import time
import serial.tools.list_ports
[docs]
def main():
# Get available COM ports and store as a list
com_ports = list(serial.tools.list_ports.comports())
no_com_ports = len(com_ports)
# Print out user information
if no_com_ports > 0:
print("Total number of available COM ports:", no_com_ports)
# Show all available COM ports
for idx, curr in enumerate(com_ports):
print(" " + str(idx) + ".) " + curr.description)
# User chooses COM port to connect to
while True:
try:
com_port_idx = int(
input("Enter the number of the COM port to connect to (0 - " + str(no_com_ports - 1) + "): "))
except ValueError:
print("Incorrect value for COM port! Enter a number (0 - " + str(no_com_ports - 1) + ")")
continue
else:
if not (0 <= com_port_idx < no_com_ports):
continue
break
# Configure the COM port to communicate with
chosen_com_port = com_ports[com_port_idx].device
com_port = serial.Serial(
port=chosen_com_port,
baudrate=9600,
bytesize=serial.EIGHTBITS,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE
)
if com_port.is_open:
com_port.flushInput()
com_port.flushOutput()
print("Opened Port:", chosen_com_port)
# Loop until the entered cmd is "exit"
while True:
cmd = input(">>: ") # Get the cmd to send
if cmd == 'exit':
break
else:
com_port.write((cmd + '\r\n').encode())
time.sleep(0.001)
response = ''
while com_port.in_waiting > 0:
response = com_port.readline()
if response:
print("<<:", response.decode("utf-8"))
else:
print("<< Error, no Response!")
else:
print("Couldn't open Port!")
exit()
com_port.close()
else:
print("No COM ports available!")
exit()
if __name__ == '__main__':
main()