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jvoermans / Vibration_Logger

Logger to measure sea ice vibrations
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add magnetic on off switching #33

Closed jerabaul29 closed 3 years ago

jerabaul29 commented 3 years ago

Setting power on off may (with low probability) corrupt data. Would be better to have a switch for putting on / off. We could probably use a magnetic switch for that (though a classical switch would be ok too when the box gets opened anyways to recover the SD card). What do you think @jvoermans ? (Adafruit and sparkfun both have similar parts, possible to order from whoever we like best)

Magnetic switch:

Classical switch

(it looks funky with diode etc, but actually may be convenient to have a visual signal)

jvoermans commented 3 years ago

Yes, I was thinking of just a regular switch. It is better to disconnect the electronics from power supply before uncoupling. Magnetic switches are cool, but you'll need to have some indication whether turned on/off (LED or bluetooth). For now I guess mechanical switch is more straightforward...

jerabaul29 commented 3 years ago

Do you still have plans to put a mechanical switch? :)

jvoermans commented 3 years ago

I purchased this one, just a simple one. I think the specs are fine right?

https://www.jaycar.com.au/spst-standard-toggle-switch/p/ST0570

jerabaul29 commented 3 years ago

Yes, should be plenty :) .

Closing this then.