Hello everyone, I'm a model engineer who needs your expert help.
I have a steam powered model boat and I am trying to design a system that monitors the water level in the boiler and tops it up as necessary.
I have designed a sensor that detects water in a sight glass. This sensor gives an output of 3v when water is detected and 2v when no water is detected. This output is fed to an opamp (LM358) which outputs either 5v or 0v.
I also have a servo driver which gives either full clockwise rotation or full anticlockwise rotation of a servo depending on position of SW1. The values of R3 and R4 determine the amount of rotation.
What I want to do is use the output of the sensor circuit to control the servo driver.
I would also like to have a time delay so that when the sensor output changes from +2 to +3 there is a delay of about 10 seconds before the output of LM358 changes from high to low.
Does anyone have any ideas how to combine these two circuits?
I have a steam powered model boat and I am trying to design a system that monitors the water level in the boiler and tops it up as necessary.
I have designed a sensor that detects water in a sight glass. This sensor gives an output of 3v when water is detected and 2v when no water is detected. This output is fed to an opamp (LM358) which outputs either 5v or 0v.
I also have a servo driver which gives either full clockwise rotation or full anticlockwise rotation of a servo depending on position of SW1. The values of R3 and R4 determine the amount of rotation.
What I want to do is use the output of the sensor circuit to control the servo driver.
I would also like to have a time delay so that when the sensor output changes from +2 to +3 there is a delay of about 10 seconds before the output of LM358 changes from high to low.
Does anyone have any ideas how to combine these two circuits?