{"id":104916,"date":"2021-08-11T08:57:27","date_gmt":"2021-08-11T02:57:27","guid":{"rendered":"http:\/\/rcl-radio.ru\/?p=104916"},"modified":"2022-01-08T01:44:09","modified_gmt":"2022-01-07T19:44:09","slug":"%d0%b0%d0%bd%d0%b0%d0%bb%d0%b8%d0%b7%d0%b0%d1%82%d0%be%d1%80-%d1%81%d0%bf%d0%b5%d0%ba%d1%82%d1%80%d0%b0-%d0%bd%d0%b0-led-%d0%bc%d0%b0%d1%82%d1%80%d0%b8%d1%86%d0%b5-4x8x8-max7219","status":"publish","type":"post","link":"http:\/\/rcl-radio.ru\/?p=104916","title":{"rendered":"\u0410\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440 \u0441\u043f\u0435\u043a\u0442\u0440\u0430 \u043d\u0430 LED \u043c\u0430\u0442\u0440\u0438\u0446\u0435 4x8x8 MAX7219"},"content":{"rendered":"

\"\"<\/a><\/p>\n

MAX7219 \u2014 \u0434\u0440\u0430\u0439\u0432\u0435\u0440 \u0432\u043e\u0441\u044c\u043c\u0438 \u0440\u0430\u0437\u0440\u044f\u0434\u043d\u043e\u0433\u043e \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0433\u043e LED \u0438\u043d\u0434\u0438\u043a\u0430\u0442\u043e\u0440\u0430 \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u043c. \u0414\u0440\u0430\u0439\u0432\u0435\u0440 \u043c\u043e\u0436\u0435\u0442 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0442\u044c \u0432\u043e\u0441\u0435\u043c\u044c\u044e \u0441\u0435\u043c\u0438\u0441\u0435\u0433\u043c\u0435\u043d\u0442\u043d\u044b\u043c\u0438 \u0438\u043d\u0434\u0438\u043a\u0430\u0442\u043e\u0440\u0430\u043c\u0438 \u0441 \u0442\u043e\u0447\u043a\u043e\u0439, \u043b\u0438\u0431\u043e \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e 64 \u0441\u0432\u0435\u0442\u043e\u0434\u0438\u043e\u0434\u0430\u043c\u0438 \u0432 LED \u043f\u0430\u043d\u0435\u043b\u044f\u0445 \u0441 \u043e\u0431\u0449\u0438\u043c \u043a\u0430\u0442\u043e\u0434\u043e\u043c.<\/p>\n

\u0414\u0440\u0430\u0439\u0432\u0435\u0440 MAX7219 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e \u0442\u0440\u0435\u0445\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0448\u0438\u043d\u0435 Microwire (3-Wire).\u00a0 \u0414\u0440\u0430\u0439\u0432\u0435\u0440 \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0442 \u043a\u0430\u0441\u043a\u0430\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u043e\u043b\u044c\u0448\u0438\u043c \u0447\u0438\u0441\u043b\u043e\u043c \u0438\u043d\u0434\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u0432. \u041a\u0430\u0436\u0434\u044b\u0439 \u0438\u0437 \u0440\u0430\u0437\u0440\u044f\u0434\u043e\u0432 \u0438\u043d\u0434\u0438\u043a\u0430\u0442\u043e\u0440\u0430 \u0438\u043c\u0435\u0435\u0442 \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u0443\u044e \u0430\u0434\u0440\u0435\u0441\u0430\u0446\u0438\u044e \u0438 \u0435\u0433\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u043e \u0431\u0435\u0437 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438 \u0432\u0441\u0435\u0433\u043e \u0438\u043d\u0434\u0438\u043a\u0430\u0442\u043e\u0440\u0430. \u0418\u0421 MAX7219 \u0442\u0430\u043a\u0436\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0442\u044c \u0440\u0435\u0436\u0438\u043c \u0434\u0435\u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u0430\u0436\u0434\u043e\u0433\u043e \u0440\u0430\u0437\u0440\u044f\u0434\u0430.<\/p>\n

\u041d\u0430 \u0431\u0430\u0437\u0435 \u043c\u0430\u0442\u0440\u0438\u0446\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f 4 \u043c\u043e\u0434\u0443\u043b\u044f \u043f\u043e 64 \u0441\u0432\u0435\u0442\u043e\u0434\u0438\u043e\u0434\u0430, \u043c\u043e\u0436\u043d\u043e \u0441\u043e\u0431\u0440\u0430\u0442\u044c \u0430\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440 \u0441\u043f\u0435\u043a\u0442\u0440\u0430 \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0433\u043e \u0441\u0438\u0433\u043d\u0430\u043b\u0430. \u041c\u0430\u0442\u0440\u0438\u0446\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u043f\u043b\u0430\u0442\u044b Arduino Nano (Atmega8, Atmega168, Atmega328), \u0437\u0432\u0443\u043a\u043e\u0432\u043e\u0439 \u0441\u0438\u0433\u043d\u0430\u043b \u043f\u043e\u0434\u0430\u0435\u0442\u0441\u044f \u043d\u0430 \u0432\u0445\u043e\u0434 \u04100 \u0447\u0435\u0440\u0435\u0437 \u043a\u043e\u043d\u0434\u0435\u043d\u0441\u0430\u0442\u043e\u0440 0.1 \u043c\u043a\u0424.<\/p>\n

\"\"<\/a><\/p>\n

\n

!!! \u041e\u0431\u0440\u0430\u0442\u0438\u0442\u0435 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435, \u0447\u0442\u043e \u043f\u0440\u0438 \u043f\u043e\u043b\u043d\u043e\u0439 \u044f\u0440\u043a\u043e\u0441\u0442\u0438 LED \u043c\u0430\u0442\u0440\u0438\u0446\u0430 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u044f\u0442\u044c \u0431\u043e\u043b\u0435\u0435 1,5 \u0410, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0434\u043b\u044f \u043f\u0438\u0442\u0430\u043d\u0438\u044f \u043c\u0430\u0442\u0440\u0438\u0446\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0439 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u043f\u0438\u0442\u0430\u043d\u0438\u044f 5 \u0412 \u0441 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u043c \u0442\u043e\u043a\u043e\u043c \u043d\u0435 \u043c\u0435\u043d\u0435\u0435 2 \u0410!!!<\/strong><\/p>\n<\/blockquote>\n

\"\"<\/a> \"\"<\/a><\/p>\n

<\/div>\n
\/\/\/\/\/\/\/\/\/\/ |PORT   |pin | Arduino <\/span>\r\n\/\/ MAX7219<\/span>\r\n#define CLK PD2 \/\/ | 4  | D2<\/span>\r\n#define CS  PD3 \/\/ | 5  | D3<\/span>\r\n#define DIN PD4 \/\/ | 6  | D4<\/span>\r\n\u00a0\r\n#define AUTO_GAIN 1        \/\/ \u0430\u0432\u0442\u043e\u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 \u043f\u043e \u0433\u0440\u043e\u043c\u043a\u043e\u0441\u0442\u0438<\/span>\r\n#define LOW_PASS 40        \/\/ \u043d\u0438\u0436\u043d\u0438\u0439 \u043f\u043e\u0440\u043e\u0433 \u0447\u0443\u0432\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0448\u0443\u043c\u043e\u0432 (\u043d\u0435\u0442 \u0441\u043a\u0430\u0447\u043a\u043e\u0432 \u043f\u0440\u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0438 \u0437\u0432\u0443\u043a\u0430)<\/span>\r\n#define DEF_GAIN 300       \/\/ \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u0440\u043e\u0433 