Thursday, September 18, 2014

All Electronic Works

LED Cube 3*3*3

Link: http://www.instructables.com/id/Arduino-Dice/

Components:

Parts Required

  • 1x Arduino Board
  • 27x LED’s
  • 1x Stripboard
  • 3x 22k ohm Resistors
  • 9x 220 ohm Resistors
  • 3x NPN Transistors (for example: 2N2222, BC547, 2N3904)
  • Wire
img_0482
Diagram:
Schematics Led Cube

Coding: http://www.abrushfx.com/Arduino/ledcube3.html





Soldering Iron (Circuit):




What makes a good soldering joint? 


The joint must have a slope and should look like a mini volcano that looks fairly shiny.








Logic Problems:

Problem #2:

Patients need extra attention after serious operations. We would like to have push buttons for patients to use that will sound a warning at the nurse’s station only during the daytime. At night there is a different system for patients to use. Design a patient warning system that will only work during the daytime.


LDR
Push button
Buzzer
Night (0)
1
0
Day (1)
1
1
Day (1)
0
0

Problem #3:
Some hospital rooms get very warm in the summer. We need an automatic fan to cool the patients. The fan should also be able to be turned on manually. Design this fan control system.



Thermistor
Manual Switch
Acting as Fan
Hot (1)
1
1
Hot (1)
0
1
Cold (0)
1
1
Cold (0)
0
0


Problem #4:
Mr and Mrs Gonzales would like an automatic system to turn on their outside light at night and then off at dawn. Design an automatic lighting system with a manual override. Be careful the light must turn on during the day BUT not off at night.



Question
Definition/ Evidence/ etc.
What does it do?
It is widely used in electronic circuits and this popularity means it is also very cheap to purchase, typically costing around 30 pence (Less than 1000 IDR).


Circuits: 555 (8 pins) & 556 (14 pins)




The 555 Integrated Circuit (IC) is an easy to use timer that has many applications.


Integrated Circuit:
What’s inside?
The 555 timer chip is an Integrated Circuit (IC). It has over 20 transistors, 2 diodes and 15 resistors! It is a mini circuit that is surrounded by silicon.


Diodes:
Integrated Circuit:
Silicon:
Pin Configuration (Diagram)
Circuit Diagram (Flashing LED)


Diagram:





Thursday, August 28, 2014


Copies of circuits:


1.)


2.)


3.)


4.)



Glossary:
Electronics Glossary:


Picture
Description
Name of equipment/ Vocab
Symbol if there is one
Resistor:


Resists the amount of electricity flowing through.
Resistor Color Code

Led:


A special type of bulb that lets electricity flow through one way and that also lights up.
LED Light Symbol


Basic Electronic Symbols


Fixed Capacitor
Transistor:


Acts like an electronic switch.
Transistor


C = Collector
B = Base
E = Emitter
Cell:


A single battery.
Cell

Lamp/ Bulb

Toggle switch

Push switch


Picture
Description
Name of equipment/ Vocab
Symbol if there is one
A speaker that has only one type of sound.
Buzzer
Gives a range of resistances.
Variable Resistor

Transistor (PNP)
Changes resistance as the weather changes.


Hotter = less resistance.
Thermistor
More light = less resistance
LDR/ Photoresi-stor




Picture
Description
Name of equipment/ Vocab
Symbol if there is one









Notes



Topic
Notes
Calculation
Resistors in Series
  • Add them up: R total = R1 + R2 + R3
    • Add up resistors to get the total amount of resistors.


  1. R1 = 70 OHM, R2 = 30 OHM
  2. R1 = 12 OHM, R2 = 76 OHM
  3. R1 = 56 OHM, R2 = 33 OHM
  4. R1 = 105 OHM, R2 = 15 OHM
  5. R1 = 2 OHM, R2 = 175 OHM


  1. R1 = 3 OHM, R2 = 5 OHM, R3 = 6 OHM
  2. R1 = 100 OHM, R2 = 100 OHM, R3 = 100 OHM
  3. R1 = 1k OHM, R2 = 100 OHM, R3 = 1.5k OHM
  4. R1 = 1k OHM, R2 = 1M OHM, R3 = 4.7k OHM, R4 = 12 OHM
  5. R1 = 3.3k OHM, R2 = 1.2M OHM, R3 = 15k OHM, R4 = 330 OHM


Ώ
1. 70 + 30 = 100 OHM


2. 12 + 76 = 88 OHM


3. 56 + 33 = 89 OHM


4. 105 + 15 = 120 OHM


5. 2 + 175 = 177 OHM


6. 3 + 5 + 6 = 14 OHM


7. 100 + 100 + 100 = 300 OHM


8. 1000 + 1000’000 + 4700 = 1’005’700


9. 1000 + 1’000’000 + 4700 + 12 = 1’005’712


10. 3300 + 1’200’000 + 15’000 + 330 = 1218630
Parrelle resistors
Formula:
1/R Total = 1/R1 + 1/R2
1/R Total = 1/30 + 1/50
1/R Total =  80/1500 (Common denominator)
R = 1500/80
R = 18.75


