52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
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/*
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* ESP8266 + FastLED + IR Remote + MSGEQ7: https://github.com/jasoncoon/esp8266-fastled-webserver
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* Copyright (C) 2015 Jason Coon
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define MSGEQ7_STROBE_PIN 4
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#define MSGEQ7_RESET_PIN 14
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#define MSGEQ7_OUT_PIN A0
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const uint8_t bandCount = 7;
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uint8_t levels[bandCount];
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uint8_t filter = 200;
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void initializeAudio() {
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pinMode(MSGEQ7_OUT_PIN, INPUT);
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pinMode(MSGEQ7_RESET_PIN, OUTPUT);
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pinMode(MSGEQ7_STROBE_PIN, OUTPUT);
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digitalWrite(MSGEQ7_RESET_PIN, LOW);
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digitalWrite(MSGEQ7_STROBE_PIN, HIGH);
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}
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void readAudio() {
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digitalWrite(MSGEQ7_RESET_PIN, HIGH);
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digitalWrite(MSGEQ7_RESET_PIN, LOW);
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int level;
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for (uint8_t band = 0; band < bandCount; band++) {
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digitalWrite(MSGEQ7_STROBE_PIN, LOW);
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delayMicroseconds(30);
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uint16_t level = analogRead(MSGEQ7_OUT_PIN);
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levels[band] = map(level, filter, 1023, 0, 255);
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digitalWrite(MSGEQ7_STROBE_PIN, HIGH);
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}
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}
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