phil99
 Guru
 Joined: 11/02/2018 Location: AustraliaPosts: 3321 |
| Posted: 08:30am 27 Sep 2022 |
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The problem is that OC is usually used when more than one active device is connected to the line. You don't want one active high while another is low. Only the pullup resistor should take the line high. |