Prius.central
New Member
Hi
Built this slosh filter ,thanks to post Mike Al.
My scope shows it is working but it will not run my fuel gauge.
I think it was designed to run a digital gauge .
My stepper motor gauge must need to pass some current to earth to work.
I was thinking of using a 555 timer to make a pulse width modulated signal from the slosh filter output, to drive a transistor to earth the gauge.
the output changes between 0.48v to 1.2v empty to full.
I not sure how to wire it up or what parts to use.
there lots of diagrams of pots connected to 555 timers but I only have my one output wire ,not sure what to do with the other 555 pins
Many thanks
Built this slosh filter ,thanks to post Mike Al.
My scope shows it is working but it will not run my fuel gauge.
I think it was designed to run a digital gauge .
My stepper motor gauge must need to pass some current to earth to work.
I was thinking of using a 555 timer to make a pulse width modulated signal from the slosh filter output, to drive a transistor to earth the gauge.
the output changes between 0.48v to 1.2v empty to full.
I not sure how to wire it up or what parts to use.
there lots of diagrams of pots connected to 555 timers but I only have my one output wire ,not sure what to do with the other 555 pins
Many thanks
Last edited: