Timeline for Detect car +12V using Arduino
Current License: CC BY-SA 3.0
4 events
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Jun 24, 2013 at 15:25 | comment | added | John U | It's not in that circuit, but if you replace the diode in the OP's circuit with a Zener it will protect against over-voltage as well as reverse-voltage. | |
Jun 24, 2013 at 13:44 | comment | added | Phil Frost | Where's the reverse diode / zener you mention? I don't see any such thing in the schematic. | |
Jun 24, 2013 at 8:43 | history | edited | John U | CC BY-SA 3.0 |
added 331 characters in body
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Jun 24, 2013 at 8:28 | history | answered | John U | CC BY-SA 3.0 |