Hi everyone,
I'm working on a servo motor control circuit using a 555 timer. I have the following circuit (attach the schematic if possible). When I remove the button connected to the 68k resistor, the servo moves to 180° but does not return to 0°.
What I want to achieve:
When I press the button once, the servo should move to 180°.
It should stay in that position for 1-2 seconds.
Then, it should automatically return to 0° without pressing the button again.
I cannot use an Arduino, so I need a fully analog solution.
How can I achieve this using a 555 timer or additional components? Should I use a monostable, bistable, or another approach?
Any suggestions would be greatly appreciated.
shows one astable '555 changing the frequncy of a second astable '555. If you understand the '555, you should be able to use a monostable as the first.
Then it's down to the timing constants of each.
At a certain point you may like to look into microprocessors.
After 1 year, you should able to describe at least HOW it did not work, don't you think?
I mean, what do you expect the people here to do? You could have made any mistake , possibly easy to fix, but there is no way to find out what it could be without any hints. Are you expecting people to come up with completely new solutions each time something does not work for any reason, just because you cannot be bothered to find out WHY the previous one did not work?
I think this is a catch 22 situation. The output of a 555 timer is digital. The hobby servo is controlled by a special case of PWM, which is a digital signal. The output of a pushbutton is either ON or OFF and that is digital. So you can't do this without using digital!
