Arduino Basic Connections

7/24/2019 Arduino Basic Connections

1/39

1Pin GoesHIGH

when buttonpressed

+12VARDUINO

THEUNOFFICIAL

basic connections

Pushbutton to GND

IN

Pushbutton to 12V

470

1K

Should you need to connect Arduino inputs to a DC voltage higher than 5V

When using this circuit for 24 volts input increase R to 2200

Toreducethe

interferences

addacapacitor

100nF

IN

Pin Goes

LOWwhen button

pressed

10K

5V

Pushbutton to 5V

IN

Pin GoesHIGH

when buttonpressed

10K

5V

Using Internal Pullup

IN

Pin GoesHIGH

when buttonpressed

5V

Trimmer or Potentiometer

IN

AnalogInput

5V

Photoresistor

IN

1K

AnalogInput

5V

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Optocoupled inputsUsed when galavanic separation between external circuitry and Arduino circuit is required

K

A

E

C1K

IN

MAX +12V

VinLOW

10K

5V

4N25

A

K

NC

B

C

E

IN

Pin GoesLOW

when buttonpressed

ver 1 rev 0


2/39

Connect a Led

470

OUT

K

A

A K

Connect a Led

470

OUT

K

A

A K

Dual LEDs or bi-color LED

470

OUT

K

A

A K

47

0

K

A

A K

HIGH

LOW

NPN

2.2K

OUT

A

K

Connect a Lamp (DC Low Voltage)

A K

1N4007 2N2222

LED clusters

2.2K

OUT

A

K

470

+12V

A K

NPN

BC337

E

B

C

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5V

5V

#Leds Resistor Value

1K

820

750

680

470

390

Led goesON

when pinis set toLOW

Led goesON

when pinis set toHIGH

Lamp goesON


Leds goesON


ver 1 rev 0

EC

B

C

B

E


3/39

OUT

+48V

Connect a Mosfet

22K

G D SIRL540

S

GD

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Mosfetexcited


A

K

Rel

NPN

E

B

C2.2K

OUT

+5V ... 12V

BC337

E

B

C

A K

1N4007

Connect a Relay

ver 1 rev 0

Relay goesON


Connect a Buzzer

100

OUT

Buzzer

Connect an Audio Amplifier

100

OUT

1F

1K

RCA

OUT MAX 2.5A

100

Reccomended

only for Switch orin Low frequency

applications.


4/39

Connect a Triac

A2

GA1

TRIAC

K

A

4

6

OUT470 1K

100nf

100 1/2 W

100nf 630V

AC IN

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TLP3020

A

K

NC

B

NC

E

Yuou canuse aPWM

pin

ver 1 rev 0

Connect a Speaker

NPN

E

B

C100

OUT

+5V

100K

22K

8

10F 16V

100

100F 16V

1K

10F 16V

EC

B

C

B

E

2N2222


5/39

100K

OUT

Connect a DC Motor

A K

1N4007

Set Pinto HIGH

Motor ON

A

K

1F

S

GD

You can alsouse a PWM

pin

100

OUT

S

GD

100

OUT

S

GD

100

OUT

S

GD

You can alsouse aPWM

pin

Connect a RGB Led Strip+12V

B

R

G

+12

B

A

100n

F

100nF

10K

IN

10K

IN

Connect an Encoder

C Counterclockwise

Clockwise

Fase 1(A)

Fase 2(B)

CA

B

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ver 1 rev 0

100

G D SIRL540

100K

100K

100K

G D SIRL540


6/39

TTL / CMOS converter (6 inputs/outputs)

VDDVCC

GND

Aout

Ain

Bout

Bin

Cout

Cin Dout

Din

Eout

Ein

Fout

Fin

MODE

MC14504BIN

+5V +12V

OUT

2,2K

OUT

IN

CMOS voltage

TTL 0-5V

TTL / CMOS converter

10K

2N7000

IN/OUT IN/OUT

3,3V 5V

D

G

S

10K

10K

Bi-Directional Voltage Level Converter 3.3V to 5V

2N7000

IN/OUT IN/OUT

5V

D

G

S

10K

4,7

K

10K

Bi-Directional Voltage Level Converter 3.3V to 5Vwith voltage divider 6ARDUINO

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ver 1 rev 0

EC

B

C

B

E

2N2222

NPN


7/39

IN

22K

100K

3,3

K

1K

10F

+2,5V

AnalogInputMIC

Connect a Microphone

OUT

4,5 - 6VConnect to an external power supply!

