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'''Digital pin''' Pin: 7, relay Pin: 9, … '''Digital pin''' Pin: 7, relay Pin: 9, button 1 Pin: 10, button 2 Pin: 13, LED '''Analog pin''' Pin: A0, Moisture sensor Pin: A1, Co2 sensor Pin: A2, Photoresistor Pin: A3, Temperature sensor Pin: A4, Screen Rx Pin: A5, Screen Tx The connection of Arduino on Water pump power supply The Arduino is to be connected directly on the water pump power supply so the whole system need only one electric plug to works. The Water pump is a 5V power supply, the arduino can support that voltage but this leads to a warming of the internal component of the arduino and will possibly damage on the arduino with time. The easiest and fastest choice for now is two 5v power supply (one for arduino and one for the pump) For using only one power supply like a 12v one, some solution are linked below [https://blog.yavilevich.com/2017/03/efficient-dc-12v-to-5v-conversion-for-low-power-electronics-evaluation-of-six-modules/ A page presenting the different solutions] https://www.youtube.com/watch?v=uH01edMarxw
www.youtube.com/watch?v=uH01edMarxw +
<nowiki>You will need < … You will need

electronic control and command part (listed below)

water tank

a plant in a pot

a box for electronic (https://www.thingiverse.com/thing:4106140)

3d printed light sensor support (https://www.thingiverse.com/thing:3986667)

3d printed sprinkler (https://www.thingiverse.com/thing:3986672)

For the Command & Control part the material used are the following:

- 1 Arduino UNO link

- 1 moisture sensor link

- 1 CO2 Gas sensor Mq7 link

- 1 Lcd screen 2x16 (+i2c)) link

- 1 LDR light sensor (photoresistor) link

- 2 push buttons link

- 1 Temp + humidity sensor DHT11 link

- 1 5V water pump link

- 1 5v relay link

- 3 1k resistor link

- 1 Breadbord or prototyping PCB link

-2 5v power supply linklink - 1 5V water pump link - 1 5v relay link - 3 1k resistor link - 1 Breadbord or prototyping PCB link -2 5v power supply link</nowiki> +
All the files designed for this project are available on thingiverse. +
This kit was made by Pralnia Makerspace, P … This kit was made by Pralnia Makerspace, Poland under the supervision of Digijeunes. ''This tutorial has been produced as part of the DEEDU project, co-financed by the Erasmus + Programme of the European commission. Project n°: 2018-1-FR02-KA205-014144.'' ''The content of this publication does not reflect the official opinion of the European Union. Responsibility for the information and views expressed therein lies entirely with the authors. For more information, email us at'' info@digijeunes.comrmation, email us at'' info@digijeunes.com +
https://drive.google.com/open?id=1S6yNrqawu6pW2FhQUX1jlsWAc_XM-ViZVKtaYm3dquc +
https://www.youtube.com/watch?v=abQ7bf_y3W … https://www.youtube.com/watch?v=abQ7bf_y3WM In this section is presented how shall be used the Deedu system and what will be the response at different cases UC01 : Control data from sensors & Number of spraying By using one button and looking on the screen, the user shall be able to check instantly the value measured by all sensors. UC02 : Spray the plant when needed & Water tank level control The system should be able to water the plant when it's needed (The moisture sensor value indicates when watering is needed). The water pump is tricky to start (if no water is present in the tube, it won't be powerful enough to start), so the best is to prevent absolute emptiness of the water tank. Therefore in order to control the water level and prevent water from pumping if water level is too low. The user will get a warning to fill the water tank. The Arduino code You can download the arduino code used in the following, every function is commented. Download the code below on your arduino board
wnload the code below on your arduino board +