From f3064fb535a442112d0c79d0a25af1cea4bd9f08 Mon Sep 17 00:00:00 2001
From: Gabriel Augendre <gabriel@augendre.info>
Date: Sat, 7 Jan 2023 14:30:02 +0100
Subject: [PATCH] Reduce power consumption by reducing CPU frequency when not
 playing

---
 src/main.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/main.cpp b/src/main.cpp
index 0e2308f..856db1c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -13,6 +13,7 @@ long lastDebounceTime = 0;
 
 void setup()
 {
+  setCpuFrequencyMhz(240);
   // Setup GPIO
   pinMode(LED, OUTPUT);
   digitalWrite(LED, LOW);
@@ -39,6 +40,7 @@ void setup()
 
   // Setup is done, light up the LED
   Serial.println("All setup & ready to go!");
+  setCpuFrequencyMhz(80);
   digitalWrite(LED, HIGH);
 }
 
@@ -53,3 +55,15 @@ void loop()
   }
   audio.loop();
 }
+
+void audio_info(const char *info){
+  String s_info = info;
+  s_info.toLowerCase();
+  s_info.trim();
+  if (s_info == "closing audio file") {
+    setCpuFrequencyMhz(80);
+  }
+  else if (s_info == "stream ready") {
+    setCpuFrequencyMhz(240);
+  }
+}