gonzopi

git clone https://git.tarina.org/gonzopi
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slidereader.py (2269B)

      1 import serial
      2 import serial.tools.list_ports
      3 import time
      4 import select
      5 
      6 def list_serial_ports():
      7     # Get a list of all serial ports
      8     ports = serial.tools.list_ports.comports()
      9     # Print the available ports
     10     if not ports:
     11         print("No serial ports found.")
     12     else:
     13         print("Available serial ports:")
     14         for port in ports:
     15             print(f"{port.device} - {port.description}")
     16             return port.device
     17 
     18 def listen_serial_port(serial_port):
     19     baud_rate = 57600# Set the baud rate according to your device
     20     # Create a serial connection
     21     try:
     22         ser = serial.Serial(serial_port, baud_rate, timeout=1)
     23         print(f"Connected to {serial_port} at {baud_rate} baud.")
     24     except serial.SerialException as e:
     25         print(f"Error: {e}")
     26         exit()
     27     # Give some time for the connection to establish
     28     time.sleep(0)
     29     # Read data from the serial port
     30     try:
     31         while True:
     32             ready, _, _ = select.select([ser], [], [], 1)  # 1 second timeout
     33             if ready:
     34                 received_data = ser.readline().decode('utf-8').strip()  # Read a line and decode
     35                 print(f"Received: {received_data}")
     36     except KeyboardInterrupt:
     37         print("Exiting...")
     38     finally:
     39         # Close the serial connection
     40         ser.close()
     41         print("Serial connection closed.")
     42 
     43 def send_serial_port(serial_port,msg):
     44     baud_rate = 57600       # Set the baud rate according to your device
     45     # Create a serial connection
     46     try:
     47         ser = serial.Serial(serial_port, baud_rate, timeout=1)
     48         print(f"Connected to {serial_port} at {baud_rate} baud.")
     49     except serial.SerialException as e:
     50         print(f"Error: {e}")
     51         exit()
     52 
     53     # Give some time for the connection to establish
     54     time.sleep(2)
     55 
     56     # Write data to the serial port
     57     data_to_send = msg  # Add a newline if needed
     58     try:
     59         ser.write(data_to_send.encode('utf-8'))  # Encode the string to bytes
     60         print(f"Sent: {data_to_send.strip()}")
     61     except Exception as e:
     62         print(f"Error while sending data: {e}")
     63 
     64     # Close the serial connection
     65     ser.close()
     66     print("Serial connection closed.")
     67 
     68 if __name__ == "__main__":
     69     port = list_serial_ports()
     70     listen_serial_port(port)
     71