16. Applications and Implications¶
- Define the scope of a project
- Develop a project plan including a bill of materials (BOM).
Assignment Checklist.
| item | Activity | Status |
|---|---|---|
| task 1 | What will it do? | DONE |
| task 2 | Who has done what beforehand? | DONE |
| task 3 | What will you design? | DONE |
| task 4 | What materials and components will be used? | DONE |
| task 5 | Where will they come from? | DONE |
| task 6 | How much will they cost? | DONE |
| task 7 | What parts and systems will be made? | DONE |
| task 8 | What processes will be used? | DONE |
| task 9 | What questions need to be answered? | DONE |
| task 10 | How will it be evaluated? | DONE |
1. What will it do?¶
The project called “INTIWAN QARPA” will automate an irrigation system by times in minutes and hours. It has a solar panel charging system that can give it a autonomy of 48 hours.
2. Who has done what beforehand?¶
In the southern region of Peru, in Arequipa, they installed an irrigation system for large avocado crops, financed by CONCYTEC (National Council of Science and Technology). read more
In Brazil there is a company that has a development called HidroFarm, which is Falker’s digital soil moisture meter and sensor. It is modern, practical and efficient equipment to control and direct irrigation. HidroFarm accurately measures the volumetric humidity of the soil, helping agronomists and rural producers determine the right time to irrigate the crop and the appropriate amount of water to apply. read more
3. What will you design?¶
A system will be designed that contains 03 stages: 1. Time Control System for opening/closing valves. 2. We will use the ESP32 microcontroller and connect the RTC, LCD, joystick via I2C. In addition to connecting the output of the microcontroller to a relay that will activate a solenoid valve. 3. Battery charging system with solar panel to ensure an autonomy of 48 hours.
4. What materials and components will be used?¶
we have the following list of components:
| item | Component | Quanty |
|---|---|---|
| 1 | ESP32 | 01 piece |
| 2 | RTC temporizador DS3231 | 01 piece |
| 3 | LCD 16x12 | 01 piece |
| 4 | Battery 12Vdc 4AH | 01 piece |
| 5 | Solar panel 13.8Vdc | 01 piece |
| 6 | Voltage regulator LM2596 | 01 piece |
| 7 | Joystick | 01 piece |
| 8 | Relé 5Vdc | 01 piece |
| 9 | Selenoid valve | 01 piece |
| 10 | pvc pipe 2 inches | 1.7 meters |
| 11 | MDF 15mm 0.78 x 1.2m | 01 piece |
| 12 | PCB FR4 0.2mm thickness | 01 piece |
| 13 | Electronics components SMD 1206 | 01 set |
5. Where will they come from?¶
In Peru it is difficult to find local suppliers that sell SMD components. For this reason, FabLab U Continental has requested their import by DIGIKEY. Import delays and takes time to clear customs. The rest of the materials are sold locally in supermarket chains such as PROMART or SODIMAC.
6. How much will they cost?¶
- The solar charging system $ 42.
- 3D Printing $25.
- Electronic Components $ 25.
- Structure support $15.
- Design/programming hours (48 Hrs) $240.
- Deployment hours (20 Hrs) $100.
Total: $447 (American Dollars).
The hours of design, programming and implementation represent 76% of the cost of the entire project
7. What parts and systems will be made?¶
It will be manufactured:
- We will use ESP32 microcontroller and connect the RTC, LCD, joystick via I2C. In addition to connecting the output of the microcontroller to a relay that will activate a solenoid valve.
- The controller and greenhouse support system.
8. What processes will be used?¶
- For the supports in the pvc tube it will be in 3D printing
- For CNC electronics for pcb
- For CNC MDF base
- For the greenhouse support the CNC
- For the project logo “INTIWAN QARPAY” vinyl
9. What questions need to be answered?¶
I have the following questions: - Whether the 3D printing materials will withstand real conditions. I have to review, analyze and select suitable materials. - I am concerned about the degree of protection of the electronic system because it will be exposed to solar radiation, winds, dust and rain. - Whether the current design can be adapted to larger greenhouses. I should think about using wireless communication networks.
10. How will it be evaluated?¶
The scope of the project is a proof of concepts and we will evaluate with the end user to give us feedback, in order to validate the modular design and the real conditions to migrate to more robust materials.