https://github.com/djcopley/ralert

Get notified if someone is sneaking up the stairwell to your dorm room!
https://github.com/djcopley/ralert

Last synced: 8 months ago
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Get notified if someone is sneaking up the stairwell to your dorm room!

• Host: GitHub
• URL: https://github.com/djcopley/ralert
• Owner: djcopley
• License: gpl-3.0
• Created: 2018-09-16T00:52:21.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2022-09-11T05:33:32.000Z (over 3 years ago)
• Last Synced: 2025-04-03T12:57:32.948Z (9 months ago)
• Language: C++
• Size: 35.2 KB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# RAlert

After receiving a music noise complaint in my dorm, I set out to create a solution that would reduce the risk of getting another infraction. I lived on the third floor, with two outdoor stairwells being the only access points to my dorm. I created wirelessly connected, passive infrared detecting nodes and set them up inconspicuously in each stairwell. A "base station" attached via serial port to our music-playing laptop listened for regular updates from the stairwell. Upon detection, the base station would fire a music pause event and automatically alert us to the possible presence of an RA.

Bill of Materials:

1. Arduino microcontrollers

2. NRF24 wireless transceivers

3. Passive infrared sensors