this week is all about application and implications
i propose a project that focus about all proposed the following topics to be covered by which they should be included in project
- 2D and 3D design
- Additive and subtractive fabrication processes
- Electronics design and production
- Embedded microcontroller interfacing and programming
- System integration and packaging
there are questions to be answered as follows
- what does it do?
- Who has done what beforehand?
- What will you design?
- What materials and components will be used?
- Where will they come from?
- How much will they cost?
- What parts and systems will be made?
- What processes will be used?
- What questions need to be answered?
- How will it be evaluated?
what does project do
the proposed project is VENDING MACHINE, as the project implies the machine will be used to sell different
products such as snacks, biscuits, chocholate, candies and so...
the project can be owned by anyone tends to sell some of the products mentioned
where the owner place different items in the machine to be sold by tapping a card and call for the product needs
the idea of the project is conserned about local citizens after findind that it is hard for anyone who is willing to start small bussiness
selling low budget product, i found it helping for them
according to government rising policy and regulations they tend to make their own choices and they start selling moving around while being chased by security
so the vending machine tends to help them to fight against this issue facing them
Who has done what beforehand?
the vending machine done beforehand, is almost similar to my project so the only difference is that they use qr code
not like mine tapping card machine done before HERE
what will you design
for my ideal project structure i will use different tools, so the project structure is designed with mdf wood material
and acrylic for fromt cover, the materials will be cutted with cnc as well as acrylic,
i will design Electronics parts making schematic and pcb design, where i will make pcb design, as a project controller
What materials and components will be used?
for the materials used, i have used the following:
for structure and covering
- mdf wood
- acrylic sheet
- thick wire
for electronics
- microcontroller (atmega328p, esp32)
- resistors
- geared dc motors
- lcd
- push buttons
- crystal oscillator
- pcb board
- capacitors
- connectors
- voltage regulators(5v, 3.3v)
- transistors
- RFID reader
where will they come from?
most of the materials are supplied by fablabab rwanda some of others are bought from local store such as mdf wood, acrylic sheet
and other few components
how much will they cost?
| NO# |
item name |
quantity |
unit price |
total price |
market |
| 1. |
esp32 wroom |
1 |
15000 |
15000 |
link |
| 2. |
atmega328p |
1 |
8000 |
8000 |
link |
| 3. |
transistors 2N7002 |
4 |
400 |
1600 |
link |
| 4. |
capacitors |
3 |
600 |
1800 |
fablabab invetory |
| 5. |
capacitors |
2 |
100 |
200 |
fablabab invetory |
| 6. |
resistors |
2 |
100 |
200 |
fablabab invetory |
| 7. |
Conn_01x04 |
3 |
100 |
300 |
fablabab invetory |
| 8. |
Conn_01x02 |
3 |
100 |
300 |
fablabab invetory |
| 9. |
AVR-ISP-6 |
1 |
200 |
200 |
fablabab invetory |
| 10. |
Conn_01x01 |
1 |
100 |
100 |
fablabab invetory |
| 11. |
crystal oscillator |
1 |
1000 |
1000 |
fablabab invetory |
| 12. |
voltage reg 5v |
1 |
500 |
500 |
fablabab invetory |
| 13. |
voltage reg 3v3 |
1 |
500 |
500 |
fablabab invetory |
| 14. |
12v dc geared motors |
6 |
8000 |
54000 |
link |
| 15. |
acrylic 35x35 |
1 |
1000 |
1000 |
fablabab invetory |
| 16. |
rfid reader |
1 |
7000 |
7000 |
link |
| 17. |
lcd screen |
1 |
11000 |
11000 |
link |
| 18. |
mdf wood |
1 |
48000 |
48000 |
local market |
| 19. |
pcb board |
2 |
2000 |
4000 |
link |
What parts and systems will be made?
- computer aided design
>> 2D and 3D design,
- computer controlled cutting
>> cnc machine
- Embedded programming
>> arduino programming
- electronics design and production
>> circuit design and PCB design of the project
- input devices
>> coin acceptor and buttons
- output devices
>> lcd display, dc motors
What processes will be used?
for vending machine design i will use solidworks for 2d design and 3d modeling for the whole structure view and
cnc machine for cutting all parts designed
in electronics controller design i will use kicad designer for designing schematic diagram and PCB layout then after export svg files
for generating gcodes for milling the PCB as roland machine
for the electronics i have used 2 microcontrollers atmega328p and esp32 to communicate each other
for software i will be using arduino programming for projects all logics and all processes
and another place for buttons
What questions need to be answered?
as my proposal implies my project is about solving problem facing local traders where it is hard for them to start bussiness
without viloting government policies
so the project is there to solve this issues
as well as technology is involved then would it be applied to the project so the system made eplains it.
How will it be evaluated?
the project will be evaluated as placing at fabalab, in our fabalab we have a coffee shop so the project will be placed along for the evaluation