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    Posts made by algoritm

    • RE: [contest] Yet another servo blind control project

      @slarti Nice post with great pictures! We seem to have the same blinds in Sweden as well.

      posted in My Project
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      @hek The TP4056 is the charger module. I didn't know you meant the fuel gauge. They are two separate boards which I solder together to one part. 🙂

      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      @hek They are great and very cheap. Just make sure you get the latest version of the board (the one with the micro-usb). 10pcs for $7 on Ebay.

      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      I found this example file to work much better. The battery drained a lot slower.

        // Interrupt driven binary switch example with dual interrupts
        // Author: Patrick 'Anticimex' Fallberg
        // Connect one button or door/window reed switch between 
        // digitial I/O pin 3 (BUTTON_PIN below) and GND and the other
        // one in similar fashion on digital I/O pin 2.
        // This example is designed to fit Arduino Nano/Pro Mini
      
        // For lipo gauge
        #include "Arduino.h"
        #include "Wire.h"
        #include "MAX1704.h"
      
        MAX1704 fuelGauge;
        int oldBatteryPcnt = 0;
      
        #include <MySensor.h>
        #include <SPI.h>
      
        #define SKETCH_NAME "Binary Sensor"
        #define SKETCH_MAJOR_VER "1"
        #define SKETCH_MINOR_VER "0"
      
        #define PRIMARY_CHILD_ID 3
        #define SECONDARY_CHILD_ID 4
      
        #define PRIMARY_BUTTON_PIN 2   // Arduino Digital I/O pin for button/reed switch
        #define SECONDARY_BUTTON_PIN 3 // Arduino Digital I/O pin for button/reed switch
      
        #if (PRIMARY_BUTTON_PIN < 2 || PRIMARY_BUTTON_PIN > 3)
        #error PRIMARY_BUTTON_PIN must be either 2 or 3 for interrupts to work
        #endif
        #if (SECONDARY_BUTTON_PIN < 2 || SECONDARY_BUTTON_PIN > 3)
        #error SECONDARY_BUTTON_PIN must be either 2 or 3 for interrupts to work
        #endif
        #if (PRIMARY_BUTTON_PIN == SECONDARY_BUTTON_PIN)
        #error PRIMARY_BUTTON_PIN and BUTTON_PIN2 cannot be the same
        #endif
        #if (PRIMARY_CHILD_ID == SECONDARY_CHILD_ID)
        #error PRIMARY_CHILD_ID and SECONDARY_CHILD_ID cannot be the same
        #endif
         
        MySensor sensor_node;
      
        // Change to V_LIGHT if you use S_LIGHT in presentation below
        MyMessage msg(PRIMARY_CHILD_ID, V_TRIPPED);
        MyMessage msg2(SECONDARY_CHILD_ID, V_TRIPPED);
      
        void setup()  
        {  
          sensor_node.begin();
      
          // Setup the buttons
          pinMode(PRIMARY_BUTTON_PIN, INPUT);
          pinMode(SECONDARY_BUTTON_PIN, INPUT);
      
          // Activate internal pull-ups
          digitalWrite(PRIMARY_BUTTON_PIN, HIGH);
          digitalWrite(SECONDARY_BUTTON_PIN, HIGH);
          
          // Send the sketch version information to the gateway and Controller
          sensor_node.sendSketchInfo(SKETCH_NAME, SKETCH_MAJOR_VER"."SKETCH_MINOR_VER);
      
          // Register binary input sensor to sensor_node (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.
          sensor_node.present(PRIMARY_CHILD_ID, S_DOOR);  
          sensor_node.present(SECONDARY_CHILD_ID, S_DOOR);  
        }
      
        // Loop will iterate on changes on the BUTTON_PINs
        void loop() 
        {
          uint8_t value;
          static uint8_t sentValue=2;
          static uint8_t sentValue2=2;
      
