Sturgeons require moderate temperatures for ideal growth and ample supply of clean water.
Local farmers often use stream water from high mountain, for which it is difficult to control the cleanliness/
clarity of supply water. Therefore, they spend a lot of time controlling the water supply manually. Our team offers a smart solution for this problem.

How does it work?
Sensors are installed to measure the cleanliness/clarity of the water. At a previously fixed level, the valves will be opened to supply water into the pool of
sturgeons. If the water is not clear, the valves will remain closed. If the valves are closed for a certain period of
time, the system will send an alarm to the farmers, so that they
can find a different source of water supply for the fish pools.

The natural crab population is decreasing while the market demand is increasing. Crab farms face several problems in raising crabs as they can kill each other due to high density during the period of shell molting.

How does it work?
The farm is divided into small tubs to prevent the crabs from killing each other. The water supply to the farm is controlled by solubility sensors to ensure that only qualified water enters the farm.- The system is equipped with other sensors to provide water at an appropriate temperature to help the crabs reproduce. Light and humidity sensors, as well as solar panels, are installed to help farmers control their farm in a smarter way.

Nowadays, children and young people spend a lot of time on smart devices, leading to severe kyphosis (an exaggerated, forward rounding of the upper back). Our team developed a smart wearable to protect children from kyphosis and school violence, abuse and bullying.

How does it work? Wearing the device, it will send an alarm sound if they are in a setting lacking of light. Or when they bend the back to a certain level, it will also send an alarm.

At the same time, the device works as an SOS button: If a student gets into a dangerous situation, they can press the SOS button abd the speaker will make a loud noise. In case the user cannot press the button, we used a sensor processed by a micro:bit to predict the gestures to identify it as a dangerous situation.

And last but not least, this device also works as a GPS locator so that the parent can manage their children.

We have noticed at our school that students leave their classrooms without turning off the lights and fans and leaving the doors open. This leads to a waste of electricity. Therefore, our team decided to develop a project where the lights and fans are automatically switched on and off and the classroom doors are closed or opened via I.o.T.
In all public areas, the lighting is set to turn on and off at a specific time, based on daylight sensors. In the classrooms, the lights and fans are switched on and off at a specific time and according to lesson times. The fans are also set to turn on and off based on the temperatures in the classrooms via temperature sensors.
Additionally, we installed movement sensors: when there is movement, the sensors send signals to the computer centre to turn on the lights and fans and to close or open the classroom doors.

Watering flowers and plants is a time-consuming – and repetitive task. So the idea was born to help the gardener by taking the daily manual work off his hands, developing an automated plant watering device.

The central processor consists of a Micro:bit and an additional card connected to sensors for humidity, temperature, light and rain. The second processor – also a Micro:bit – is connected to the pump that controls the whole system.

The first processor measures the humidity in the soil, the temperature, the light and the rain and transmits the signal to the Lora card to automatically turn the pump on and off. When the pump is running, it sends the signal to the other processor to control the watering of the plants in the specified order and duration.

During the rainy season, mosquitos usually increase in numbers and schools are overwhelmed with mosquitoes. Therefore, a team developed an automatic sprayer, which emits chemicals to kill mosquitos.

The sprayers will be placed in classrooms, toilets and anywhere needed to spray the relevant chemicals, steered by a timer. Once the tank of chemical is empty, an alarm will sound, so that it can be re-filled.

In the future, an app shall connect the sprayer also to smartphones.

Bar fires often lead to a high death toll, because of suffocation, as there is no emergency exit.
Our group decided to develop a project called Automatic Emergency System, based on how it works on airplanes; oxygen masks release whenever there is a drop in cabin pressure.

In case of emergency/fire, the system will automatically release custom-designed safety masks (with reflective strips) onto the floor which the people in the room can grab and put them on first, before they find their way out.

In each room, the smoke detectors are connected to the central system. In case of smoke detection, it will set the alarms on, and automatically release all the fire escape ladders, so people find their way out via thee escape ladders and don’t have to jump out of the building, which in many cases lead to deaths or severe casualties.

The detector, installed in cameras in the field, can help to detect diseases of rice by taking images on a regular basis. These pictures will be uploaded onto the cloud services for analysis (using Scratch AI). The taken pictures will be sent to ThinkSpeak to synchronize with the stored data to generate the analysis results.

Once the diseases are detected, the system will provide advice on what chemical shall be used to cure the diseases.

Up to now, the system was able to analyse six samples. Through time, we will be able to add and analyse more and different diseases, not only for rice, but other produce too.

School toilets often has three problems: electricity and water waste and smoke (illegal smoking)
by students. Our group developed a Micro:bit-based project to solve these problems.

The system has two functions:

1. All fans and lamps are connected to motion sensors, and the ventilation and lighting system
   are only switched on when the users move.
2. Cigarette smoke sensors are installed in the restrooms, and as soon as smoke is detected, the alarm goes off and sends an alert to the manager at the same time

Future upgrade: Our team would like to upgrade the water supply with hand sensors so that water only flows when users put their hand to the faucet. At the same time, the water runoff from the sink will be used to irrigate the school garden.

Background: People with disabilities can find it hard to use/control smart devices. Therefore, we chose this topic to help these people to access smart devices more easily.

How the system works:
The program is coded in Python, with face recognition When a user moves their face up-down-left-right… the mouse arrow will move accordingly. Eye blinks are equal to left/right click, closing both eyes means the mouse will glide up/down depending on the nose movement.