Andur mõõdab kehalt tagasi peegelduvat infrapuna (IR) kiirgust ja arvutab selle järgi pulsi sageduse. Samuti amplituudi, kuna on rõhk kõige kõrgem ja madalam, mida kajastab vastavalt põlevate LEDide hulk. IR väärtustest arvutatakse ka LEDide värv.
Tag Archives: esp8266
My home environment and air quality monitoring system
We often hide the electronics in a box. And cases can be done well and nicely. But when our main interest is electronics then it is sad to hide it. That is way like to do it the opposite way. Sensors will measure particulate matter (Ultrafine dust PM2.5 and fine dust PM10), co2, TVOC, ambientContinue reading “My home environment and air quality monitoring system”
Dust sensor
Nova PM sensor SDS011 can measure fine dust and smoke = particulate matter (MP) concentrations in two categories: Ultrafine dust particles with a diameter of 0 – 2.5 micrometres (μm/m3). Output PM2.5 Fine dust particles with a diameter 2.5 – 10 micrometres (μm/m3). Output PM10 The sensor is designed with a built-in fan to ensureContinue reading “Dust sensor”
Tauno Erik 