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e <\/span>\r\n#define FHT_N 256          \/\/ \u0448\u0438\u0440\u0438\u043d\u0430 \u0441\u043f\u0435\u043a\u0442\u0440\u0430 \u04452<\/span>\r\n#define LOG_OUT 1<\/span>\r\n#define INPUT_GAIN 1.0 <\/span>\r\n#define BR 0               \/\/ \u044f\u0440\u043a\u043e\u0441\u0442\u044c<\/span>\r\n\u00a0\r\n#include <FHT.h>  \/\/ http:\/\/forum.rcl-radio.ru\/misc.php?action=pan_download&item=297&download=1<\/span>\r\nbyte posOffset[<\/span>32<\/span>]<\/span> = {<\/span>4<\/span>,5<\/span>,6<\/span>,7<\/span>,8<\/span>,9<\/span>,10<\/span>,11<\/span>,12<\/span>,13<\/span>,14<\/span>,15<\/span>,16<\/span>,17<\/span>,18<\/span>,19<\/span>,20<\/span>,21<\/span>,21<\/span>,22<\/span>,23<\/span>,24<\/span>,25<\/span>,26<\/span>,27<\/span>,28<\/span>,29<\/span>,30<\/span>,31<\/span>,32<\/span>,33<\/span>,34<\/span>}<\/span>;\r\n\u00a0\r\nint<\/span> i1;\r\nunsigned long data<\/span>[<\/span>32<\/span>]<\/span>;\r\nunsigned long data1,data2,data3,data4,data5,data6,data7,data8;\r\nbyte a[<\/span>32<\/span>]<\/span>;\r\nint<\/span> ur[<\/span>32<\/span>]<\/span>,urr[<\/span>32<\/span>]<\/span>;\r\nunsigned long gainTimer;\r\nint<\/span> gain_sp = DEF_GAIN; \r\nint<\/span> maxValue; \r\nint<\/span> maxValue_f;\r\nfloat k = 0.5<\/span>; \r\n\u00a0\r\n\u00a0\r\nvoid<\/span> setup(<\/span>)<\/span>{<\/span>\r\n   ADMUX  = 0b11000000; ADCSRA = 0b11010110;\r\n  DDRD |<\/span>= (<\/span>1<\/span> <<<\/span> DIN)<\/span> |<\/span> (<\/span>1<\/span> <<<\/span> CS)<\/span> |<\/span> (<\/span>1<\/span> <<<\/span> CLK)<\/span>;\r\n  max7219_L(<\/span>0x0F, 0<\/span>)<\/span>;\/\/ \u0442\u0435\u0441\u0442 \u0432\u044b\u043a\u043b.<\/span>\r\n  max7219_L(<\/span>0x0C, 0x01010101)<\/span>;\/\/ \u0432\u043a\u043b. \u0438\u043d\u0434\u0438\u043a.<\/span>\r\n  max7219_L(<\/span>0x0A, 0x01010101*<\/span>BR)<\/span>;\/\/ \u044f\u0440\u043a\u043e\u0441\u0442\u044c<\/span>\r\n  max7219_L(<\/span>0x09, 0<\/span>)<\/span>;\/\/ \u0434\u0435\u0448\u0438\u0444\u0440\u0430\u0442\u043e\u0440\u044b \u0432\u044b\u043a\u043b.<\/span>\r\n  max7219_L(<\/span>0x0B, 0x07070707)<\/span>;\/\/ \u043a\u043e\u043b-\u0432\u043e \u0440\u0430\u0437\u0440\u044f\u0434\u043e\u0432 <\/span>\r\n  }<\/span>\r\n\u00a0\r\nvoid<\/span> loop(<\/span>)<\/span>{<\/span>\r\n\u00a0\r\n  analyzeAudio(<\/span>)<\/span>;\r\n\u00a0\r\n      for<\/span> (<\/span>int<\/span> i = 0<\/span>; i <<\/span> FHT_N\/<\/span>2<\/span>; i++)<\/span> {<\/span>                     \r\n      if<\/span> (<\/span>fht_log_out[<\/span>i]<\/span> <<\/span> LOW_PASS)<\/span> fht_log_out[<\/span>i]<\/span> = 0<\/span>;\r\n      fht_log_out[<\/span>i]<\/span> = (<\/span>float)<\/span>fht_log_out[<\/span>i]<\/span> *<\/span> INPUT_GAIN;}<\/span>\r\n\u00a0\r\n       maxValue = 0<\/span>;\r\n      for<\/span> (<\/span>int<\/span> pos = 0<\/span>; pos <<\/span> 32<\/span>; pos++)<\/span> {<\/span>  \r\n        if<\/span> (<\/span>fht_log_out[<\/span>posOffset[<\/span>pos]<\/span>]<\/span> ><\/span> maxValue)<\/span> maxValue = fht_log_out[<\/span>posOffset[<\/span>pos]<\/span>]<\/span>;\r\n        int<\/span> posLevel = map(<\/span>fht_log_out[<\/span>posOffset[<\/span>pos]<\/span>]<\/span>, LOW_PASS, gain_sp, 0<\/span>, 8<\/span>)<\/span>;posLevel = constrain(<\/span>posLevel, 0<\/span>, 8<\/span>)<\/span>;\r\n\u00a0\r\n        urr[<\/span>pos]<\/span> = posLevel;\r\n        if<\/span>(<\/span>urr[<\/span>pos]<\/span><<\/span>ur[<\/span>pos]<\/span>)<\/span>{<\/span>ur[<\/span>pos]<\/span>=ur[<\/span>pos]<\/span>-1<\/span>;}<\/span>\r\n        else<\/span>{<\/span>ur[<\/span>pos]<\/span> = posLevel;}<\/span>\r\n        delayMicroseconds(<\/span>10<\/span>)<\/span>;\r\n\u00a0\r\n\u00a0\r\n  switch<\/span>(<\/span>ur[<\/span>pos]<\/span>)<\/span>{<\/span>\r\n    case<\/span> 0<\/span>: a[<\/span>pos]<\/span>=0b00000000;break<\/span>;\r\n    case<\/span> 1<\/span>: a[<\/span>pos]<\/span>=0b00000001;break<\/span>;\r\n    case<\/span> 2<\/span>: a[<\/span>pos]<\/span>=0b00000011;break<\/span>;\r\n    case<\/span> 3<\/span>: a[<\/span>pos]<\/span>=0b00000111;break<\/span>;\r\n    case<\/span> 4<\/span>: a[<\/span>pos]<\/span>=0b00001111;break<\/span>;\r\n    case<\/span> 5<\/span>: a[<\/span>pos]<\/span>=0b00011111;break<\/span>;\r\n    case<\/span> 6<\/span>: a[<\/span>pos]<\/span>=0b00111111;break<\/span>;\r\n    case<\/span> 7<\/span>: a[<\/span>pos]<\/span>=0b01111111;break<\/span>;\r\n    case<\/span> 8<\/span>: a[<\/span>pos]<\/span>=0b11111111;break<\/span>;\r\n    }<\/span>\r\n     data1 = data1 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 0<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n     data2 = data2 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 1<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n     data3 = data3 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 2<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n     data4 = data4 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 3<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n     data5 = data5 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 4<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n     data6 = data6 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 5<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n     data7 = data7 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 6<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n     data8 = data8 +  (<\/span>(<\/span>uint32_t(<\/span>a[<\/span>pos]<\/span> >><\/span> 7<\/span>)<\/span> &<\/span> 1<\/span>)<\/span><<<\/span>pos)<\/span>;\r\n      }<\/span>\r\n\u00a0\r\n max7219_L(<\/span>8<\/span>, data8 )<\/span>;\r\n max7219_L(<\/span>7<\/span>, data7  )<\/span>;\r\n max7219_L(<\/span>6<\/span>, data6  )<\/span>;\r\n max7219_L(<\/span>5<\/span>, data5  )<\/span>;\r\n max7219_L(<\/span>4<\/span>, data4  )<\/span>;\r\n max7219_L(<\/span>3<\/span>, data3  )<\/span>;\r\n max7219_L(<\/span>2<\/span>, data2  )<\/span>;\r\n max7219_L(<\/span>1<\/span>, data1  )<\/span>;\r\n  