Hello Circuits Forum people, Im using a 555 timer to control a small 12v motor. The motor moves a rod from an up to a down position, and the goal is to allow the user to change the height at which the rod stops. The time it takes the rod to travel from top to bottom is about 1.5 seconds.
So far here is what Ive done:
I purchased a pre-assembled velleman 555 timer circuit and replaced the pulse trimmer with a 5k potentiometer. I then turned the pause trimmer to the max-about 60 seconds. This gave me the 0-1.5 second time interval I was looking for. The circuit works well, but I'd like to make a few changes to the pre-assembled version.
What I need help with:
The velleman mk111 kit is set up for astable operation it has a pulse trimmer and a pause trimmer. I want to use the mk111 kit, but set it up for monostable operation. I want the circuit to pulse once and then stop until 12v is applied to the motor again.
Background:
Im mechanically inclined, but have little to no experience with electrical engineering. I can solder and assemble a circuit, but I cannot read a circuit diagram very well (or... at all). It all kind of looks like jibberish to me, and after a while I feel like Im reading Russian.
Ive done a good deal of research on the subject, but can't figure out what I'd need to do to make the mk111 circuit work the way I want it to.
I would be eternally grateful if someone could give me instructions possibly with pictures on how to use the velleman mk11 kit but remove the pause trimmer and set it up for monostable operation. I can post circuit diagrams and pictures if needed.
Thanks in advance!
Informative website on 555 timers that I've been using
http://users.telenet.be/augurk/MK111/mk111c.jpg
^very large image of the circuit in question
So far here is what Ive done:
I purchased a pre-assembled velleman 555 timer circuit and replaced the pulse trimmer with a 5k potentiometer. I then turned the pause trimmer to the max-about 60 seconds. This gave me the 0-1.5 second time interval I was looking for. The circuit works well, but I'd like to make a few changes to the pre-assembled version.
What I need help with:
The velleman mk111 kit is set up for astable operation it has a pulse trimmer and a pause trimmer. I want to use the mk111 kit, but set it up for monostable operation. I want the circuit to pulse once and then stop until 12v is applied to the motor again.
Background:
Im mechanically inclined, but have little to no experience with electrical engineering. I can solder and assemble a circuit, but I cannot read a circuit diagram very well (or... at all). It all kind of looks like jibberish to me, and after a while I feel like Im reading Russian.
Ive done a good deal of research on the subject, but can't figure out what I'd need to do to make the mk111 circuit work the way I want it to.
I would be eternally grateful if someone could give me instructions possibly with pictures on how to use the velleman mk11 kit but remove the pause trimmer and set it up for monostable operation. I can post circuit diagrams and pictures if needed.
Thanks in advance!
Informative website on 555 timers that I've been using
http://users.telenet.be/augurk/MK111/mk111c.jpg
^very large image of the circuit in question