diff --git a/src/espmega_iot_lcd.cpp b/src/espmega_iot_lcd.cpp
index 6006f45..d4c89b9 100644
--- a/src/espmega_iot_lcd.cpp
+++ b/src/espmega_iot_lcd.cpp
@@ -34,4 +34,40 @@ void lcd_init()
     lcd_reset();
     delay(750);
 #endif
+}
+
+bool lcd_upload_start(size_t size)
+{
+    Serial.begin(115200);
+    lcd_send_stop_bit();
+    Serial.print("rest");
+    lcd_send_stop_bit();
+    Serial.print("connect");
+    lcd_send_stop_bit();
+    delay(1000);
+    Serial.print("whmi-wri 1024,115200,res0");
+    lcd_send_stop_bit();
+    lcd_wait_ack();
+}
+bool lcd_upload_write(uint8_t *data, size_t size)
+{
+    for (int i = 0; i < size; i++)
+    {
+        Serial.write(data[i]);
+    }
+}
+
+bool lcd_wait_ack()
+{
+    bool data_ok = false;
+    for (int i; i < 50; i++)
+    {
+        if (Serial.read() == 0x05)
+        {
+            data_ok = true;
+            break;
+        }
+        delay(100);
+    }
+    return data_ok;
 }
\ No newline at end of file
diff --git a/src/espmega_iot_lcd.hpp b/src/espmega_iot_lcd.hpp
index 5960241..0e70e3c 100644
--- a/src/espmega_iot_lcd.hpp
+++ b/src/espmega_iot_lcd.hpp
@@ -2,8 +2,13 @@
 
 #include <ESPMegaPRO.h>
 
+
 void lcd_send_stop_bit();
 void lcd_send_command(String command);
 String lcd_wait_response();
 void lcd_reset();
-void lcd_init();
\ No newline at end of file
+void lcd_init();
+
+bool lcd_upload_start(size_t size);
+bool lcd_upload_write(uint8_t* data, size_t size);
+bool lcd_wait_ack();
\ No newline at end of file