CODEWITHSUNDEEP
pythonbashtty
homeGrown
homeGrown

Reputation: 375

Detect which /dev/ttyACM is open

Is their a command that returns what /dev/ttyACM* is open. At some stage in the script it disconnects the usb and reconnects but the ACM increments after this so the variable port = /dev/ttyACM0 now is /dev/ttyACM1. I want to detect which /dev/ttyACM* is open. So port = return (command to find ACM)

Upvotes: 1

Views: 2639

Answers (1)

Chrispresso
Chrispresso

Reputation: 4071

Using glob and serial, this should do the trick:

import glob
import serial

def find_ports():
    ports = glob.glob('/dev/ttyACM[0-9]*')

    res = []
    for port in ports:
        try:
            s = serial.Serial(port)
            s.close()
            res.append(port)
        except:
            pass
    return res

Upvotes: 4

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