              digitalWrite(PIN_RELAY, HIGH);
            }
          
            if ( (tripped == 0) && ( lightMode == 2 ) )  {
              digitalWrite(PIN_RELAY, LOW);
            }
          

          To this:

            if ( ( (tripped == 1) && ( lightMode == 2 ) ) ||   lightMode == 1  )  {
              digitalWrite(PIN_RELAY, HIGH);
            }
          
            if ( ( (tripped == 0) && ( lightMode == 2 ) ) ||   lightMode == 0  )  {
              digitalWrite(PIN_RELAY, LOW);
            }
          
          ben999B Offline
          ben999B Offline
          ben999
          wrote on last edited by
          #10

          @dbemowsk thanks a lot :) i like that!

          Do you rekon that would "speed" things up? Not that i need more speed to switch that light on but would this simplify and shorten the sketch processing time?

          1 Reply Last reply
          0
          • B billgoolsby

            @ben999,
            As for your last question, this line is simply converting the pin state (either HIGH or LOW) to a boolean. The right side expression evaluates to a boolean that is true when the pin is HIGH. This is assigned to the boolean variable "tripped". This makes it logically easy to use in the following IF statement.

            First question: I'm not sure why it would send every cycle. The logic of the IF statement seems correct, and since prevTripped is global, its state will be preserved between loops.

            ben999B Offline
            ben999B Offline
            ben999
            wrote on last edited by
            #11

            @billgoolsby thanks a lot for your comments that make more sense now :)

            Trouble is that if sketch remains as above it doesn't get into the if ( tripped =! prevTripped ) loop (i have put Serial.print here and there and i never get to it)
            On top of that tripped stays locked on HIGH but light is off...

            Any clue? Sketch seems fine to you?

            Thanks for your time :)

            ben999B 1 Reply Last reply
            0
            • dbemowskD dbemowsk

              @ben999 Nice CNC work on the PCB.

              ben999B Offline
              ben999B Offline
              ben999
              wrote on last edited by
              #12

              @dbemowsk said in Automatic LED light - high WAF inside :):

              @ben999 Nice CNC work on the PCB.

              I have some neat little tools in my workshop:

              3x1.5m working area
              0_1510121225655_P1000290small.JPG

              500x300mm working area
              0_1510121707486_IMG_6233small.JPG

              dbemowskD 1 Reply Last reply
              0
              • ben999B ben999

                @dbemowsk said in Automatic LED light - high WAF inside :):

                @ben999 Nice CNC work on the PCB.

                I have some neat little tools in my workshop:

                3x1.5m working area
                0_1510121225655_P1000290small.JPG

                500x300mm working area
                0_1510121707486_IMG_6233small.JPG

                dbemowskD Offline
                dbemowskD Offline
                dbemowsk
                wrote on last edited by
                #13

                @ben999 OK, NO FAIR. Is the bottom one a laser cutter/engraver??

                Vera Plus running UI7 with MySensors, Sonoffs and 1-Wire devices
                Visit my website for more Bits, Bytes and Ramblings from me: http://dan.bemowski.info/

                ben999B 1 Reply Last reply
                0
                • dbemowskD dbemowsk

                  @ben999 OK, NO FAIR. Is the bottom one a laser cutter/engraver??

                  ben999B Offline
                  ben999B Offline
                  ben999
                  wrote on last edited by
                  #14

                  @dbemowsk :D i know i'm lucky to have all those toys handy

                  This is a 2.2kW spindle... other one is 13kW in case i need more :D

                  dbemowskD 1 Reply Last reply
                  0
                  • ben999B ben999

                    @dbemowsk :D i know i'm lucky to have all those toys handy

                    This is a 2.2kW spindle... other one is 13kW in case i need more :D

                    dbemowskD Offline
                    dbemowskD Offline
                    dbemowsk
                    wrote on last edited by
                    #15

                    @ben999 .oO{ JEALOUS }Oo.

                    Vera Plus running UI7 with MySensors, Sonoffs and 1-Wire devices
                    Visit my website for more Bits, Bytes and Ramblings from me: http://dan.bemowski.info/

                    1 Reply Last reply
                    0
                    • ben999B ben999

                      @billgoolsby thanks a lot for your comments that make more sense now :)

                      Trouble is that if sketch remains as above it doesn't get into the if ( tripped =! prevTripped ) loop (i have put Serial.print here and there and i never get to it)
                      On top of that tripped stays locked on HIGH but light is off...

                      Any clue? Sketch seems fine to you?

                      Thanks for your time :)

                      ben999B Offline
                      ben999B Offline
                      ben999
                      wrote on last edited by
                      #16

                      @ben999 just for the record... =! is wrong. Should have been !=
                      Makes quite a difference :(

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