Review on HiLetgo Precision BMP280 3 3 Atmospheric Pressure Tester: Accurate Measurement and Inspection Tool by Joshua Mejia

The device works perfectly. I'm impressed with the accuracy and stability. It remains to calibrate a little. Just go ahead and get about 4-5 pressure points from different airports in your area. Average those measurements, then turn around and get the sensor reading, and then subtract it from the average, take that difference and remove it. It's about 40 or so. Once that calibration is in your code. It remains without any real changes. I ran this thing 3 days straight and measured once a minute with the Arduino ESP8622. Works perfectly.