diff --git a/version.txt b/version.txt
index 56fea8a..13d683c 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-3.0.0
\ No newline at end of file
+3.0.1
\ No newline at end of file
diff --git a/zh_160x_i2c.c b/zh_160x_i2c.c
index 4d36ba6..57f6f7d 100644
--- a/zh_160x_i2c.c
+++ b/zh_160x_i2c.c
@@ -22,9 +22,9 @@ static const char *TAG = "zh_160x_i2c";
 
 #define LCD_160X_PULSE                       \
     zh_pcf8574_write_gpio(handle, 2, true);  \
-    esp_delay_us(300);                       \
+    esp_delay_us(500);                       \
     zh_pcf8574_write_gpio(handle, 2, false); \
-    esp_delay_us(400);
+    esp_delay_us(500);
 
 static void _zh_160x_lcd_init(zh_pcf8574_handle_t *handle);
 static void _zh_160x_send_command(zh_pcf8574_handle_t *handle, uint8_t command);