Here is what i am trying to do i want to turn a dc pump on and off faster then 1 second intervals. Basically this is being used to create waves in a reef tank. I have found people doing this with three wire tunze pumps but i have a 2 wire resun. I have built 2 types and they have both failed. I don't know if it is because the pump draws 1.5 amps and is 24 v dc.
Is there a good article or better yet a video on how the 555 timers work? I see people making leds flash with them so i should be able to get this pump to turn on and of right? The first one i built was this but could not get it to work i am not sure where my positive and negitive in and out go.**broken link removed**
I use to play more with electronics back in high school and would like to get back in to them and get my son in to them as well.
Is there a good article or better yet a video on how the 555 timers work? I see people making leds flash with them so i should be able to get this pump to turn on and of right? The first one i built was this but could not get it to work i am not sure where my positive and negitive in and out go.**broken link removed**
I use to play more with electronics back in high school and would like to get back in to them and get my son in to them as well.