em":{"@type":"Thing","@id":"https://www.thestandard.com.hk/comment"}}]}]17:T4c5,Towngas has developed an internet of Things control system to support hydroponic farming and is providing it to schools for free.

Pat Heung Central Primary School in Yuen Long is the first school to adopt the system and uses it to facilitate cross-curricular learning through smart farming in addition to building a 200-square-foot smart hydroponic room.

The room is filled with chilies and various salad greens and is thriving without the need for manual care thanks to the IoT control system.

The greenhouse uses sensors and micro-controllers to collect data on the temperature, humidity, nutrient concentration, pH value and oxygen content of the room and then adjusts the humidity and temperature accordingly, alongside replenishing water and nutrients.

At the same time, the hydroponic room is equipped with a solar power supply system to maintain the operation of the IoT controls.

It can also monitor power generation and consumption remotely, making the use of energy more environmentally friendly.

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Schools get free Internet of Things system