Respiratory rate sensor

what can i use module to get respiratory rate sensor breath per minutes i use the pressure sensor but pressure sensor cant read breath what is good to use?

Hi Kevin, I can think of two approaches. One is to measure movement of air into/out of mouth or nose. A second is to measure movement of the chest/rib cage.

That second might be more portable and less invasive for the wearer. Perhaps a strap around the chest with an elastic section to allow for expansion, where a linear potentiometer moves as the elastic expands?

im sorry im begginer in arduino and what should i use in order to measure the movement of air through mouth and how about when the chest rise

Maybe just measure the temperature of the air near the nose/mouth?

Exhaled air is noticeably warmer than inhaled air.