| ▲ | hamandcheese 7 days ago |
| I'm pretty sure the sensor for that is a simple reed switch. |
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| ▲ | OJFord 7 days ago | parent | next [-] |
| A reed switch (plus magnet and choice of location) would be an implementation of a 'fixed angle switch' per my comment above. |
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| ▲ | vasco 6 days ago | parent [-] | | If you approach something metalic to the top of the base in the left side of most macbooks you can feel where the magnet is. They either have both systems or maybe they switched this recently. | | |
| ▲ | OJFord 5 days ago | parent [-] | | Presence of a magnet doesn't imply presence of a reed switch - are you sure that's not just to give it some resistance to opening for example? Or angle sensing could be implemented with a magnet and Hall effect sensor. |
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| ▲ | tesseract 7 days ago | parent | prev | next [-] |
| More likely a hall effect sensor, which is solid state and a lot smaller. And yes, older MacBooks had something like that, as evidenced by the fact you could put them to sleep by holding a magnet in the right place (just to the left of the trackpad IIRC in the models I'm familiar with) |
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| ▲ | 0_____0 6 days ago | parent [-] | | I pranked a coworker once by sticking a magnet to his desk somehow to get his macbook to sleep when his computer was in a certain spot. | | |
| ▲ | rafaelmn 6 days ago | parent [-] | | Nice one ! Curious since I know almost nothing about HW - do magnets screw with computer HW otherwise ? I would guess no since we don't use HDD anymore but not sure. | | |
| ▲ | Johnbot 6 days ago | parent [-] | | As far as I know, even HDDs were pretty resilient to magnets when in their enclosures. I once took a large magnet meant for holding together concrete forms, one strong enough that it stuck to a ferrous surface it could probably support my weight, and stuck it to a hard drive for a full year to see if it'd break. The drive, as well as all of the data on it, were fine. |
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| ▲ | rzzzt 7 days ago | parent | prev [-] |
| When I ran a MacBook Pro in closed clamshell mode and put another laptop on top of it, it went to sleep. Must be a weight sensor in there as well. (/s) |
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