motor controller

[orlyver chan]

Hello guys, i need to have a motor controller for 12 volts dc motor, heres the operation- there are two buttons which needed to be push alternately, one after another, then the motor will run in stop and run mode (pulsating), but if the two buttons will be pressed and hold the motor will not move, or any of the two buttons if pressed and hold the motor will not run, therefore the two buttons must be pressed alternately, and the motor will run in pulsating movement (stop and go). 

[orlyver chan]

thanks to all respondents

[orlyver chan]

ive tried using relays, and it works, the motor runs in stop and go mode (pulsating), BUT the problem is, it has no force to pull even a lighter weight load (my motor can actually pull 230 grams even if the load has no rollers), ive tried another approach by using both relays and monostable mode LM555 timer, and it works, BUT another problem is- the motors pull the load in a very fast movement. What do i really need is a slow pulsating (stop and go) movement by pressing two push button alternately

[Ashutosh Bhatt]

you have to use PWM to control speed of DC motor. by controlling speed you can slow down the speed of load

[orlyver chan]

Hello good day, thank you for your response, ive decide to use mechanical controls for the forward movement by using gears, pulley, lever, etc. and im going to use PWM controller for the reverse (reset). Thanks

[Ashutosh Bhatt]

ok well done

post the result when done successfully

[Author]

Posts