How-To: Ball-In-Cage Switch

Craft & Design Gardening

Sean Ragan just put up a tutorial for this simple analog tamper-detecting switch for guarding his garden over on Make: Projects:

This clever mechanical switch remains open so long as it is balanced in an upright position. But disturb it in any way, and the ball falls against the bars of the cage and closes the circuit. Use it to control an alarm to protect your valuables, or to trigger a camera to photograph wildlife.

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Becky Stern is a Content Creator at Autodesk/Instructables, and part time faculty at New York’s School of Visual Arts Products of Design grad program. Making and sharing are her two biggest passions, and she's created hundreds of free online DIY tutorials and videos, mostly about technology and its intersection with crafts. Find her @bekathwia on YouTube/Twitter/Instagram.

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