1  # SPDX-FileCopyrightText: 2021 Carter Nelson for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  import json
 6  import serial
 7  
 8  # open serial port
 9  ss = serial.Serial("/dev/ttyACM0")
10  
11  # read string
12  _ = ss.readline() # first read may be incomplete, just toss it
13  raw_string = ss.readline().strip().decode()
14  
15  # load JSON
16  json_data = json.loads(raw_string)
17  
18  # print data
19  print(json_data['trng'])