Hi
I need to make a small and cheap pulse generator for a project of mine.
I would need a pin which hast to be approximately 30sec on low and 1sec on high whitch controls a mosfet that acts like a relay and lets trough 5volts to activate something else.
I did some reshearch for the 555 chip and it seems to me that you can get only like 1:1 ratio between high and low.
I know i can make this with an arduino but i would like to make something cheaper and smaller.
I attached a picture which shows what kind of impulse would i like to have. (approx. 30 sec low 1sec high)
and it would be even better if i could make the low time variable.
sorry in advance if i said something silly but i'm not an electrical engineer nor am i a native english speaker
Kind regards
I need to make a small and cheap pulse generator for a project of mine.
I would need a pin which hast to be approximately 30sec on low and 1sec on high whitch controls a mosfet that acts like a relay and lets trough 5volts to activate something else.
I did some reshearch for the 555 chip and it seems to me that you can get only like 1:1 ratio between high and low.
I know i can make this with an arduino but i would like to make something cheaper and smaller.
I attached a picture which shows what kind of impulse would i like to have. (approx. 30 sec low 1sec high)
and it would be even better if i could make the low time variable.
sorry in advance if i said something silly but i'm not an electrical engineer nor am i a native english speaker
Kind regards