From 37c62c02882b905cec087d463d6ff7cf65be4022 Mon Sep 17 00:00:00 2001
From: Junhuang <junhuang@m5stack.com>
Date: Wed, 8 Apr 2026 11:26:25 +0800
Subject: [PATCH] Modify the scanning method for PI4 address

---
 src/M5ModuleQRCode.cpp | 31 ++++++++++++-------------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/src/M5ModuleQRCode.cpp b/src/M5ModuleQRCode.cpp
index e7859ba..3105c57 100644
--- a/src/M5ModuleQRCode.cpp
+++ b/src/M5ModuleQRCode.cpp
@@ -42,34 +42,27 @@ bool M5ModuleQRCode::_init_pi4ioe5v6408()
     }
 
     // Probe device
-    bool is_found = false;
-    for (int i = 0; i < 3; i++) {
-        bool result[128];
-        _config.i2c->scanID(result);
-        if (result[_config.pi4ioe5v6408_addr]) {
-            is_found = true;
-            _LOG_DEBUG("pi4ioe5v6408 found at 0x%02x\n", _config.pi4ioe5v6408_addr);
-            break;
-        }
-        _LOG_ERROR("pi4ioe5v6408 not found at 0x%02x, retry %d\n", _config.pi4ioe5v6408_addr, i);
-        delay(500);
-    }
-    if (!is_found) {
-        _LOG_ERROR("pi4ioe5v6408 not found\n");
-        return false;
-    }
-
     if (_pi4ioe5v6408 != nullptr) {
         delete _pi4ioe5v6408;
         _pi4ioe5v6408 = nullptr;
     }
 
-    _pi4ioe5v6408 = new m5::PI4IOE5V6408_Class(_config.pi4ioe5v6408_addr, 100000, _config.i2c);
+    _pi4ioe5v6408 = new m5::PI4IOE5V6408_Class(_config.pi4ioe5v6408_addr, 100000, = _config.i2c);
+
+    if (_pi4ioe5v6408 == nullptr) {
+        _LOG_ERROR("pi4ioe5v6408 malloc failed\n");
+        return false;
+    }
+
     if (!_pi4ioe5v6408->begin()) {
-        _LOG_ERROR("init pi4ioe5v6408 failed\n");
+        _LOG_ERROR("pi4ioe5v6408 not found at 0x%02x\n", _config.pi4ioe5v6408_addr);
+        delete _pi4ioe5v6408;
+        _pi4ioe5v6408 = nullptr;
         return false;
     }
 
+    _LOG_DEBUG("pi4ioe5v6408 found at 0x%02x\n", _config.pi4ioe5v6408_addr);
+
     _pi4ioe5v6408->setDirection(CHANNEL_QRCODE_POWER_EN, true);
     _pi4ioe5v6408->setPullMode(CHANNEL_QRCODE_POWER_EN, true);
     _pi4ioe5v6408->enablePull(CHANNEL_QRCODE_POWER_EN, true);