This document discusses the design of an up/down counter product for a customer. It includes: - The customer's requirements for function, size, cost, performance, timing, aesthetics, and sustainability. - An analysis of the implications and risks of each significant parameter. - Potential techniques and technologies to use, including microcontrollers and logic gates. - Proposed designs using PIC 16F877A and PIC 16F84 microcontrollers. - An evaluation of the designs using a quality matrix analysis method. - The proposed design is an up/down counter using a PIC 16F877A microcontroller.

1. Mohamed fouad mohamed
ENG :MORINE FAYEZ

2. Up &down counter
Panasonic

3. Customer requirement
These are the most Important things the customer needed in his product
Function ; It is up and down counter
Production parameters : X=4cm Y=4cm 250g
Cost : 350
performance: It is fast Response
Timing: maybe it will takes 2week
Aesthetics: Silver Or Black
Standards regulations: there are a lot of Standards regulations
Sustainability: there are a lot of component ,it can be useful and use it again

4. Implication of specification with each
significant parameter
(1)
Function : I can implicate the function that apply on up dawn counter with the
same specification & function of component in the circuit.
Resources requirement
Internet: to search the data sheet for each component to know the specification
of each component .

5. Implication of specification with each
significant parameter
(2)
Performance: I can implicate the performance by make the product by the same
component (pic 16f877, 2*16 lcd, capacitor 33pf , crystal , resistors 10k , push
bottom ,switch) to give the required performance
Resources requirement
Internet: to search the data sheet for each component to know the specification
of each component
Program (micro c pro for pic): to modify the delay

6. Implication of specification with each
significant parameter
(3)
Production parameters
Size: I can implicate the size by make the counter with the same dimension
Weight: I can implicate the weight by make the counter with the same weight required by the
customer
Resources requirement
Internet: to search the data sheet for each component to know the size and weight of each
component

7. Implication of specification with each
significant parameter
(4)
Cost:
I can implicate the cost by search for the cost of each thing in the counter
Resources requirement
Market: to search the cost of component

8. Implication of specification with each
significant parameter
(5)
Timing : I can implicate the time by make sure that the schedule is divided correctly on the tasks of
product
Resources requirement
Schedule: to work make on it

9. Implication of specification with each
significant parameter
(6)
Standard and regulation
I can implicate the standard and regulation make sure the component and the material of
counter is apply the international standard and national standard and the safety regulations
Resources requirement
Internet: to know witch component apply the safety standard and regulation

10. Implication of specification with each
significant parameter
(7)
Aesthetics: I can implicate the aesthetics by make sure the circuit when put it in cover it is give the
same shape required from the customer and choose the material accepted the and color required
Resources requirement
Customer needs: to know the shape and colors which he wants
(8)
Sustainability: I can implicate the Sustainability by check that the counter can recycle again
Resources requirement
Internet: to know the component and to identify the component to divided them three parts
(recyclable , non-recycle ,refreshment )

11. The level of risk associated with each
significant parameter
(1)
 Function: the risk in function If there component founded in the market (pic 16f877) we need
the use with another pic (pic 16f84).
 Level of risk (10) because if it not give the same function the circuit will not work
(2)
performance: the risk in performance is if the counter take long time to do the order.
level of risk (8) because the product must provide performance as required .

12. The level of risk associated with each
significant parameter
(3)
Production parameter : the risk in size if we didn’t found the suitable cover to give the required size
Level of risk (6) because if the circuit has not the special size so it not apply the customer need
(4)
Cost: the risk in cost if we found any mistakes in the circuit or we didn’t found any component we
need to replace it and will be expensive so it will effect on the counter
level of risk (8) because if it give more cost the customer need

13. The level of risk associated with each
significant parameter
(5)
Aesthetic: the risk in athletic if we paint it the color may be removed by the time and Weather
factors
level of risk (7) because if the colors remove it will be bad aesthetic
(6)
timing: the risk in design time if there something happened to machines or workers it will effect on
the schedule so it will take a long time
level of risk (6) because there is small number of workers and we not on the schedule

14. The level of risk associated with each
significant parameter
(7)
standard and legislation : the risk in standard and legislation if I didn’t put the standard and legislation in
clear place or a didn’t apply it
level of risk (5) because it be difficult for follow many safety ways
(8)
Sustainability: the risk in Sustainability if I didn’t said how to make refresh or recycle for component in
safety ways
Level of risk : ( 10) because if we didn’t said it the customers may by recycle it by wrong ways and they
Exposed to disease

15. Abbreviations:
 Cm: centimeter
 G: gram
 L.E: Egyptian pound
 EN: Europe standard
 WEEE: Waste electrical and electronic equipment
 ES: Egyptian standard
 Pf: Pico farad

16. Technique: for my circuit I can use the pic 16f877A and pic 16f84
Pic16f877A: it is easy to connect and it has big memory to upload the program and it didn’t heat and
it has high performance and it has 5ports but it has big size
Pic 16f84: it is has low performance and it has 2ports only and it heat quickly
________________________________________________________________________________
Technologies : For my circuit u can use microcontroller and logic gates technology
Microcontroller :it is being programed by programmer using computer and it is easy to edit the
program
Logic gates: It hard technology way because it work by bits and it will be big circuit