          // Short delay to allow buttons to properly settle
          sensor_node.sleep(5);
          
          value = digitalRead(PRIMARY_BUTTON_PIN);
          
          if (value != sentValue) {
             // Value has changed from last transmission, send the updated value
             sensor_node.send(msg.set(value==HIGH ? 1 : 0));
             sentValue = value;
          }
      
          value = digitalRead(SECONDARY_BUTTON_PIN);
          
          if (value != sentValue2) {
             // Value has changed from last transmission, send the updated value
             sensor_node.send(msg2.set(value==HIGH ? 1 : 0));
             sentValue2 = value;
          }
          
          // Fuel gauge
          int batteryPcnt = fuelGauge.stateOfCharge();
          if (oldBatteryPcnt != batteryPcnt) 
          {
             sensor_node.sendBatteryLevel(batteryPcnt);
             oldBatteryPcnt = batteryPcnt;
           }
         
          // Sleep until something happens with the sensor
          sensor_node.sleep(PRIMARY_BUTTON_PIN-2, CHANGE, SECONDARY_BUTTON_PIN-2, CHANGE, 0);
        }
      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      Here's the finished script.

        #include <MySensor.h>
        #include <SPI.h>
        // For lipo gauge
        #include "Arduino.h"
        #include "Wire.h"
        #include "MAX1704.h"
      
        #define DOOR_ID 3
        #define MAILBOX_ID 2
      
        #define DOOR_PIN  3  // Arduino Digital I/O pin for button/reed switch
        #define MAILBOX_PIN 2
        //
        MAX1704 fuelGauge;
        int oldBatteryPcnt = 0;
        //
        MySensor gw;
        byte oldValue[2] = { -1, -1};
        //
        unsigned long sleepTime = 86400000UL; // 1 day
      
        // Change to V_LIGHT if you use S_LIGHT in presentation below
        //MyMessage msg(DOOR_PIN,V_TRIPPED);
      
        MyMessage msg[2];
      
        void setup()  
        {  
          // Fuel gauge
          fuelGauge.reset();
          fuelGauge.quickStart();
          fuelGauge.showConfig();
          //
          gw.begin();
          
          // Setup the buttons and Activate internal pull-ups
          pinMode(DOOR_PIN,INPUT_PULLUP);
          pinMode(MAILBOX_PIN, INPUT_PULLUP);
      
          // Set sensor (pin)
          msg[0].setSensor(DOOR_ID);
          msg[1].setSensor(MAILBOX_ID);
      
          // Set sensor (type)
          msg[0].setType(V_TRIPPED);
          msg[1].setType(V_TRIPPED);
          
          
          gw.present(DOOR_ID, S_DOOR);
          gw.present(MAILBOX_ID, S_DOOR);
        }
        //
        void loop() 
        {
          // Fuel gauge
          int batteryPcnt = fuelGauge.stateOfCharge();
          if (oldBatteryPcnt != batteryPcnt) 
          {
             gw.sendBatteryLevel(batteryPcnt);
             oldBatteryPcnt = batteryPcnt;
           }
           //
          for (byte i = 0; i < 2; i++)
          {
            debouncer[i].update();
            int value = debouncer[i].read();
            
            //if (value != oldValue[i]);  
            gw.send(msg[i].set(value == HIGH? 1 : 0), false); 
            oldValue[i] = value;
             
          }
          gw.sleep(DOOR_PIN - 2, CHANGE, MAILBOX_PIN - 2, CHANGE, sleepTime);
        }
      posted in Development
      algoritm
      algoritm
    • RE: Raspberry Pi Ethernet Gateway

      Tried EasyIoT server @ericvdb? Not my project, but I'm using it now. Simple to set up and use. Just make sure that you use the correct channel for your server and your nodes. Default is set to 95.

      http://iot-playground.com/download

      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      @BulldogLowell Thank you! It finally works! I'll make a sketch with comments so other people can use it later for reference.

      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      @BulldogLowell said:

      MyMessage msg(0,V_TRIPPED);

      So I need to call MyMessage twice. one for each sensor ID? How do I do that without making two instances? That is kind of what I have been trying to do, but I'm having trouble with the syntax.

      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      The problem remains @BulldogLowell . It's like the arduino is treating the two interrupts as one.

