mixed info from https://simple-circuit.com/arduino-datalogger-sd-card-ds3231-dht22/ and https://nicuflorica.blogspot.com/2019/03/termostat-simplu.html

ESP8266 with CCS811 & HDC1080 sensors - inside (bedroom)

ENS210 relative humidity and temperature sensor by ams

Live temperature measurement

Measuring outside temerature , relative humidity , dew point temperature, barometric pressure with a solar powered esp8266-07 wifi module a Si7021 humidity sensor,a DS18B20 temperature sensor and a bmp180 barometric pressure sensor. Power source is a 3

Breathe2 citizen sensors network for air pollution monitoring (see "More Information"). Location: MIT College, Kothrud, Pune, India.

Part of Breathe2 Network of citizen sensors for air pollution monitoring (see "More Information"). This channel records ambient temperature, relative humidity and pressure. Data details: average of 100 samples over 5 minutes.

Part of Breathe2 Network of citizen sensors for air pollution monitoring (see "More Information"). This channel records ambient temperature, relative humidity and pressure. Data details: median of 100 samples over 5 minutes.

Part of Breathe2 Network of citizen sensors for air pollution monitoring (see "More Information"). This channel records ambient temperature, relative humidity and pressure. Data details: median of 100 samples over 5 minutes.

Part of Breathe2 Network of citizen sensors for air pollution monitoring (see "More Information"). This channel records ambient temperature, relative humidity and pressure. Data details: median of 100 samples over 5 minutes.

Part of Breathe2 Network of citizen sensors for air pollution monitoring (see "More Information"). This channel records ambient temperature, relative humidity and pressure. Data details: median of 100 samples over 5 minutes.

Home temperature, pressure and lux measurement channel in shade. Arduino Pro mini V3, ESP8266 Nodemcu, BHP180, BH1750FVI, DHT22. Yet to come: UV Index.

This station uploads weather data and meteorological data for the mentioned parameters viz. air temperature, relative humidity, air pressure, solar radiation, soil temperature, light intensity, rainfall and wind speed.

Gricd Frij is an easy to use solution that complements locally available material to improve the shelf life of farm produce while sharing environmental data.

Publishing temperature and relative humidity readings from ESP32 + DHT11