hey everyone i am trying to build a cycle timer so i can turn a small aqaurium pump on and off on intervals between 1-15 minutes.
i did some looking around on the internet and came across this for a schematic... assuming some dude whipped it up quick......
problem is i assembled it and the current going to the relay doesnt stop, wiring for the flip flop is wrong, therefore not sending a signal to the relay. someone mind taking a quick look at this and give me an opinion
i took some pics of my board... a little messy.... resistor with the tape and green wire sticking out the top is the set value on the 4013 (i just jumped it using the diode with no wire) to the 4020 off timer
i did some looking around on the internet and came across this for a schematic... assuming some dude whipped it up quick......
problem is i assembled it and the current going to the relay doesnt stop, wiring for the flip flop is wrong, therefore not sending a signal to the relay. someone mind taking a quick look at this and give me an opinion
i took some pics of my board... a little messy.... resistor with the tape and green wire sticking out the top is the set value on the 4013 (i just jumped it using the diode with no wire) to the 4020 off timer