Design of Radiosonde Based on Arduino Pro Mini Using BME280 Sensor

Aims: To produce low-cost Radiosonde instruments with high accuracy, which are expected to be used as a reference in developing upper aerial observation instruments so as to reduce observation costs

Study Design: Design of Radiosonde Based on Arduino Pro Mini Using BME280 Sensor.

Place and Duration of Study: Department of Physics, Udayana University, and Indonesian Agency of Meteorology, Climatology, and Geophysics (BMKG), Region-III Badung, between June 2022 and August 2022.

Methodology: Calibration is done by comparing the output value of the BME280 sensor and the BMKG calibration standard tool. The calibrated parameters are temperature, humidity, and air pressure.

Results: Radiosonde instruments based on Arduino Pro Mini using the BME280 sensor have been produced. The measurement accuracy obtained for the temperature parameter is 99.9968% with uncertainty (U95) of ±0.18°C , the humidity parameter is 99.296% with uncertainty (U95) of ±2.9%RH, the air pressure parameter is 99.99998% with uncertainty (U95) of ±0.15 hPa. The accuracy value indicates that the resulting tool has a good level of accuracy to the standard tool.

Conclusion: In this research, has been produced a Radiosonde instruments at a low-cost with high accuracy and precision, which have been calibrated with BMKG standard tools.