From 0b21426f71a8d0ae08b9706be09be116ac9cdda8 Mon Sep 17 00:00:00 2001
From: Forairaaaaa <applesyqd@outlook.com>
Date: Wed, 15 Apr 2026 14:05:18 +0800
Subject: [PATCH] fix serial build error

---
 examples/IR/Receive/Receive.ino | 20 ++++++++++----------
 examples/IR/Send/Send.ino       | 10 +++++-----
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/examples/IR/Receive/Receive.ino b/examples/IR/Receive/Receive.ino
index 1ad7e62..e6c451d 100644
--- a/examples/IR/Receive/Receive.ino
+++ b/examples/IR/Receive/Receive.ino
@@ -35,7 +35,7 @@ decode_results results;
 void setup()
 {
     M5StackChan.begin();
-    USBSerial.begin(115200);
+    Serial.begin(115200);
 
     // Perform a low level sanity checks that the compiler performs bit field
     // packing as we expect and Endianness is as we expect.
@@ -55,23 +55,23 @@ void loop()
     if (irrecv.decode(&results)) {
         // Display a crude timestamp.
         uint32_t now = millis();
-        USBSerial.printf(D_STR_TIMESTAMP " : %06u.%03u\n", now / 1000, now % 1000);
+        Serial.printf(D_STR_TIMESTAMP " : %06u.%03u\n", now / 1000, now % 1000);
         // Check if we got an IR message that was to big for our capture buffer.
-        if (results.overflow) USBSerial.printf(D_WARN_BUFFERFULL "\n", kCaptureBufferSize);
+        if (results.overflow) Serial.printf(D_WARN_BUFFERFULL "\n", kCaptureBufferSize);
         // Display the library version the message was captured with.
-        USBSerial.println(D_STR_LIBRARY "   : v" _IRREMOTEESP8266_VERSION_STR "\n");
+        Serial.println(D_STR_LIBRARY "   : v" _IRREMOTEESP8266_VERSION_STR "\n");
         // Display the tolerance percentage if it has been change from the default.
-        if (kTolerancePercentage != kTolerance) USBSerial.printf(D_STR_TOLERANCE " : %d%%\n", kTolerancePercentage);
+        if (kTolerancePercentage != kTolerance) Serial.printf(D_STR_TOLERANCE " : %d%%\n", kTolerancePercentage);
         // Display the basic output of what we found.
-        USBSerial.print(resultToHumanReadableBasic(&results));
+        Serial.print(resultToHumanReadableBasic(&results));
         // Display any extra A/C info if we have it.
         String description = IRAcUtils::resultAcToString(&results);
-        if (description.length()) USBSerial.println(D_STR_MESGDESC ": " + description);
+        if (description.length()) Serial.println(D_STR_MESGDESC ": " + description);
         yield();  // Feed the WDT as the text output can take a while to print.
         // Output the results as source code
-        USBSerial.println(resultToSourceCode(&results));
-        USBSerial.println();  // Blank line between entries
-        yield();              // Feed the WDT (again)
+        Serial.println(resultToSourceCode(&results));
+        Serial.println();  // Blank line between entries
+        yield();           // Feed the WDT (again)
     }
     delay(50);
 }
diff --git a/examples/IR/Send/Send.ino b/examples/IR/Send/Send.ino
index 0e7a4a8..4086646 100644
--- a/examples/IR/Send/Send.ino
+++ b/examples/IR/Send/Send.ino
@@ -26,22 +26,22 @@ uint8_t samsungState[kSamsungAcStateLength] = {0x02, 0x92, 0x0F, 0x00, 0x00, 0x0
 void setup()
 {
     M5StackChan.begin();
-    USBSerial.begin(115200);
+    Serial.begin(115200);
     irsend.begin();
 }
 
 void loop()
 {
-    USBSerial.println("NEC");
+    Serial.println("NEC");
     irsend.sendNEC(0x00FFE01FUL);
     delay(2000);
-    USBSerial.println("Sony");
+    Serial.println("Sony");
     irsend.sendSony(0xa90, 12, 2);  // 12 bits & 2 repeats
     delay(2000);
-    USBSerial.println("a rawData capture from IRrecvDumpV2");
+    Serial.println("a rawData capture from IRrecvDumpV2");
     irsend.sendRaw(rawData, 67, 38);  // Send a raw data capture at 38kHz.
     delay(2000);
-    USBSerial.println("a Samsung A/C state from IRrecvDumpV2");
+    Serial.println("a Samsung A/C state from IRrecvDumpV2");
     irsend.sendSamsungAC(samsungState);
     delay(2000);
 }