17. Circuit diagram &function diagram
The power supply supplying the circuit 12v then
select the spdt and choose if you want to count up
or count down then the microcontroller wait the
order from the counter switch then the lcd display
the number

18. What the product will have according
to pervious reqirements
 Function : It is up and down counter
 Production parameters : x=48mm&y=48mm (300g)
 Cost :300LE
 Performance: Faster to do the order
 Timing :2 weeks
 Aesthetics:Silver
 Standards &regulations : there are a lot of Standards &regulations
 Sustainability: there are a lot of component , so we can recycle them easily

19. Technique1 (pic 16f877a)
 Advantage
 It is easy to connect
 And it has big memory to upload to program
 And it didn’t heat
 And it has 5 ports
 Disadvantage
 It has big size


20. Technique 2 (pic 16f84)
 Advantage
 It is small size
 It is cheap
 Disadvantage
 It has low performance
 It has 2poots only
 It heat quickly

21. Technology 1 (Microcontroller)

 Advantages of Microcontrollers
 The main advantages of microcontrollers are given.
 Microcontrollers act as a microcomputer without any digital parts.
 As the higher integration inside microcontroller reduce cost and size of the system.
 Usage of microcontroller is simple, easy for troubleshoot and system maintaining.
 Most of the pins are programmable by the user for performing different functions.
 Easily interface additional RAM, ROM,I/O ports.
 Low time required for performing operations.

 Disadvantages of Microcontrollers
 Cannot interface high power devices directly.
 Hard programing

22. Technology 2 (logic gate)
 Advantages

 This circuit is still a ratio less circuit as in case of Static.
 3) The static power loss is very less in a dynamic logic circuit.

 Disadvantages


 It needs a clock for the correct working of the circuit
 Some circuits are not practicable
 Difficult to implement

23. Pic 16f84
Performance
Speed
response
Size
Weight
total size
of
product
Weight of
board and
component
total
weight of
product
Sustainability
recycle
Aesthetics
for the
circuit and
tracks
for
outside
shape
cost
timing
Total cost
circuit and
component
design
circuit
total time
for product
Size of board
and
component
X=4cmY
=4cm
X=4cm
Y=4cm
250g 300g
300 LE
350LE
2weeks
3weeks

24. Pic 16f877A
Performance
Speed response
Size
Weight
total size of
product
Weight of board
and component
total
weight of
product
Sustainability
recycle
Aesthetics
for the circuit
and tracks
for outside
shape
cost
timing
Total cost
circuit and
component
design
circuit
total time for
product
Size of board and
component
X=4cmY=4
cm
X=4cm
Y=4cm
250g 300g
300 LE
350LE
2weeks 3weeks

25. Logic gate
Performance
Speed
response
Size
Weight
total size
of
product
Weight of
board and
component
total
weight of
product
Sustainability
recycle
Aesthetics
for the circuit
and tracks
for
outside
shape
Cost
timing
Total cost
circuit and
component
design
circuit
total time for
product
Size of board
and
component
quality
Use ttl or
cmos
accuracy
Truth table and
Karnaugh map
X=4cmY
=4cm
X=4cm
Y=4cm
week2
week3

26. Microcontroller
Performance
Speed response
Size
Weight
total size of
product
Weight of board
and component
total
weight of
product
Sustainability
recycle
Aesthetics
for the circuit
and tracks
for outside
shape
cost
timing
Total cost
circuit and
component
design
circuit
total time for
product
Size of board and
component
quality
Program
accuracy
Program
X=4cmY=4
cm
X=4cm
Y=4cm
2week 3week

27. Quality function development method

28. Mind mapping

29. Matrix analysis method
Design solution1
(Pic 16f877A)
Design solution 2
(microcontroller)
Function + +
Performance + +
Cost - +
Production parameters size
weight
+ +
+ +
Aesthetics + +
Standard & regulation + +
Design time + -
Sustainability + +

30. 1 2

31. Evaluate design solution
parameters Design1 Design2
Cost + -
Value engineering concepts + -
Sustainability + +
Future development potential + -
Timing + +
aesthetics - +
Total 13 9
Rank order 1 2
+=3
-=2

32. Keys feature of CAD
•Snap to Grid :cursor snaps to grid points
•Show Grid :displays grid in model space
•Orthographic :constrains lines to 90deg angles
•Polar Snap :constrains lines to other angle increments
Line(L) : to draw the line

34. Evaluation of my work on CAD
Cost of AutoCAD
FOR program
This design it easy it did not need premium software so we can use free software .
For the customer
The program did not costs the customer any money to see the product as a draw and to know
the actual shape.

35. Compatibility
For program
It is easy to use so the designer make these design quickly and understand any draw in
this program and make it beautiful shape
For the customer .
From the 3d design the customer the customer can see the product it is good shape or not

36. Function
For product
It is program can design 2d and 3d the outer shape of product so it is make it easy for
designer design the product.
For customer
These program help the customer to see the design of his product 3d and 2d and from any
dimension before manufacturing.

37. Thank you