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