      The sensors react when trigger them, but it's only N2S1 (door) that shows up in my gateway (EasyIoT), and it always displays the same value (closed). I'm going to go over the wiring and the code again.

      Reading one sensor connected to one interrupt is simple... reading two seems impossible 🙂

      Here's the current state of the sketch:

      // Simple binary switch example 
      //USING TWO INTERRUPTS
      //
      #include <MySensor.h>
      #include <SPI.h>
      #include <Bounce2.h>
      // For lipo gauge
      #include "Arduino.h"
      #include "Wire.h"
      #include "MAX1704.h"
      //
      #define DOOR_PIN  3  // Arduino Digital I/O pin for button/reed switch
      #define MAILBOX_PIN 2
      //
      MAX1704 fuelGauge;
      int oldBatteryPcnt = 0;
      //
      MySensor gw;
      Bounce debouncer[2];
      byte oldValue[2] = { -1, -1};
      //
      unsigned long sleepTime = 86400000UL; // 1 day
      
      // Change to V_LIGHT if you use S_LIGHT in presentation below
      MyMessage msg(0,V_TRIPPED);
      //
      void setup()  
      {  
        // Fuel gauge
        fuelGauge.reset();
        
        // GW
        gw.begin();
        debouncer[0] = Bounce();
        debouncer[1] = Bounce();
        // Setup the buttons and Activate internal pull-ups
        pinMode(DOOR_PIN,INPUT_PULLUP);
        pinMode(MAILBOX_PIN, INPUT_PULLUP);
        //
        debouncer[0].attach(DOOR_PIN);
        debouncer[1].attach(MAILBOX_PIN);
        debouncer[0].interval(5);
        debouncer[1].interval(5);
        //
        gw.present(DOOR_PIN - 2, S_DOOR);
        delay(250);
        gw.present(MAILBOX_PIN - 2, S_DOOR);
      }
      //
      void loop() 
      {
        // Fuel gauge
        int batteryPcnt = fuelGauge.stateOfCharge();
        if (oldBatteryPcnt != batteryPcnt) 
        {
           gw.sendBatteryLevel(batteryPcnt);
           oldBatteryPcnt = batteryPcnt;
         }
         //
        for (byte i = 0; i < 2; i++)
        {
          debouncer[i].update();
          int value = debouncer[i].read();
          if (value != oldValue[i]);
          gw.send(msg.setSensor(i).set(value == HIGH? 1 : 0), false); 
          oldValue[i] = value; 
        }
        gw.sleep(DOOR_PIN - 2, CHANGE, MAILBOX_PIN - 2, CHANGE, sleepTime);
      }
      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      Thanks again @BulldogLowell 🙂

      I think I'm going a bit crazy over this. The problem remains. Only the data for the door is being sent (it only sends closed), but not for the mailbox. Is it because I am defining only the door in the code below?

       MyMessage msg(DOOR_PIN,V_TRIPPED);
      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      Thanks @BulldogLowell for all your help! The interrupts are working now, but there is something wrong with the MyMessage function.

      MyMessage msg(DOOR_PIN,V_TRIPPED);
      

      Correct me if I am wrong, but it seems like we only instantiate it for the DOOR_PIN, but not for the MAILBOX_PIN. I tried a solution similar to how you instantiate the the bounce functions, but for some reason it does not work.

      What happens now is only one message gets sent (for the door). And it's also saying that it is always closed.

      gw.send(msg.setSensor(i).set(value == HIGH? 1 : 0), false); 
      

      I can see here that you use the setSensor method to the pin numbers 0 and 1 (interrupt pins?). But shouldn't it use the pins that we declare at the top?

       #define DOOR_PIN  3  // Arduino Digital I/O pin for button/reed switch
       #define MAILBOX_PIN 2
      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      Thank you @hek! I will try and solve it now, and then show my sketch here later.

      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      Thanks for the help @BulldogLowell!

      I read your code, and I can see that you are setting the variables smarter than I. However, I can't seem to understand where you put the interrupts. Is the sensor going to sleep?

      The actual button/triggers were not the problem. It was how to set up the interrupts.

      posted in Development
      algoritm
      algoritm
    • RE: Multiple interuppts: One Arduino with two door sensors?