data1=0<\/span>;data2=0<\/span>;data3=0<\/span>;data4=0<\/span>;data5=0<\/span>;data6=0<\/span>;data7=0<\/span>;data8=0<\/span>;\r\n\u00a0\r\n\u00a0\r\n  if<\/span> (<\/span>AUTO_GAIN)<\/span> {<\/span>\r\n    if<\/span> (<\/span>millis(<\/span>)<\/span> - gainTimer ><\/span> 10<\/span>)<\/span> {<\/span>      \r\n      maxValue_f = maxValue *<\/span> k + maxValue_f *<\/span> (<\/span>1<\/span> - k)<\/span>;\r\n      if<\/span> (<\/span>maxValue_f ><\/span> LOW_PASS)<\/span> gain_sp = maxValue_f;\r\n       else<\/span> gain_sp = DEF_GAIN;\r\n       gainTimer = millis(<\/span>)<\/span>;}<\/span>}<\/span>\r\n    }<\/span>\r\n\u00a0\r\nvoid<\/span> max7219_L(<\/span>byte reg_n, unsigned long h)<\/span>{<\/span>\r\n  byte h1 = h >><\/span> 24<\/span>;\r\n  byte h2 = h >><\/span> 16<\/span>;\r\n  byte h3 = h >><\/span> 8<\/span>;\r\n  byte h4 = h;\r\n  PORTD &<\/span>=~(<\/span>1<\/span> <<<\/span> CS)<\/span>;WriteBit16(<\/span>reg_n,h1)<\/span>;WriteBit16(<\/span>reg_n,h2)<\/span>;WriteBit16(<\/span>reg_n,h3)<\/span>;WriteBit16(<\/span>reg_n,h4)<\/span>;PORTD |<\/span>=(<\/span>1<\/span> <<<\/span> CS)<\/span>;\r\n  }<\/span>   \r\n\u00a0\r\nvoid<\/span> WriteBit16(<\/span>byte reg, byte data<\/span>)<\/span>{<\/span>  \r\n     for<\/span>(<\/span>char i = 7<\/span>; i ><\/span>= 0<\/span>; i--)<\/span>{<\/span>\r\n        PORTD &<\/span>= ~(<\/span>1<\/span> <<<\/span> CLK)<\/span>;\r\n        if<\/span>(<\/span>(<\/span>(<\/span>reg >><\/span> i)<\/span> &<\/span> 1<\/span>)<\/span> == 1<\/span>)<\/span>{<\/span>PORTD |<\/span>= (<\/span>1<\/span> <<<\/span> DIN)<\/span>;}<\/span>else<\/span>{<\/span>PORTD &<\/span>= ~(<\/span>1<\/span> <<<\/span> DIN)<\/span>;}<\/span>\r\n        PORTD |<\/span>=(<\/span>1<\/span> <<<\/span> CLK)<\/span>;}<\/span>\r\n     for<\/span>(<\/span>char i = 7<\/span>; i ><\/span>= 0<\/span>; i--)<\/span>{<\/span>\r\n        PORTD &<\/span>= ~(<\/span>1<\/span> <<<\/span> CLK)<\/span>;\r\n        if<\/span>(<\/span>(<\/span>(<\/span>data<\/span> >><\/span> i)<\/span> &<\/span> 1<\/span>)<\/span> == 1<\/span>)<\/span>{<\/span>PORTD |<\/span>= (<\/span>1<\/span> <<<\/span> DIN)<\/span>;}<\/span>else<\/span>{<\/span>PORTD &<\/span>= ~(<\/span>1<\/span> <<<\/span> DIN)<\/span>;}<\/span>\r\n        PORTD |<\/span>=(<\/span>1<\/span> <<<\/span> CLK)<\/span>;}<\/span>\r\n        PORTD &<\/span>= ~(<\/span>1<\/span> <<<\/span> CLK)<\/span>;PORTD |<\/span>= (<\/span>1<\/span> <<<\/span> DIN)<\/span>;\r\n  }<\/span> \r\n\u00a0\r\nvoid<\/span> analyzeAudio(<\/span>)<\/span> {<\/span> \r\n while<\/span>(<\/span>i1 <<\/span> FHT_N)<\/span>{<\/span>i1++; \r\n    do<\/span>{<\/span>ADCSRA |<\/span>= (<\/span>1<\/span> <<<\/span> ADSC)<\/span>;}<\/span> \r\n    while<\/span>(<\/span>(<\/span>ADCSRA &<\/span> (<\/span>1<\/span> <<<\/span> ADIF)<\/span>)<\/span> == 0<\/span>)<\/span>;fht_input[<\/span>i1]<\/span> = (<\/span>ADCL|<\/span>ADCH <<<\/span> 8<\/span>)<\/span>;}<\/span>i1=0<\/span>;\r\n    fht_window(<\/span>)<\/span>; \/\/ window the data for better frequency response<\/span>\r\n    fht_reorder(<\/span>)<\/span>; \/\/ reorder the data before doing the fht<\/span>\r\n    fht_run(<\/span>)<\/span>; \/\/ process the data in the fht<\/span>\r\n    fht_mag_log(<\/span>)<\/span>; \/\/ take the output of the fht<\/span>\r\n}<\/span><\/pre>\n
