Here is the circuit for the 30m LowPass filter that I am using with the Propeller Beacon, as documented in previous posts.
Click here to play with the Filter on-line. Note: Because it is on-line, that version my not appear exactly the same as shown here, I am editing it while still playing.
|The Simulation Results|
I like the software, but it indicates that I may need to work on the circuit. a little :-(