printer

main.py

@@ -141,7 +141,11 @@ def process_message(msg, display, image_state, image_data_list, printer_uart=Non
             
         elif image_state == PRINTER_STATE_RECEIVING:
             if printer_uart:
-                printer_uart.write(msg)
+                chunk_size = 128
+                for i in range(0, len(msg), chunk_size):
+                    chunk = msg[i:i+chunk_size]
+                    printer_uart.write(chunk)
+                    time.sleep_ms(5)
             return image_state, None
             
         return image_state, None
@@ -165,6 +169,9 @@ def process_message(msg, display, image_state, image_data_list, printer_uart=Non
 
     elif msg == "PRINTER_DATA_END":
         print("Printer data received completely")
+        # 发送打印完成的回车
+        if printer_uart:
+            printer_uart.write(b'\r\n')
         return IMAGE_STATE_IDLE, ("printer_done",)
     
     elif msg.startswith("STATUS:"):