Setting It Up

First, identify an appropriate spot to place the pressure plate. Most parcel delivery companies drop off packages at a resident’s front door, just off to the left or right side so as not to block the entrance. To help guide to placement of the packages, you can leave a note or sign for the courier to specifically drop boxes on the designated rectangular pressure plate we built for the project.

Better yet, use or build a container with a lid and place the sensor-embedded plate on the bottom of the container. You can purchase inexpensive, sturdy, water-resistant containers that also act as large seats when the top lid is down. With a little extra work, you can place the Arduino and XBee radio in a hard-shelled, waterproof enclosure ...

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