      @ericvdb It's a USB charger board (TP4056). The battery is connected to it via a MAX17043 LiPo Fuel Gauge which is soldered directoly onto the usb charger board.

      posted in Development
      algoritm
      algoritm
    • Multiple interuppts: One Arduino with two door sensors?

      I've been looking around the forum for a solution, but haven't found one. I have one arduino and two door/window sensors. One sensor will be on my apartments front door, while the other sensor will sit on the mailbox-slot.

      The problem is that I don't know how to get two interrupts running at the same time. So if the door opens, one interrupt should trigger. And if I get mail (and the slot opens) the second interrupt should trigger.

      I'm using an arduino pro mini 328p.

      Here's my code:

      #include <MySensor.h>
      #include <SPI.h>
      #include <Bounce2.h>
      
      #define CHILD_ID_DOOR 0
      #define CHILD_ID_MAIL 1
      #define DOOR_PIN  2  // Arduino Digital I/O pin for button/reed switch
      #define MAIL_PIN  3  // Arduino Digital I/O pin for button/reed switch
      
      #define INTERRUPT DOOR_PIN-2 
      #define INTERRUPTMAIL_PIN-3 
      
      // For lipo gauge
      #include "Arduino.h"
      #include "Wire.h"
      #include "MAX1704.h"
      
      MAX1704 fuelGauge;
      int oldBatteryPcnt = 0;
      
      
      unsigned long SLEEP_TIME = 86400000; // 1 day
      
      
      MySensor gw;
      Bounce debouncer_door = Bounce(); 
      Bounce debouncer_mail = Bounce(); 
      int oldValue_door = -1;
      int oldValue_mail = -1;
      
      // Change to V_LIGHT if you use S_LIGHT in presentation below
      MyMessage msgDoor(CHILD_ID_DOOR,V_TRIPPED);
      MyMessage msgMail(CHILD_ID_MAIL,V_TRIPPED);
      
      void setup()  
      {  
        // Fuel gague
        fuelGauge.reset();
        fuelGauge.quickStart();
        fuelGauge.showConfig();
        
        gw.begin();
      
        // Setup the button
        pinMode(DOOR_PIN,INPUT);
        // Activate internal pull-up
        digitalWrite(DOOR_PIN,HIGH);
        
        pinMode(MAIL_PIN,INPUT);
        // Activate internal pull-up
        digitalWrite(MAIL_PIN,HIGH);
        
        // After setting up the button, setup debouncer
        debouncer_door.attach(DOOR_PIN);
        debouncer_door.interval(5);
        
        debouncer_mail.attach(DOOR_PIN);
        debouncer_mail.interval(5);
        
        // 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_DOOR, S_DOOR);
        gw.present(CHILD_ID_MAIL, S_DOOR);  
      }
      
      
      //  Check if digital input has changed and send in new value
      void loop() 
      {
        
        // Fuel gauge
        int batteryPcnt = fuelGauge.stateOfCharge();
        
        if (oldBatteryPcnt != batteryPcnt) {
           // Power up radio after sleep
           gw.sendBatteryLevel(batteryPcnt);
           oldBatteryPcnt = batteryPcnt;
         }
        
        // Door
        debouncer_door.update();
        // Get the update value
        int value_door = debouncer_door.read();
       
        if (value_door != oldValue_door) {
           // Send in the new value
           gw.send(msgDoor.set(value_door==HIGH ? 1 : 0));
           oldValue_door = value_door;
        }
        
        // Mail
        debouncer_mail.update();
        // Get the update value
        int value_mail = debouncer_mail.read();
       
        if (value_mail != oldValue_mail) {
           // Send in the new value
           gw.send(msgMail.set(value_mail==HIGH ? 1 : 0));
           oldValue_mail = value_mail;
        }
        
        gw.sleep(INTERRUPT,CHANGE, SLEEP_TIME);
      }
      

      I'm a bit proud to have built this into a small enclosure. Here's a photo 🙂

      2015-01-08 12.08.54.jpg

      posted in Development
      algoritm
      algoritm