Recently I noticed a thread on the group regarding a DSP filter designed
by Gareth Gi1MIC.? Although he primarily designed it to be fitted inside
an FT-817 he does say that it would operate perfectly as a stand alone
unit in a powered speaker.? I was very keen on this and (rather rashly
it seems) bought a Teensy to build one. The circuit is ridiculously
simple and I did not think that I would have any problems with it.?
HOWEVER, although he mentions an encoder control for setting the filter
centre frequency and some means of switching between filters, he gives
no details of how this should be done.? I have contacted Gareth to ask
for help but he seems uninterested and merely suggested that I learn
programming as it was all in the code.? At my advanced age learning to
programme is a daunting task (although I am trying).
Is there anyone on the group who could help me?
What I want is simply a means of selecting the various filters (probably
with push-buttons or a rotary switch) and a means of fitting an encoder
to select the filter centre frequency.
The link to the project is :-
David G4LDT
