[feat] add serial demo by python

python/serial/pec_serial.py

@@ -0,0 +1,51 @@
+import serial
+import time
+from datetime import datetime
+
+# 串口配置
+serial_port = 'COM3'  # 替换为你的串口设备
+baud_rate = 115200             # 替换为你的波特率
+timeout = 0.04                 # 超时时间
+
+# 要发送的数据
+data_to_send = "json_get_down"
+count_right = 0
+count_error = 0
+count_total = 0
+
+# 创建串口对象
+ser = serial.Serial(serial_port, baud_rate, timeout=timeout)
+print("pec_serial test start ...")
+
+try:
+    while True:
+        # 发送数据
+        # print(f'Sending: {data_to_send}', count_right)
+        ser.write(data_to_send.encode('utf-8'))
+        
+        # 等待接收数据
+        time.sleep(0.04)  # 等待设备响应
+        received_data = ser.read(ser.in_waiting or 1).decode('utf-8')  # 读取所有可用的数据
+
+        # 检查收到的数据
+        if received_data == data_to_send:
+            count_right = count_right + 1
+            # print('Data received correctly:', received_data)
+        else:
+            print('Data mismatch. Expected:', data_to_send, 'Received:', received_data)
+            count_error = count_error + 1
+
+        count_total = count_total + 1
+        if count_total % 1000 == 0:
+            now = datetime.now()
+            formatted_now = now.strftime("%Y-%m-%d %H:%M:%S    ")
+            print(formatted_now, end='')
+            print('all:', count_total, 'Success:', count_right, ', Failed:', count_error)
+
+except KeyboardInterrupt:
+    ser.close()
+    print("Exiting...")
+
+finally:
+    # 关闭串口
+    ser.close()