Spectrum Analyzer Filter

nice board.. excelent coust. rep. black is deathly for anti open hardware.. because the track hard to trace (clone).. but dont worry.. i and my friend willing to share this project design.. because this need improv and development more better design for example the header connector must be align precisely with display board (project nomer 22) and earlier controller that i order with project number 10. so dont hesistate to make improv at this (bebe) design.. tell to me when you succesfully..build this spectrum analizer. i got the scheme from somewhere over internet. my plan in 2018 i must have in AVR (atmega) version.. I would be greatfully amazing if someone share the design .. lets meet at sharedproject on pcbway. give your votr rate score and suggestion comment. well am i i write many words here? i hope i got point or bean.. then i will buy the pcbway ruller. and i share to my friend.. enjoy and taste high quality product . any question pleace comment ay my shared project on pcbway. many information can get over internet web but if you can specific put your design in pcbway i would be nice to all of community member.. learn and taste cool technology. happyly evelly after.