printer

main.py

@@ -112,7 +112,7 @@ def connect_wifi(display=None, max_retries=5):
 
 
 
-def process_message(msg, display, image_state, image_data_list):
+def process_message(msg, display, image_state, image_data_list, printer_uart=None):
     """处理WebSocket消息"""
     # Handle binary image data
     if isinstance(msg, (bytes, bytearray)):
@@ -138,6 +138,12 @@ def process_message(msg, display, image_state, image_data_list):
                 print(f"Stream image error: {e}")
             
             return image_state, None
+            
+        elif image_state == PRINTER_STATE_RECEIVING:
+            if printer_uart:
+                printer_uart.write(msg)
+            return image_state, None
+            
         return image_state, None
 
     if not isinstance(msg, str):
@@ -153,6 +159,14 @@ def process_message(msg, display, image_state, image_data_list):
         print_asr(msg[4:], display)
         return image_state, ("asr", msg[4:])
     
+    elif msg.startswith("PRINTER_DATA_START:"):
+        print(f"Start receiving printer data...")
+        return PRINTER_STATE_RECEIVING, ("printer_start",)
+
+    elif msg == "PRINTER_DATA_END":
+        print("Printer data received completely")
+        return IMAGE_STATE_IDLE, ("printer_done",)
+    
     elif msg.startswith("STATUS:"):
         parts = msg[7:].split(":", 1)
         status_type = parts[0]
@@ -284,6 +298,9 @@ def main():
     mic = Microphone()
     display = Display()
     
+    # 初始化打印机 UART
+    printer_uart = machine.UART(1, baudrate=115200, tx=ttl_tx, rx=ttl_rx)
+    
     if display.tft:
         display.init_ui()
         display.render_home_screen()
@@ -446,9 +463,20 @@ def main():
                     if display.tft:
                         display.render_result_screen("OPTIMIZING", current_asr_text, False)
                     time.sleep(0.5)
+                elif ui_screen == UI_SCREEN_RESULT:
+                    # Re-record
+                    print(">>> Re-record (Short Press)")
+                    current_asr_text = ""
+                    confirm_waiting = False
+                    ui_screen = UI_SCREEN_RECORDING
+                    is_recording = False
+                    image_generation_done = False
+                    if display.tft:
+                        display.render_recording_screen("", 0, False)
+                    time.sleep(0.5)
             
             elif btn_action == 2:
-                if ui_screen == UI_SCREEN_CONFIRM or ui_screen == UI_SCREEN_RESULT:
+                if ui_screen == UI_SCREEN_CONFIRM:
                     print(">>> Re-record")
                     current_asr_text = ""
                     confirm_waiting = False
@@ -458,6 +486,17 @@ def main():
                     if display.tft:
                         display.render_recording_screen("", 0, False)
                     time.sleep(0.5)
+                elif ui_screen == UI_SCREEN_RESULT:
+                    # Print Image
+                    print(">>> Print Image (Long Press)")
+                    if ws and ws.is_connected():
+                         try:
+                             ws.send("PRINT_IMAGE")
+                             if display.tft:
+                                 display.render_result_screen("PRINTING", "正在请求打印...", True)
+                         except:
+                             ws = None
+                    time.sleep(0.5)
 
             elif btn_action == 3:
                 print(">>> Config mode")
@@ -484,7 +523,7 @@ def main():
                         if events:
                             msg = ws.recv()
                             if msg:
-                                image_state, event_data = process_message(msg, display, image_state, image_data_list)
+                                image_state, event_data = process_message(msg, display, image_state, image_data_list, printer_uart)
                                 
                                 if event_data:
                                     if event_data[0] == "asr":
@@ -521,6 +560,15 @@ def main():
                                     elif event_data[0] == "error":
                                         if display.tft and ui_screen == UI_SCREEN_RESULT:
                                             display.render_result_screen("ERROR", current_prompt, False)
+                                            
+                                    elif event_data[0] == "printer_start":
+                                        if display.tft and ui_screen == UI_SCREEN_RESULT:
+                                            display.render_result_screen("PRINTING", "正在打印...", True)
+                                    
+                                    elif event_data[0] == "printer_done":
+                                        if display.tft and ui_screen == UI_SCREEN_RESULT:
+                                            display.render_result_screen("COMPLETE", "打印完成", True)
+                                            time.sleep(1.0)
                     except Exception as e:
                         print(f"WS Recv Error: {e}")
                 

websocket_server/server.py

@@ -530,17 +530,20 @@ def optimize_prompt(asr_text, progress_callback=None):
     if progress_callback:
         progress_callback(0, "正在准备优化提示词...")
     
-    system_prompt = """你是一个AI图像提示词优化专家。将用户简短的语音识别结果转化为详细的、适合AI图像生成的中文提示词。
+    system_prompt = """你是一个AI图像提示词优化专家。你的任务是将用户的语音识别结果转化为适合生成"黑白线稿"的提示词。
-要求：
+关键要求：
-1. 用于热敏打印机的中文提示词图片
+1. 风格必须是：简单的黑白线稿、简笔画、图标风格 (Line art, Sketch, Icon style)。
-2. 添加适合AI绘画的描述词尺寸宽48mm, 高30mm 的线稿图片，线稿要存粗方便热敏打印
+2. 画面必须清晰、线条粗壮，适合低分辨率热敏打印机打印。
-3. 适合热敏打印机打印图片，还可以是icon方便这个标签打印机打印效果
+3. 绝对不要有复杂的阴影、渐变、彩色描述。
-4. 简洁但描述详细
+4. 背景必须是纯白 (White background)。
-5. 不要添加多余解释，直接输出优化后的提示词"""
+5. 提示词内容请使用英文描述，因为绘图模型对英文理解更好，但在描述中强调 "black and white line art", "simple lines", "vector style"。
+6. 尺寸比例遵循宽48mm:高30mm (约 1.6:1)。
+7. 直接输出优化后的提示词，不要包含任何解释。"""
 
     try:
         if progress_callback:
             progress_callback(10, "正在调用AI优化提示词...")
+            print(f"Calling AI with prompt: {system_prompt}\n\n用户语音识别结果：{asr_text}\n\n优化后的提示词：")
         
         response = Generation.call(
             model='qwen-turbo',