From 42e4759634c88b5429d69e02c6a630976362a077 Mon Sep 17 00:00:00 2001
From: WillyJL <me@willyjl.dev>
Date: Sun, 14 Sep 2025 04:22:01 +0200
Subject: [PATCH] T-Lora Pager: Fix amplifier fuzzing/popping

---
 src/AudioThread.h | 17 +++++++++++++++++
 src/main.cpp      |  2 +-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/AudioThread.h b/src/AudioThread.h
index 286729909..f794d3a79 100644
--- a/src/AudioThread.h
+++ b/src/AudioThread.h
@@ -11,6 +11,11 @@
 #include <AudioOutputI2S.h>
 #include <ESP8266SAM.h>
 
+#ifdef USE_XL9555
+#include "ExtensionIOXL9555.hpp"
+extern ExtensionIOXL9555 io;
+#endif
+
 #define AUDIO_THREAD_INTERVAL_MS 100
 
 class AudioThread : public concurrency::OSThread
@@ -20,6 +25,9 @@ class AudioThread : public concurrency::OSThread
 
     void beginRttl(const void *data, uint32_t len)
     {
+#ifdef USE_XL9555
+        io.digitalWrite(EXPANDS_AMP_EN, HIGH);
+#endif
         setCPUFast(true);
         rtttlFile = new AudioFileSourcePROGMEM(data, len);
         i2sRtttl = new AudioGeneratorRTTTL();
@@ -45,6 +53,9 @@ class AudioThread : public concurrency::OSThread
         rtttlFile = nullptr;
 
         setCPUFast(false);
+#ifdef USE_XL9555
+        io.digitalWrite(EXPANDS_AMP_EN, LOW);
+#endif
     }
 
     void readAloud(const char *text)
@@ -55,10 +66,16 @@ class AudioThread : public concurrency::OSThread
             i2sRtttl = nullptr;
         }
 
+#ifdef USE_XL9555
+        io.digitalWrite(EXPANDS_AMP_EN, HIGH);
+#endif
         ESP8266SAM *sam = new ESP8266SAM;
         sam->Say(audioOut, text);
         delete sam;
         setCPUFast(false);
+#ifdef USE_XL9555
+        io.digitalWrite(EXPANDS_AMP_EN, LOW);
+#endif
     }
 
   protected:
diff --git a/src/main.cpp b/src/main.cpp
index 8d576f008..b821310ce 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -374,7 +374,7 @@ void setup()
     io.pinMode(EXPANDS_DRV_EN, OUTPUT);
     io.digitalWrite(EXPANDS_DRV_EN, HIGH);
     io.pinMode(EXPANDS_AMP_EN, OUTPUT);
-    io.digitalWrite(EXPANDS_AMP_EN, HIGH);
+    io.digitalWrite(EXPANDS_AMP_EN, LOW);
     io.pinMode(EXPANDS_LORA_EN, OUTPUT);
     io.digitalWrite(EXPANDS_LORA_EN, HIGH);
     io.pinMode(EXPANDS_GPS_EN, OUTPUT);