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Can't get encoder outputs working with FIT0487 - they're open drain, right?

userHead Kevin.Wible 2023-09-12 05:37:15 220 Views2 Replies

I am running an FIT0487 at 6V (motor is turning), and the Encoder at 3.3V (green LED is lighting up).

 

I assume that Encoder outputs are open drain, so have them pulled up to 3.3V with 10Kohm resistor.

 

But I'm not getting any pulses.  I've checked the wiring 3X.  Not sure what else to try.  Any suggestions?

 

 

2023-09-12 10:42:38

OK, thank you for sharing.

 userHeadPic Tonny12138
2023-09-12 05:54:35

Never mind.  Found it.  Scope probe had an open in it.

 userHeadPic Kevin.Wible
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p.name Micro Metal Geared motor w/Encoder - 6V 41RPM 380:1 FIT0487