init

cap_read.py

@@ -8,11 +8,12 @@ from collections import namedtuple
 import socket
 
 
+
 DEF_CDC_SYNC_MS = 1000  #电容同步间隔
 DEF_GET_CAP_MS  =   (30)  #读取电容间隔
 DEF_PRO_CYC = 100
 
-DEF_MAX_FINGER_NUM = 5 # 需要连接的手指数量，最大5个
+DEF_MAX_FINGER_NUM = 1 #需要连接的手指数量，最大5个
 
 # 定义一个全局的队列，用于线程间通信
 capReadQueue = queue.Queue()
@@ -47,7 +48,7 @@ class ClassCapRead:
         self.syncTimer = 0
 
         self.connectStatus = EnumCh341ConnectStatus.CH341_CONNECT_INIT
-
+        self.running = True # <-- 新增这一行
         self.connectDebug()
         
     def __del__(self):
@@ -176,20 +177,26 @@ class ClassCapRead:
             difftime = int(capReadTime*1000-ms_capReadTime*1000)
             #print(f"diffTime={difftime}")
             #定时器在任务完成后重新启动
-            if(difftime>DEF_GET_CAP_MS):
-                timer = threading.Timer(DEF_GET_CAP_MS/1000, self.capRead)
-            else:
-                timer = threading.Timer((DEF_GET_CAP_MS-difftime)/1000, self.capRead)
+            if self.running:   # 新增判断
+                if(difftime>DEF_GET_CAP_MS):
+                    timer = threading.Timer(DEF_GET_CAP_MS/1000, self.capRead)
+                else:
+                    timer = threading.Timer((DEF_GET_CAP_MS-difftime)/1000, self.capRead)
             timer.start()
         
 
 def capReadThread():
-    # 线程的主体功能
     cap = ClassCapRead()
-
-    while True:
-        cap.ch341Connect()
-        time.sleep(DEF_PRO_CYC/1000)
+    try:
+        while True:
+            cap.ch341Connect()
+            time.sleep(DEF_PRO_CYC/1000)
+    except KeyboardInterrupt:
+        print("\nStopping sensor read...")
+        cap.running = False
+        cap.disConnectDebug()
+        cap.ch341.disconnect()
+        print("CH341 released.")
     
 def main():
     capReadThread()