Testing ESP8266-01 + DHT22 with 2x AA batteries

MH-Z19B High accuracy Carbon Dioxide NDIR-type sensor 0/10.000 ppm • BMP280 digital pressure & temperature sensor • DHT22 Humidity & temperature capacitive-type sensor • NodeMCU ESP8266 LUA v3 • Ciudad Autónoma de Buenos Aires, Argentina

Server room monitoring with DHT22 temperature and humidity sensor by a NodeMCU ESP12-E control device.

Szerverszoba hőmérsékletének mérése DHT22 és NodeMCU ESP12-E eszközökkel.

Szerverszoba hőmérsékletének mérése DHT22 és NodeMCU ESP12-E eszközökkel.

Hey I've moved house. I'm now in Bathgate and this device is in the converted attic space. At the start of June 2020 it's measuring 28C in there with a humidity around 45%. That's too much for my "office space" so I'm getting some venting sorted out.

Ternopil real-time outdoor Air Quality Monitor point#2

Indoor Temperature and Humidity from DHT11

Ternopil real-time outdoor Air Quality Monitor point#3

Ternopil real-time outdoor Air Quality Monitor point#1

Indoor remote temperature sensor for DIY weather station in Skierniewice, Poland.

A comparison between the humidity in the office and the ideal humidity calculated using outdoor temperature.

Checking the freezer temperature of my oldie Fridge.

Temperatura y humedad

Particle Core with Outdoor Temperature, P:article Photon testing a DS1820B