\u0421\u043a\u0435\u0442\u0447 \u0430\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440\u0430 \u0441\u043f\u0435\u043a\u0442\u0440\u0430 \u0438\u043c\u0435\u0435\u0442 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0436\u043d\u043e \u0438\u0437\u043c\u0435\u043d\u0438\u0442\u044c:<\/p>\n
    \n
  • #define LOW_PASS 40 \/\/ \u043d\u0438\u0436\u043d\u0438\u0439 \u043f\u043e\u0440\u043e\u0433 \u0447\u0443\u0432\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0448\u0443\u043c\u043e\u0432 (\u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435 \u0441\u043a\u0430\u0447\u043a\u043e\u0432 \u043f\u0440\u0438 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0438 \u0437\u0432\u0443\u043a\u0430)<\/li>\n
  • #define DEF_GAIN 300 \/\/ \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u0440\u043e\u0433 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e<\/li>\n
  • #define INPUT_GAIN 1.0 \/\/ \u043f\u0440\u0435\u0434\u0443\u0441\u0438\u043b\u0438\u0442\u0435\u043b\u044c \u0432\u0445\u043e\u0434\u0430<\/li>\n
  • #define BR 0 \/\/ \u044f\u0440\u043a\u043e\u0441\u0442\u044c \u043c\u0430\u0442\u0440\u0438\u0446\u044b<\/li>\n<\/ul>\n
    \u041f\u0438\u0442\u0430\u043d\u0438\u0435 \u043c\u0430\u0442\u0440\u0438\u0446\u044b \u043c\u043e\u0436\u043d\u043e \u0431\u0440\u0430\u0442\u044c \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e \u0441 \u043f\u043b\u0430\u0442\u044b Arduino, \u043d\u043e \u043f\u0440\u0438 \u0443\u0441\u043b\u043e\u0432\u0438\u0438 \u0447\u0442\u043e \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u044f\u0440\u043a\u043e\u0441\u0442\u0438 #define BR<\/strong> \u043d\u0435 \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u0442\u044c 3. \u041f\u0440\u0438 \u0431\u043e\u043b\u044c\u0448\u043e\u0439 \u044f\u0440\u043a\u043e\u0441\u0442\u0438 \u043c\u0430\u0442\u0440\u0438\u0446\u0430 \u0434\u043e\u043b\u0436\u043d\u0430 \u043f\u0438\u0442\u0430\u0442\u044c\u0441\u044f \u043e\u0442 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0430 \u043f\u0438\u0442\u0430\u043d\u0438\u044f \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435\u043c 5 \u0412 \u0441 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u0442\u043e\u043a\u043e\u043c 1.5-2.0 \u0410. \u0422\u0430\u043a \u0436\u0435 \u043f\u0440\u0438 \u043f\u0438\u0442\u0430\u043d\u0438\u0438 \u043c\u0430\u0442\u0440\u0438\u0446\u044b \u043e\u0442 \u043f\u043b\u0430\u0442\u044b Arduino, \u043f\u0438\u0442\u0430\u043d\u0438\u0435 \u043d\u0430 \u043c\u0430\u0442\u0440\u0438\u0446\u0443 \u043f\u043e\u0434\u0430\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u0441\u043b\u0435 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0441\u043a\u0435\u0442\u0447\u0430.<\/p>\n