I bought some of those stepper motors you linked above. Really cheap, small with a gearbox, but be aware they are wired so you cannot use them with a standard stepper driver module. These have five...
I was considering laying a limit switch flat along the outer edge of the disk, and use a notch to catch the limit switch roller. But I'm liking the hall sensor even more:
- no...
if there is any ambient light leakage a ir sensor like SEN-19018 would be better than a photo diode, with the bonus of making
led modulation unnecessary too.
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NE555 with solenoid
I'd like to activate a solenoid for a brief moment. Does this timer look correct?
Demon Today, 01:389978
- I added a large cap alongside the solenoid; value is just preliminary.
- the opto is to isolate the...