  1. R1 = 1kΏ, R2 = 1kΏ
  2. R1 = 1kΏ, R2 = 1.5kΏ
  3. R1 = 56Ώ, R2 = 33Ώ
  4. R1 = 105Ώ, R2 = 15Ώ
  5. R1 = 2Ώ, R2 = 175Ώ


  1. R1 = 1kΏ, R2 = 1kΏ, R3 = 1kΏ
  2. R1 = 100Ώ, R2 = 100Ώ, R3 = 100Ώ
  3. R1 = 1kΏ, R2 = 100Ώ, R3 = 1.5kΏ
  4. R1 = 1kΏ, R2 = 1MΏ, R3 = 4.7kΏ, R4 = 12
  5. R1 = 3.3kΏ, R2 = 1.2MΏ, R3 = 15kΏ, R4 = 330
1.
1/R Total = 1/R1 + 1/R2
1/R Total = 1/1000 + 1/1000
1/R Total =  2/1000
R = 500/1
R = 500


2.
1/R Total = 1/R1 + 1/R2
1/R Total = 1/1000 + 1/1500
1/R Total =  5/3000
R = 3000/5
R = 600


3.
1/R Total = 1/R1 + 1/R2
1/R Total = 1/56 + 1/33
1/R Total =  89/1848
R = 1848/89
R = 20.764 (About)


4.
1/R Total = 1/R1 + 1/R2
1/R Total = 1/105 + 1/15
1/R Total =  120/1575
R = 1575/120
R = 13.125


5.
1/R Total = 1/R1 + 1/R2
1/R Total = 1/2 + 1/175
1/R Total =  176/300
R = 300/175
R = 1.714 (About)


6.
1/R Total = 1/R1 + 1/R2 + 1/R3
1/R Total = 1/1000 + 1/1000 + 1/1000
1/R Total =  3/1000
R = 1000/3
R = 333 1/3


7.
1/R Total = 1/R1 + 1/R2 + 1/R3
1/R Total = 1/100 + 1/100 + 1/100
1/R Total =  3/100
R = 100/3
R = 33 1/3


8.
1/R Total = 1/R1 + 1/R2 + 1/R3
1/R Total = 1/1000 + 1/100 + 1/1500
1/R Total =  35/3000
R = 3000/35
R = 85.714 (About)


9.
1/R Total = 1/R1 + 1/R2 + 1/R3 + 1/R4
1/R Total = 1/1000 + 1/1000’000 + 1/4700 + 1/12
1/R Total = (564’000 + 564 + 120’000 + 47’000’000)/564’000’000


(Flip)


R Total = 564’000’000/47’684’564
R = 11.8277 (About)


10.
1/R Total = 1/R1 + 1/R2 + 1/R3
1/R Total = 1/3300 + 1/1’200’000 + 1/15’000 + 1/330
1/R Total =  (10’000 + 27.5 + 2200 + 100’000) / 3’300’000
R = 3’300’000 /112’227.5
R = 29’405 (about)



Demonstrate truth tables and logic gates

Not Gate:






Or Gate:




And Gate:








Circuit Pic
Name
A
B
C
OR
Output
Draw a logic circuit for (A+B)C
0
0
0
0
0


0
0
1
0
0


0
1
0
1
0


0
1
1
1
1


1
0
0
1
0


1
0
1
1
1


1
1
0
1
0


1
1
1
1
1



Circuit Pic
Name
A
B
C
D
Output
Draw a logic circuit for A + BC + D.
0
0
0
0
1
“                    “
“         “
0
0
0
1
0
“                    “
“         “
0
0
1
0
0
“                    “
“         “
0
0
1
1
0
“                    “
“         “
0
1
0
0
0
“                    “
“         “
0
1
1
0
1
“                    “
“         “
0
1
0
1
0
“                    “
“         “
0
1
1
1
1
“                    “
“         “
1
0
0
0
1
“                    “
“         “
1
1
0
0
1
“                    “
“         “
1
0
1
0
1
“                    “
“         “
1
0
0
1
1
“                    “
“         “
1
1
1
0
1
“                    “
“         “
1
1
0
1
1
“                    “
“         “
1

1
1
1
“                    “
“         “
1
1
1
1
1




























Base 10: ???


etc
1000’s
100’s
10’s
1’s


3
6
5












Base 2: 2^x


etc.
4’s
3’s
2’s
1’

0
0
0
1

0
0
1
0

0
0
1
1

0
1
0
0

0
1
1
0

0
1
0
1

0
1
1
1

1
0
0
0

1
1
0
0

1
0
1
0

1
0
0
1

1
1
1
0

1
1
0
1

1

1
1

1
1
1
1

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