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/diy/ - Do It Yourself

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>> No.1236988 [View]
File: 9 KB, 564x433, 3 sensors 2 inputs.png [View same] [iqdb] [saucenao] [google]
1236988

So I want to connect two switches and a photo transistor (SFH 309) to two inputs. I made myself a truth table to warp my head around it and came up with a circuit.
Do I need the diode I drew in red to make sure the marked row in the table is correct?

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