Heres details of a cheap arduino altitude recorder ive built!


Looking for a simple altitude recording device, i found this simple arduino project Standalone-Arduino-Altimeter. Only three components & around 10 quid to build.

I decided to build one but the software need tweaking to suit. I wanted an altitude above launch. As it stood, it indicated pressure temperature and altitude with altitude min and altitude max. The altitude was dependent on both baro pressure and locality height. It could be possible to calibrate it but this would vary with weather. Also 2 decimal places was too much.

My software simply sets a zero altitude on power up/reset and a maximum in relation to this datum . Ive also set it to feet rather than meters! The bmp280 chip is apparently good for around +/- 3ft



My device mounted in a small plastic box 50mm X 35mm and weighs less than 20g. The plastic screw is mounted above the arduino reset button to act as a button to reset the altimeter to zero before flight.

If anyones interested i could post my revised software!