DigitalOutput

Connect a Servo

5V

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EC

B

C

B

E

2N2222

NPN


8/39

Charlieplexing

OUT

OUT

OUT

OUT

A K

OUT1

OUT2

OUT3

270

270

270

270

270

270

270

Out1 Out2 Out3

H=High, L=Low, i=Input

5

9

10

1

6

3

4

7

2

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

5V

7 Segments Display

270

4321 5

78910 6

common

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9/39

16

13

7

5

1

1K

6

common

2 153

7 Segments Display (Common Anode) with Multiplexing

1K

1K

1K

270

270

270

270

270 x 4 14 11 8

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

5V

4321 5 876

13141516 12 91011

LTC-2623

E

B

C

BC337

270

270

270

270

OUT

OUT

OUT

OUT

OUT

OUT

OUT

OUT

A K

LED Array

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10/39

7 Segments Display (Common Anode) with MAX7221

16

13

7

5

1

6 2 153

14 11 8

4321 5 876

13141516 12 91011

LTC-2623

5V

DOUTDIN

DIG7

DIG5

DIG1 SEGA

SEGF

SEGB

SEGG

CLK

DIG0

DIG4

GND

DIG6

DIG2

DIG3 Iset

V+

MAX7221

GND

SEGC

SEGE

SEGDP

SEGD

LOAD

CS

0,1F

10F

RX

SCKSS

MOSI1

11

8

14

15

7

16

13

2

5

3

DOUTDIN

DIG7

DIG5

DIG1 SEGA

SEGF

SEGB

SEGG

CLK

DIG0

DIG4

GND

DIG6

DIG2

DIG3 Iset

V+

MAX722

1

GND

SEGC

SEGE

SEGDP

SEGD

LOAD

CS

1

12 13

24

Current 1.5v 2.0v 2.5v 3.0v 3.5v

40ma

30ma

20ma

10ma

12K 12K 11K 10K 10K

18K 17K 16K 15K 14K

30K 28K 26K 24K 22K

68K 64K 60K 56K 51K

RX

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6

ver 1 rev 0


11/39


12/39


13/39


14/39

OUT1IN1

GND

IN2

IN3

IN4

IN5

IN6

IN7 OUT7

COM

OUT5

OUT6

OUT2

OUT3

OUT4

ULN2003

OUT1IN1

GND

IN2

IN3

IN4

IN5

IN6

IN7 OUT7

COM

OUT5

OUT6

OUT2

OUT3

OUT4

ULN2003

D11

D9

D8

D10

Drive a Unipolar Stepper (Basic 1)

External Motor Supply

Not Arduino Supply!

5

6

2

4

3

1

OUT1IN1

GND

IN2

IN3

IN4

IN5

IN6

IN7 OUT7

COM

OUT5

OUT6

OUT2

OUT3

OUT4

ULN2003

D11

D9

D8

D10

Drive a Bipolar Stepper (Basic 1)

External Motor SupplyAll Resistor 1/4W

Not Arduino Supply!

