Time Series of Environmental Sensor Measurements, 19–20 December 2025

This dataset contains environmental measurements collected in a classroom at the Federal University of Pará (UFPA), Brazil, between 19 and 20 December 2025. The spreadsheet includes date and time fields (Day, Hour); temperature and relative humidity readings from a DHT22 sensor (DHT_T, DHT_U); temperature readings from an LM35 sensor (LM35); and temperature, pressure, and altitude readings from a BMP280 sensor (BMP_T, BMP_P, BMP_ALT). Temperature is reported in degrees Celsius (°C), relative humidity in percent (%), pressure in pascals (Pa), and altitude in meters (m). Some records are incomplete or and have been retained as recorded in the spreadsheet. Some measurements may be subject to fluctuations or measurement uncertainty due to sensor instability or other sensor-related issues.