Most of my hardware builds are on hackster.io and most of them were created as part of one of their contests. Here are a few highlights.
This is a project to monitor temperature/air quality in my room over time.
This is a project to control LEDs in my room over WiFi.
Backpack Alarm is a hardware device that arms your backpack with an alarm.
Wireless Magnetic Data Transfer was a project I did to see whether you could transmit data using magnetic fields.
Mindful Monkey Wire Game was a project I created for Maker Faire Bay Area 2017.