22

22

22

22

22 =

K A

12

Zener 12V

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15/39

GPB0

GPB7

GPB1

GPB2

GPB3

GPB4

GPB5

GPB6

NC

VDD

VSS

NC

SCL

SDA

GPA7

GPA1

GPA0

GPA3

GPA2

GPA6

GPA5

GPA4

A1

A0

RES

A2

INTA

INTB

MCP23017

Connect a graphical LCD via I2C

GPB0

GPB7

GPB1

GPB2

GPB3

GPB4

GPB5

GPB6

NC

VDD

VSS

NC

SCL

SDA

GPA7

GPA1

GPA0

GPA3

GPA2

GPA6

GPA5

GPA4

A1

A0

RES

A2

INTA

INTB

MCP23017

234567891011121314151617181920 1

10K

5V

SCL

SDA

7

89

10

11

12

13

14

15

16

17

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16/39

DIY Arduino

PC6

GND

PD0

PD1

PD2

PD3

PD4

VCC

PB0

PB6

PB7

PD5

PD6

PD7

PC5

GND

AREF

PC1

PC0

PC4

PC3

PC2

PB2

PB1

PB4

PB3

AVCC

PB5

ATMEGA328

5V

10K

100nF

22pF 22pF

16MhZ

Reset

AN5

AN4

AN3

AN2

AN1

AN0

AGND

Aref

AVcc

D13

D12

D11

D10

D9D8

D6

RESET

FTDI

1

(rx)D0(tx)D1

D2

D3

D4

D7

D5

330

A K

1PC6

17PB3

18PB4

19PB5

GND

RESET

5V

Recommended ICSP pinout

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ver 1 rev 2

100nF

100nF

FTDI Connector

GN

D

CT

S

Vc

c

RX

TX

RT

S

A K

I G OA K

Simple 5V Power Supply

330

1N4007

+

220F50V

+

47F16V

100nF

100nF

7805

OUT 5VDCIN 12 24V

Protect a I/O Pin

Digital Pin In/Out220

K A

5.1

Zener 5.1V


17/39

Connect a SD Card

NC

VCC

GND

Aout

Ain

Bout

Bin

Cout

Cin

Dou

t

Din

Eou

t

Ein

Fou

t

Fin

NC

MC14050B

D10 SSD11 MOSI

D13 SCK

D12 MISO

3.3V

GND 3

DIn 2

5 Clock

6 GND

7 DOut

8 Reserved

4

VCC

ChipSel 1

Reserved 9

SD Card Pinout

NCVCC

GND

Aout

Ain

Bout

Bin

Cout

Cin Dout

Din

Eout

Ein

Fout

Fin

NC

MC14050B

+

100F16V

+

10F16V

100nF

LM317

DCIN 5V

OUT 3.3V

Vi

Vo

Adj

330

470

75

Simple 3.3V Power Supply

LM317 (TO-92)

Only for 5V Arduino

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18/39

Connect a Temperature Sensor (LM35)

A K

1N4148 x 2

LM35GND

Out

VCC

5V

A018K

A1

LM35 (TO-92)

GNDVCC

Out

Connect to Composite Video

1K

470

9

7

Sync

Video

Connect to VGA

Front

Rear

470

470

470

1

10

VSync

3HSync

1

6

11

68

68

VCCX1

X2

Vbat

GND

SQW

SCL

SDADS1307

VCCX1

X2

Vbat

GND

SQW

SCL

SDADS1307

Connect a RTC (DS1307)

SCL

SDA

32768Khz10K

5V

3VBattery

No 3V Battery?Connect Vbatto ground.

18ARDUINOTHE

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ver 1 rev 0


19/39

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1 2 3 4 5 6 7

Connect a Keypad

ININ

ININ

ININ

IN

1N4148 x 4

K A

1 2 3 4 5 6 7

Connect a Keypad (with Interrupt)

ININ

ININ

ININ

IN

2

1 + 2

2 + 5

3 + 7

1 + 7

5 + 7

3 + 6

1 + 6

5 + 6

3 + 4

1 + 4

2 + 3

4 + 5

3 1 5

2

7

6

4


20/39

TSOP1736SFH506

TFMS5360 SFH505A PIC12043SIS1U60TSOP1836

NJL61H380TSOP4836SFH5110

Connect a IR Sensor

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IRGND

S

VCC

5V

+

4.7

F

100

12K

IN

Reccomended

to suppresspower supplydisturbances

Connect a IR Emitter

A K

EC

B

C

B

E

2N2222TSAL6200

OUT1K

100nF

NPN 5V

K A

39

R=IF

Vin VF-1000*

VF

Vin

IF

Forward Voltage Led

Forward Current Led

Source Voltage


21/39


22/39

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MIDI Interface

5Current Source

Current Sink 4

Current Sink

Current Source

1 NC3NC

2GND

MIDI OUT

MIDI IN

NC GND

6N137

NC

A

K

Vcc

VE

VO

1N4148

K A

100nF

NC GND

NC

A

K

Vcc

VE

VO6N137

220

MIDI IN MIDI OUT

5.6K

+5V

220

1.2K

TX(pin 1)

