Band pass filter

[ghost]

You mention in your things you'd like to do - making a band pass filter.

I'm curious to know how would you do that?

thanks

[zst123]

Thanks for asking. Right now the project transmits a square wave with many harmonics. And in this case, I am only using the 9th harmonics which alights with the channel 3 frequency. This means that the project also transmits many other harmonics that I am not using. These extra harmonics may cause interference and I want to use a band pass filter to remove these extra harmonics I am not using.

However I have not tried it yet because I am very weak in my knowledge of filters. If you have any suggestions please let me know. 🙂