Anyone know of a quick and dirty way to sense which way a PCB is oriented (orientated, same deal.) Something that I might be able to make from my junk box?
I guess the old way might have been a mercury reed switch, but I don't have any of those. And I can't use 'em, anyway.
An accelerometer seems like overkill. I don't need intermediate angles, simply horizontal or vertical with respect to the "plane" of the earth's surface.
I vaguely remember seeing a bubble-level "switch", but haven't been able to re-find it. ...Jim Thompson
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I love to cook with wine. Sometimes I even put it in the food.
Look for tilt switch. Cant give a link, but there are still many around. Usually just a pair of contacts bridged by a caged ball. Simple, but work. The cheap variety of pedometers often use them.
I have zero experience with this, but would it be possible to get the sensor out of an old iPhone?
joe
Look on AliExpress. accelerometers are very inexpensive. The cheapest I found was $.65 for 2 including shipping.
Dan
That can be done as a tilt sensor with 3 electrodes wrapped around a bubble level in a capacitance bridge circuit. 2 electrodes could be used (VCO frequency) as a level/not level switch. Driving it at 1 MHz or so gives very high sensitivity. It could also be done optically.
-- Grizzly H.
Digikey lists 11 things they call tilt switches, the cheapest (by far) of which is 1.35 in small quantities.
That gives you one axis.
OTOH, they have a 3-axis analog out accelerometer for $2.34 in small quantity -- i.e., $0.78 per axis.
OTOH, if you don't mind digital, the price goes down to 98 cents, or around 33 cents/axis.
-- www.wescottdesign.com
Show it 2 pictures of naked PCBs, one male one female.
NT
LOL nice 1
Would something like this work?
I find I can sense which way PCBs are oriented simply by looking at them. No need to make anything.
Was there some other objective?
Maybe so! Cool, thanks!
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