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  • Author Author: electronichamsters
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Did I remember to close the diaper wipe box?

electronichamsters
  1. [INDEX]
  2. Introduction and project description
  3. Sensor Node and Gateway Design
  4. How I use OpenHAB - audio notification and dashboards
  5. Design detail for wireless sensor nodes and gateway
  6. Uber Sensor - wireless sensor for fire, smoke, gas, barking, light, movement
  7. Diaper Box Sensor
  8. Laundry Room Sensor

 

The small size and energy harvesting capability means it fits in small places, like the diaper wipe box.  We’re always forgetting to close the diaper wipe box and it dries out.  The EnOcean reed switch sensor is great for monitoring if the top is left opened too long.  And you can use OpenHAB on the Pi to remind you to close it.

 

image

image

 

OpenHAB Item Definition:

Contact itm_baby_wipe "Baby Wipe [%s]" <contact> (All) {enocean="{id=01:81:3C:A4, eep=D5:00:01, parameter=CONTACT_STATE"}

 

OpenHAB Sitemap - though not really needed unless you want to remotely view diaper box status image

T

ext item=itm_baby_wipe

 

OpenHAB Rule - this is where the timer is used to determine when to alarm.  Adjust timer length to whatever you want.

var Timer door_timer = null
var boolean door_left_open = false
var boolean door_first_time = false

rule "baby wipes"
when
    Item itm_baby_wipe changed
then
        if (door_timer != null)
                door_timer.cancel()
        if (itm_baby_wipe.state == OPEN)
                {
                door_left_open = true
                door_timer = createTimer(now.plusSeconds(60)) [|
                        say("Baby Wipe Door Left Opened")
                        door_first_time = true
                ]
    } else {
        door_left_open = false
        door_first_time = false
    }
end


rule "Check every 2 minutes"
when
    Time cron "0 0/2 * * * ?"
then
    if ((door_left_open == true) && (door_first_time == true) {
        say("Door still left open")
    }
end


If someone could tell me how to put the code in those nice code blocks like the other people in this competition, I'd appreciate it!  Thanks Mark!

 

Also, thanks very much to Kimmo for helping me with my EnOcean issues earlier.

  • Eric

    If someone could tell me how to put the code in those nice code blocks like the other people in this competition, I'd appreciate it!

    Its a bit cryptic

    image

    Click on the >> and you'll get a choice.

    image

    Not sure what the others have chosen but try one or two.

     

    be warned that sometimes this highlighting thinks the text is Excel and try's to put it into rows and columns.

     

    Mark