Weight sensor/ Load Sensor anyone?

[viguera]

Someone did something similar with a pressure pad wired to a door sensor. It’s relatively easy and inexpensive.

You can find pictures of the projects, parts and custom code in this thread:

United security pressure mat

I wrote a custom device call pressure mat that is the same as the door device but with new icon and message for stepped on and empty. Then I wrote a smart app that does something when stepped on, which is reverse logic from the existing built in open door app. I then took a picture of my mat and used it to override the icon so it looks like a mat. The device code is: /** * Z-Wave Pressure Mat Sensor * * Author: SmartThings - edited by KW * Date: 2013-11-3 */ // for the UI metadata { // Automatically generated. Make future change here. definition (name: "Z-Wave Pressure Mat Sensor", namespace: "kewashi", author: "Ken Washington") { capability "Contact Sensor" capability "Sensor" capability "Battery" capability "Configuration" fingerprint deviceId: "0x2001", inCluster…