4 ms·
I'm pretty sure the sensor for that is a simple reed switch.
by hamandcheese 1y ago
I'm pretty sure the sensor for that is a simple reed switch.
- OJFord 1y agoA reed switch (plus magnet and choice of location) would be an implementation of a 'fixed angle switch' per my comment above.
- vasco 1y agoIf 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 1y agoPresence 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.
- rzzzt 1y agoWhen 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)
- reaperducer 1y agoThey weren't sleeping. That's how Mac Minis are made.
- tesseract 1y agoMore 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)
- 0_____0 1y agoI 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 1y agoNice 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 1y agoAs 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.