RX(pin 0)

+5V

Multiple Buttons using 1 Analog Input

1K

1K

1K

1K

1K

1M

IN

AnalogInput

22


23/39

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23Connect a Digital Temperature Sensor (DS18B20) A simple Rain Sensor with Arduino

DS18B20

VDD

DQ

GND

MAXIM18B20

IN

+5V

4.7

K

100nF

DS18B20GND

DQ

VDD

~ Max 40mt (130 ft)

on CAT5 cable

+5V

C

B

E

BC517

10K

47K

1M

AC input

A

E

CRx

IN IN

Vin

LOW

47K

5V4N25

4N25

A

K

NC

B

C

E

+

10F16V

A K

1N4007

470

VoltinResistor Value

470

1K

2.2K


24/39

2


25/39

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25Connect a EEPROM via I2C

Write operations Enabled

Write operations Disabled

0x510x52

0x53

0x54

0x55

0x56

0x50

0x57

Address

Vss SDA

24XXXX

A0

A1

A2

Vcc

WP

SCL

24

XXXX

Vss SDA

A0

A1

A2

Vcc

WP

SCL

24XXXX

100nF

2.2

K

+5V

SCL

SDA

xx24x02x

xx24x512x

xx24x01x

xx24x04x

xx24x08x

xx24x16x

xx24x32x

xx24x64x

xx24x128x

xx24x256x

1Kb

2Kb

32Kb

64Kb

4Kb

8Kb

16Kb

128Kb

256Kb

512Kb

26


26/39

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26

+3.3V

ACK

AttentionGND

MISOMOSI

Vib.Motor

NCClock

3.3V

Connect a PS2 Dualshockcontroller

13

11

10

A Simple programmer

100nF

Rear

K A5.1

Zener 5.1V

1N4148

K A

10K

33K

4.7K

4.7K

BC547

E

B

C

10K

ICSP

MOSI

5V

GND

MISO

SCK

RESET


27/39

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Port Expander (PCF8574xx)

Absolute max 150mAfor entire package

Absolutemax per pin 25mA

0x21

0x22

0x23

0x24

0x25

0x26

0x20

0x27

0x39

0x3A

0x3B

0x3C

0x3D

0x3E

0x38

0x3F

PCF8574 PCF8574A

Address

PCF8574xx informs the microprocessor

that there is incoming data or a change

of data on its ports without having to

communicate via the I2C communication bus.VDDA0

VSS

A1

A2

P0

P1

P2

P3 P5

P4

P7

P6

SDA

SCL

INT

PCF8574xx

In applications requiring additional

drive, two port pins may be connected

together to sink up to 50-mA current.

VDDA0

VSS

A1

A2

P0

P1

P2

P3 P5

P4

P7

P6

SDA

SCL

INT

PCF8574

VDDA0

VSS

A1

A2

P0

P1

P2

P3 P5

P4

P7

P6

SDA

SCL

INT

PCF8574

20 21

VDDA0

VSS

A1

A2

P0

P1

P2

P3 P5

P4

P7

P6

SDA

SCL

INT

PCF8574

22

+5V

SCL

SDA

How to connect multipe devices

A typical Application

100nF

+5V

SCL

SDA

2

2.2K

330

330

2.2

K

VDDA0

VSS

A1

A2

P0

P1

P2

P3 P5

P4

P7

P6

SDA

SCL

INT

PCF8574

A K

NPN

E

B

C

BC337

E

B

C

Buzzer

1N4148

K A


28/39

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3 1

4

5

6

7

2

8 (Serial Clear)Will empty the whole

Shift Register if pulled LOW.

