Sun rise and set time in Hong Kong update at 12pm everyday

RH monitor ESP8266

Soil sensor direct raw data

NodeMcu based weather station，by using BMP180 , DHT11 ,ESP8266 to implement the sensing and data uploading. This weather station was located in Hong Kong.

This is a pilot project using Arduino-based micro-sensors to measure nitrogen dioxide (NO2) concentration in real-time

The air quality sensor monitor the concentration of PM2.5 in indoor locations. It is developed and made in Hong Kong. Contributor: Leo Siu, Leo Chan, Eddie Yung Citizen Science Project coordinator: Maria Li