This channel monitors indoor air quality using an MQ-135 sensor and NodeMCU ESP8266. It measures gas concentrations (CO₂, NH₃, ethanol, benzene, smoke, etc.) and sends real-time PPM readings to ThingSpeak for visualization and analysis. The system include

Uploads temperature and humidity from NodeMCU

From my ESP32 weather station - info in github

Measurement of Temperature, and Humidity using DHT22 and Rainfall using Rainfall sensor

CVO - NodeMCU weerstation met DT11 sensor

CVO de Verdieping NodeMCU & DHT22 weerstation

Pantauan suhu & kelembaban

Valores de temperatura, humedad, presión atmosférica e intensidad lumínica en el interior de una vivienda en Medina Sidonia.

Currently, this LoLIn Nodemcu is used to measure the capacity from recycled 18650 notebook batteries. Values maybe empty before new battery start.

Monitoring child health (heart rate), environment (temperature, humidity), and gas levels.

Logging greenhouse humidity and temperature with a NodeMCU / DHT22 sensor

ESP8266 Lua NodeMcu Amica CP2102 WIFI modul. Od 1.1.2019 druhá jednotka ESP na kanálu 666580

Italy, Comano Terme (TN). Strumentazione: NodeMCU, DHT 22, BME280.

Sensor Suhu dan Kelembapan menggunakan DHT 11, nodemcu esp8266, kabel jumper, mit app inventor dan Arduino IDE, Abdillah dan Yusuf

São Miguel do Oeste - SC Esp32 BME280