Must be pulled HIGH to enable.

(Output Enable)This pin enables

the output when tied to GND

& disabled when HIGH.

(RCLK)Needs to be pulled HIGH toset the output to the new shiftregister values. This must be pulledhigh directly after SRCLK has goneLOW again.(SRLCK)When this pin is pulled highit will shift the register.

(Serial Clear)Will empty the whole

Shift Register if pulled LOW.

Must be pulled HIGH to enable.

(Ser) Input for the next pin that

gets shifted in.

The pin (QH) contains the overflow

that is shifted out the other end

VCCQB

GND

QC

QD

QE

QF

QG

QH SRCLR

QH

RCLK

SRCLK

QA

SER

OE

7

4HC595

Absolutemax per pin 20mA

Shift Register (74HC595)

VCCQB

GND

QC

QD

QE

QF

QG

QH SRCLR

QH

RCLK

SRCLK

QA

SER

OE

74HC595

How to connect multipe devices

VCCQB

GND

QC

QD

QE

QF

QG

QH SRCLR

QH

RCLK

SRCLK

QA

SER

OE

74HC595

VCCQB

GND

QC

QD

QE

QF

QG

QH SRCLR

QH

RCLK

SRCLK

QA

SER

OE

74HC595

+5V

9

10

8

A typical Application

+5V

9

10

8

330

VCC

QB

GND

QC

QD

QE

QF

QG

QH

SRCLR

QH

RCLK

SRCLK

QA

SER

OE

74HC595

A K

100nF

2


29/39

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Connect a Distance Sensor (Sharp GP2Y0A21)

Vout Vin

GND

AnalogInput

SHARP

+10F16V

100nF

10 5V

IN

Connect a DAC (MCP4921)

Connect a Digital Potentiometer (MCP4161)

VDDCS

SCK

SDI

VSS

P0B

P0W

P0AMCP416

1

B

W

A

VDDCS

SCK

SDI

VSS

P0B

P0W

P0AMCP4161

100nF

5V

100K

SCK 13

MOSI 11

10

VOut

100nF

5V

100K

SCK 13

MOSI 11

10

VOUT

CS

SCK

SDI

VSS

VREF

LDACMCP4921

VDD

VOUT

CS

SCK

SDI

VSS

VREF

LDACMCP4921

VDD

10K

MCP1541100

+

10F 16V

MCP1541

VIN

VOUT

VSS

MICROCHIP

MCP1541

30THE


30/39

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RS485 Node

DMX Controller (Basic)

VCCR

RE

DE

D

B

A

GNDSN75176

VCCR

RE

DE

D

B

A

GNDSN75176

100nF

5V

100K

B

A

J1

J2

4.7K

4.7

K

56

J3

120

RX/TX

RX

TX

First LastMiddle

J1 on

J2 on

J3 on

J1 off

J2 off

J3 off

J1 off

J2 off

J3 on

Node termination jumpers config

Node Node Node Node

2 INV -

1 Ref5Opt

4Opt

2

+

VCCR

RE

DE

D

B

A

GNDSN75176

100nF

5V

100

OUT1

2

3

ITHE


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0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

x1

x10

x100

x1,000

x10,000

x100,000

x1,000,000

10%

5%

TOLERANCE

K=x1,000

M=x1,000,000

MULTIPLIER

BLACK

BROWN

RED

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GRAY

WHITE

IARDUINOTHE

UNOFFICIAL

basic connections

03 APR 2013

www.pighixxx.com

BY ND

ver 1 rev 0


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31THE


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ENABLEB

INPUT3

LOGICSUPPLYV

OLTAGEV

SS

GND

INPUT2

ENABLEA

INP

UT1

SUPPLYV

OLTA

GE

VS

OUTPUT2

OUTPUT1

CURRENTSENSIN

GA

CURRENTSENSIN

GB

OUTP

UT4

OUTPUT3

INPUT4

L298N

Drive a Motor (L298)

