Simple script analyzing output of a loco positioning node in TWR tag mode, saves the distance measurement in a csv file

disp_node.py

import serial
import re

nranges = 0
nsuccess = 0

current_range = 0
last_pass = False

csv = open("node_otput.csv", "w")
csv.write("range, state")

meas = [0]*100

with serial.Serial("/dev/ttyACM0", 115200) as ser:
    while True:
        line = ser.readline().strip().decode("utf8")

        match = re.match("^distance 1: *([0-9]+)mm", line)

        if line == "Interrogating anchor 1":
            # Printing state
            template = "\r\033[2K{} Ranges {} Failed ({:.0f}% pass), Mean: {}m"
            percent_pass = 0
            if nsuccess > 0:
                percent_pass = 100*(nsuccess/nranges)
            distance = sum(meas) / len(meas)
            print(template.format(nranges, nranges-nsuccess,
                                  percent_pass, distance), end='')

            if nsuccess > 0:
                csv.write("{}, {}\n".format(current_range,
                                            1 if last_pass else 0))

            nranges += 1
            last_pass = False
        elif match:
            current_range = int(match.group(1)) / 1000.0
            meas = [int(match.group(1)) / 1000.0] + meas
            meas.pop()
            nsuccess += 1
            last_pass = True