Breathing is a complex process that relies heavily on the coordinated action of the muscles of respiration and the control center in the brain. The primary function of the lungs is to facilitate gas exchange between inspired air and the circulatory system. It helps bring oxygen to the blood and remove carbon dioxide from the body. Oxygen is critical for proper metabolism on a cellular level
This interaction causes a drop in the current flowing through the chip, similar to the way ionization smoke detectors work. When the voltage drops, the alarm sounds. The most sensitive carbon monoxide detectors use electrochemical sensors that consist of electrodes submerged in chemical baths. These are less commonly used for household safety
An indoor pollution sensor, or air quality sensor, is therefore very useful to continuously measure the level of CO2 level inside our home. But that's not all, because even if it is an indicator of the level of indoor pollution, it is not enough: the level of fine particles is also very important to measure, among other things.
Designed on the basis of the photoacoustic spectroscopy (PAS) concept, the sensor saves more than 75 percent space compared to existing commercial real CO2 sensors. Its direct ppm readings, tape & reel packing, SMD capability and simple design allow for a quicker and easier integration into customers’ systems in low and high-volume The PM2.5 sensor communicates with the Arduino through a serial interface. It works at 5V, but the receive RX logic level works at 3.3v, so therefore we need a voltage divider for it. The CO2 sensor and the Nextion display also use serial communication. For reading the VOC and the Ozone sensors we use analog inputs of the Arduino, while the