100nF

BA

A K

1N4007

A K

1N4007

+

100F 50V

+

100F 50V

OUT

OUT

OUT

OUT

100nF

5VVIN

32

THE


35/39

VCC1A

GND

1Y

2A

2Y

3A

3Y

4Y

5Y

4A

6A

6Y

5A

SN7414

SN7474

VCCCLR

GND

D

CK

PR

Q

Q

Q

PR

Q

CLR

D

CK

PR

CLR

Q

DCK

Q

PR

CLR

Q

D CK

Q

1

2

32ARDUINOTHE

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BY ND

Debouncing a Rotary Encoder

VCC1A

GND

1Y

2A

2Y

3A

3Y

4Y

5Y

4A

6A

6Y

5A

SN7414

VCCCLR

GND

D

CK

PR

Q

Q

Q

PR

Q

CLR

D

CK

SN7474

100nF

100nF

5V

INDir

INStep

B

A

C

+

+

1F

CA

B

220

220

3K

3K

Simple Debouncer

VCC1A

GND

1Y

2A

2Y

3A

3Y

4Y

5Y

4A

6A

6Y

5A

SN7414

5V

10K4.7

K

100nF

100nF

Debouncing a Pushbutton

IN

6 portsavailable

5V

IN

100nF

10K

470

1N4148

K A

33THE


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BY ND

Drive a Stepper (L293)

VCC11/2en

VCC2

IN1

OUT1

GND

GND

OUT2

IN2 IN3

3/4en

GND

OUT3

IN4

OUT4

GND

L293D

+

100F50V

100nF

5V

VCC11/2en

VCC2

IN1

OUT1

GND

GND

OUT2

IN2 IN3

3/4en

GND

OUT3

IN4

OUT4

GND

L293D

100nF

100F50V

OUT

OU

T

OUT

OU

T

OUT

OU

T

VIN

J1

J2

+

34THE


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Arduino Logic Analyzer

220

220

220

220

220

220

D2

D3

D4

D5

D6

D7

K A

5.1

Zener 5.1V

See instructionsat

la.pighixxx.com

LAB edition

LM358

VCC1OUT

1IN-

1IN+

GND

2OUT

2IN-

2IN+

Current Sense

VCC1OUT

1IN-

1IN+

GND

2OUT

2IN-

2IN+

LM3

58

5V

100nF

1

1K

5.6K

IN

AnalogInput

35THE


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LAB edition

Arduino Component Tester (basic)

470K

680

470K

680

470K

680

A0

A1

A2

D8

D11

D10

D13

D9

D12

Download sketchat

at.pighixxx.com

To get fullaccuracy

use 1% toleranceresistors

Allways be shure to

discharge capacitors

before connecting

them to the Tester!

Original Project by Markus Frejek AVR-Transistortester, Embedded Projects Journal, 11. Ausgabe, 2011

Arduino version by PighiXXX

THE

IVSimple Transistor Comparison Table


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ARDUINO

THEUNOFFICIAL

basic connections

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IVSimple Transistor Comparison Table

BC55830V - 100mA

420@2mA

cbe

BC32825V - 800mA

100@100mA

cbe

BC55745V - 100mA

180@2mA

cbe

BC32745V - 800mA

100@100mA

cbe

BC64080V - 1A

63@150mA

ecb

BC54745V - 100mA

420@2mA

cbe

BC33745V - 800mA

100@100mA

cbe

2N222240V - 600mA

[email protected]

cbe

BC55645V - 100mA

420@2mA

cbe

BC54645V - 100mA

420@2mA

cbe

BC54830V - 100mA

200@2mA

cbe

BC33845V - 800mA

100@100mA

cbe

BC63980V - 1A

40@150mA

ecb

BC54930V - 100mA

200@2mA

cbe

BC55930V - 100mA

200@2mA

cbe

BCxxxxxV -xxxmA

xxx@xxxmA

cbe

TRANSISTOR Name

Pinout

MAX Collector

Current

hFEAmplification

MAX working

Voltage

PNP

NPN

100m

A

500m

A

800m

A

1A

Arduino Basic Connections

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