Automatic Toilet Flusher

[Bruce]

Funny that should work. Here's a few things to check.

Make sure you're using a separate power supply for your servo, and you have a common ground between them. Running a servo from your controller power supply can cause problems if you aren't using a hefty bench type power supply with a lot of filtering to remove motor noise.

Make sure you're using the correct voltage for your servo. These normally run on 4.8 to 6V. If you're trying to operate your servo from 9V that may be a problem. Most hobby type servos can't handle 9V, and a 5V control pulse from the PIC is going to look pretty weak to a servo operating at 9V.

I tested the above code example, and it works as expected with a Hitec HS311 servo operating at 5V with a 16F627. Note some servos will move 90 degrees right or left, so you can tweak the value in the Flush routine between 200 to 250 to extend the rotation range.

My HS311 moves full right with 250, and centers with 150.

[Techbuilder]

Funny that should work. Here's a few things to check.

Make sure you're using a separate power supply for your servo, and you have a common ground between them. Running a servo from your controller power supply can cause problems if you aren't using a hefty bench type power supply with a lot of filtering to remove motor noise.

Yep I am using a separate power supply for both and each is filtered

Make sure you're using the correct voltage for your servo. These normally run on 4.8 to 6V. If you're trying to operate your servo from 9V that may be a problem. Most hobby type servos can't handle 9V, and a 5V control pulse from the PIC is going to look pretty weak to a servo operating at 9V.

Yep I used 5volts and I even tried it with 6

I tested the above code example, and it works as expected with a Hitec HS311 servo operating at 5V with a 16F627. Note some servos will move 90 degrees right or left, so you can tweak the value in the Flush routine between 200 to 250 to extend the rotation range.

My HS311 moves full right with 250, and centers with 150.

I am using a hi-tec HS-322HD

And I used another servo which was a futaba S3003
but it was modified for continues rotation but it was rotating in 90% degree section
but that was when it was not in contact but when it was in contact it didn't move just like the hs-322HD

[mackrackit]

but that was when it was not in contact but when it was in contact it didn't move just like the hs-322HD

You mean in contact with the handle? If so, maybe the servo is not strong enough?

[Techbuilder]

You mean in contact with the handle? If so, maybe the servo is not strong enough?

No contact with the IR led


Although I figured out that I have to modify the servo to do 180 degrees
because mine only does 60 degrees, still doesn't explain why it is only going off when it is not in contact with the IR led.

[Techbuilder]

Actually if I spin it by hand it spins enough
so I don't believe that's the problem.