By integrating with the Amazon Dash Replenishment Service, this weight sensor has the ability to help you in ordering another of whatever device you wish.
How does it work?1. You plug in the device to a wall outlet and login via the device to your wifi.
2. Using the web interface (accessible through your own home network) you enter in two weights (notification weight & purchase weight)
3. You copy and paste the amazon url for the item (or search for the item) that you would like it to automatically purchase.
4. You place a box or container of the item on the device and flip on the "detect weight" switch. Continue usage as regular (and no need to worry about picking up the box or container to grab an item out of it, it only triggers warnings after it notices the change has lasted for over 1 hour).
It uses the "notification weight" to notify the user that is beginning to run low and the "purchase weight" to trigger the purchase of a new order of the item.
How to build it?There are 3 main components
1. A server/website that connects and relays messages between Amazon and your hub.
2. A hub that is built from a raspberry pi that allows separate devices to communicate
3. A platform built from weight sensors and a microcontroller
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