From 68bd1dd09c6d952bc74841532ba694d2738e5e13 Mon Sep 17 00:00:00 2001 From: Dobrica Pavlinusic Date: Fri, 11 Dec 2020 19:38:45 +0100 Subject: [PATCH] added rms_sound --- GroveSensor.ino | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/GroveSensor.ino b/GroveSensor.ino index fe54a7d..5272ccc 100644 --- a/GroveSensor.ino +++ b/GroveSensor.ino @@ -51,10 +51,12 @@ void setup(void) { } -unsigned long button_timeout; +unsigned long t; void loop(void) { + t = millis(); + int oled_active = ! digitalRead(BUTTON_PIN); u8x8.setPowerSave( oled_active ); @@ -92,6 +94,15 @@ void loop(void) { Serial.print(",bmp_pressure="); Serial.print(pressure); + unsigned long sumSquare; + for(int i=0; i++; i<1000) { + int sound = analogRead(SOUND_PIN); + sumSquare += sound * sound; + } + int rms_sound = sqrt(sumSquare / 1000); + Serial.print(",rms_sound="); + Serial.print(rms_sound); + int sound = analogRead(SOUND_PIN); u8x8.setCursor(0,3 * 9); u8x8.print( sound ); @@ -106,7 +117,10 @@ void loop(void) { Serial.println(); u8x8.refreshDisplay(); - delay(1000); + + // next loop in 1000ms from start + t = t + 1000 - millis(); + delay(t); } -- 2.20.1