ESP-12E + 2 x DS18B20 + MQ-x Gas Sensor , when CO/LPG/NPG been detected , it will twitter warning messages.

Log some data

To measure the temperature and humidity by using DHT11 sensor

The weather station is a prototype and you must not expect 24/7 operation neither accurate measurements. Improvements are coming soon. Check this channel for data analysis: https://thingspeak.com/channels/279384

uses MAX6675 as temperature probe front end. Hardware is not yet finish, waiting for PCB and some parts.

nodeMCU temperature logger

read adc voltage from pin A0 on NodeMCU esp8266

Displaying sensor readings on the ThingSpeak Server

temperature probe, humidity with battery voltage AM2320

ConCom

ESP 8266 NodeMCU with a DHT22

ESP8266+DS18B20

DHT22 Temperature and humidity sensor Graph

Collect data of number of products in a specific interval and analysis the data.

Esp8266,Dht11,LDR, BMP180,RF 433 mHz