Hosted by OSOS , contributed by gretabg on 29 January 2020
The aim of project " Мoisture meter" is to create a portable electronic sensor which records the soil moisture. The device is programmed with a printed circuit board (PCB) Micro:bit and records the soil moisture with light and sound signal. When the soil is dry the light and sound sensors turn on, a sign that the soil needs watering. Vice versa, when the soil is wet the sensors are turned off. The device has been tested in a specifically designed model of a greenhouse. The sensor can be used both at home or when plants are industrially cultivated in greenhouses.
Poject " Мoisture meter " offers a practical solution to a real global problem - saving water.
Усещам
The feeling of taking part in the creation of a prototypic smart greenhouse, that uses a portable microcontroller and sensors, which measure the soil’s moisture and gives a solution that solves a global problem – saving water is challenging and exciting. Our motivation was the idea of using the team’s creation globally (in greenhouses, farms and at home).
Представете си
Our project "Мoisture meter" is a prototype of a smart greenhouse that saves water. It has a portable moisture sensor. The device has been programmed on the microcontroller micro:bit with javascript and it can measure the soil’s moisture level. It notifies the users by a blinking light and an alarm. This happens only when the soil is dry.
Създавайте
To accomplish the purpose of the project "Мoisture meter", the team performed two main tasks and related activities.
First determine the problem and how to solve it. The main activities are: researching information from various sources, drawing up an action plan, providing funding for the project idea. We have applied for and won funding for the Rotary Club of Burgas Pyrgos project, Give Your Opportunity.
Second - Design of a portable soil moisture sensing electronic sensor - design and manufacture of a greenhouse for testing the sensor, programming the Micro: bit card, connecting the Micro: bit card to light and sound sensors, connecting the Micro card bit to an external device - a built-in circuit of two iron nails, cables with clamps attached to them and a battery, testing the sensor to determine the initial values for dry and wet soil, processing and analysis of data, correction if necessary.