/diy/ - Do It Yourself

Anonymous Sat Jan 4 10:43:20 2020 No.1745330 [View]
File: 26 KB, 1243x575, Circuit2.png [View same] [iqdb] [saucenao] [google]

>>1745287
Okay, new schematic. The ULN2804A has a 10.5k internal resistor for a 6-15V CMOS input. So driving it direct with the 4013 is okay, yes?
I assume I could drive it directly with my 12V source as well but if I need a resistor between U1-Q and SW1-2, and assuming a 1k resistor, the resulting 1/10.5 voltage divider won't matter for the ULN2804 input?
SW1 is a DIP switch. SW2 is a momentary button for a human to push.
>>1745312
I added a capacitor for you.

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