Temperature&Humidity measurement in my greenhause with usage of ESP8266 running NodeMCU and LUA script with DHT22 sensor.

LED Temperature

ESP8266 and ds18b20 for temperature monitoring

dht22

Temperature, humidity & pressure in my backyard (Paris, France)

Some environmental data coming from tests in my apartment, located in Castelplanio, Le Marche, Italy.

two ds18b20 indoor & outdoor temprature control. Azerbaijan, Lankaran

Freezer-to-Frigidaire, ESP8266 powered freezer cell periodically shut down to stay within typical refrigerator temperature range (e.g. 2 to 5°C) A DHT22 inside the freezer is polled and a 5V relay and a cascaded BIG 220v SSR are switched accordingly.

Temperature sensor at chennai

Log temperature, humidity and vbat data from Adafruit Feather Huzzah

PulseSensor connected to Arduino Nano along with algorithm code to read pulses from sensor then formulate BPM and send BPM values to NodeMCU ever Minute. and the nodeMCU with Lua firmware waits for BMP data, once received it updates BPM values to ThingSp