load_csv.py

import matplotlib.pyplot as plt
import csv

# Open the CSV file and read its contents into two lists
timestamps = []
values = []
with open('air_data.csv') as csvfile:
    csvreader = csv.reader(csvfile)
    for row in csvreader:
        timestamps.append(row[0])
        values.append(row[1])

# Convert the timestamps and values to numeric data types
timestamps = [float(ts) for ts in timestamps]
values = [float(val) for val in values]

# Plot the data using matplotlib
plt.plot(timestamps, values, color='red')
plt.xlabel('Timestamp')
plt.ylabel('Value')
plt.title('Data from CSV file')
plt.show()