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Hi all, this is my second instructable. I made this because I needed a motion sensor for my LED POV (Persistence Of Vision) project. It's used to detect when there's a change in the waving direction so that your POV display doesn't get inverted. There are plenty of great POV projects in Instructables, look it up!
Aside from using it in a POV device, you can also use it as a general purpose tilt sensor. The sensor is equivalent to two SPST (single-pole, single-throw) switch or a DPST (double-pole, single-throw) switch where only one pair of contacts is closed at any one time.
A metal ball bearing completes the electrical path between a pair of pins on either end of the tube. That's as simple as it gets.
Aside from using it in a POV device, you can also use it as a general purpose tilt sensor. The sensor is equivalent to two SPST (single-pole, single-throw) switch or a DPST (double-pole, single-throw) switch where only one pair of contacts is closed at any one time.
A metal ball bearing completes the electrical path between a pair of pins on either end of the tube. That's as simple as it gets.
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Signing UpStep 1Tools & materials
Tools:
- Long nose plier
- Wire cutter
- Utility knife
- File
- Rotary tool with grinding bits
Materials
- Super glue
- Double-row, right-angled PCB header
- Metal ball bearing (must be large enough so that it won't slip between the PCB headers)
- Ink tube from a pen (must be large enough so that the ball bearing can freely slide inside it)
- Long nose plier
- Wire cutter
- Utility knife
- File
- Rotary tool with grinding bits
Materials
- Super glue
- Double-row, right-angled PCB header
- Metal ball bearing (must be large enough so that it won't slip between the PCB headers)
- Ink tube from a pen (must be large enough so that the ball bearing can freely slide inside it)
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I need a very simple and very small tilt sensor for an upcoming project, so thank you so much again.
Is your dad Macgyver?
Simply Brilliant