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ILLUSTRATED ASSEMBLY MANUAL HKA04IP’1

KA04

Ethernet shield for Arduino®

Features• ForusewithArduinoUno™,ArduinoMega™• BasedonMicrochipENC28J60• IEEE802.3compatibleEthernetcontroller• IntegratedMAC&10BASE-TPHY• SPIinterface• WithRJ45connector

Specifications• Max.clockspeed:20MHz• Transmit/receivebuffer:8kB• Dimensions:68x53mm/2.67x2.08”

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Velleman N.V.Legen Heirweg 33

9890 Gavere(België)

- 5 -

assembly hints

1. Assembly (Skipping this can lead to troubles ! )Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully.

1.1 Make sure you have the right tools:• A good quality soldering iron (25-40W) with a small tip.• Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and

will protect the tip, and enables you to make good connections. When solder rolls off the tip, it needs cleaning.• Thinraisin-coresolder.Donotuseanyfluxorgrease.• Adiagonalcuttertotrimexcesswires.Toavoidinjurywhencuttingexcessleads,holdtheleadsotheycannot flytowardstheeyes.

• Needle nose pliers, for bending leads, or to hold components in place.• SmallbladeandPhillipsscrewdrivers.Abasicrangeisfine.

) For some projects, a basic multi-meter is required, or might be handy

1.2 Assembly Hints :• Makesuretheskilllevelmatchesyourexperience,toavoiddisappointments.• Follow the instructions carefully. Read and understand the entire step before you perform each operation. • Perform the assembly in the correct order as stated in this manual• Position all parts on the PCB (Printed Circuit Board) as shown on the drawings. • Values on the circuit diagram are subject to changes, the values in this assembly guide are correct*• Usethecheck-boxestomarkyourprogress.• Please read the included information on safety and customer service

*Typographicalinaccuraciesexcluded.Alwayslookforpossiblelastminutemanualupdates,indicatedas‘NOTE’onaseparateleaflet.

1.3 Soldering Hints :

1. Mount the component against the PCB surface and carefully solder the leads

2. Make sure the solder joints are cone-shaped and shiny

3. Trimexcessleadsascloseaspossibletothesolderjoint

0.000

- 4 -

- 5 -

DO NOT BLINDLY FOLLOW THE ORDER OF THE COMPONENTS ONTO THE TAPE. ALWAYS CHECK THEIR

VALUE ON THE PARTS LIST!

1. Assembly (Skipping this can lead to troubles ! )Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully.

1.1 Make sure you have the right tools:• A good quality soldering iron (25-40W) with a small tip.• Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and

will protect the tip, and enables you to make good connections. When solder rolls off the tip, it needs cleaning.• Thinraisin-coresolder.Donotuseanyfluxorgrease.• Adiagonalcuttertotrimexcesswires.Toavoidinjurywhencuttingexcessleads,holdtheleadsotheycannot flytowardstheeyes.

• Needle nose pliers, for bending leads, or to hold components in place.• SmallbladeandPhillipsscrewdrivers.Abasicrangeisfine.

) For some projects, a basic multi-meter is required, or might be handy

1.2 Assembly Hints :• Makesuretheskilllevelmatchesyourexperience,toavoiddisappointments.• Follow the instructions carefully. Read and understand the entire step before you perform each operation. • Perform the assembly in the correct order as stated in this manual• Position all parts on the PCB (Printed Circuit Board) as shown on the drawings. • Values on the circuit diagram are subject to changes, the values in this assembly guide are correct*• Usethecheck-boxestomarkyourprogress.• Please read the included information on safety and customer service

*Typographicalinaccuraciesexcluded.Alwayslookforpossiblelastminutemanualupdates,indicatedas‘NOTE’onaseparateleaflet.

1.3 Soldering Hints :

1. Mount the component against the PCB surface and carefully solder the leads

2. Make sure the solder joints are cone-shaped and shiny

3. Trimexcessleadsascloseaspossibletothesolderjoint

- 4 -

- 6 - - 7 -

Construction

� R1: 47 (4 - 7 - 0 - B) � R2: 47 (4 - 7 - 0 - B) � R3: 18 (1 - 8 - 0 - B) � R4: 47 (4 - 7 - 0 - B) � R5: 47 (4 - 7 - 0 - B) � R6: 270 (2 - 7 - 1 - B) � R7: 270 (2 - 7 - 1 - B) � R8: 2K7 (2 - 7 - 2 - B) � R9: 10K (1 - 0 - 3 - B) � R10: 10K (1 - 0 - 3 - B) � R11: 10K (1 - 0 - 3 - B)

R...

Resistors 1CONSTRUCTIONI

Ceramic capacitors2c...

c...

� X1 : 25MHz

8

Crystal3

� C1: 100nF (104) � C2: 100nF (104) � C3: 100nF (104) � C4: 100nF (104) � C10: 100nF (104)

C...

R...

� C7: 15pF (15) � C8: 15pF (15)

� SW1 : Reset

Push button4

Voltage regulator5

M3 NUT

TRANSISTOR

M3 BOLT

PCB

� VR1 : LD1086V33

IC socket6 � IC1 : 28p

� IC1 : 14p

� 2 x 6p

Do not cut the connector pins!

Female header72

3

Solder

1

� SK6: 2 x 3p

Watch the position of the notch!

- 6 - - 7 -

Construction

Electrolytic capacitors8

Watch the polarity!

� C5 : 470µF � C6 : 10µF � C9 : 470µF

IC socket

Female header2

3

Solder

1

� SK6: 2 x 3p

2

3

Solder

1

LAN connector9

� SK5

IC10

Watch the position of the notch!

� IC1 : ENC28J60-I/SP

� IC2 : 74HC125

- 8 - - 9 -

123456

SK4

Vin

GND5V3V3RST

123456

SK3

A0A1A2A3A4A51

2345678

SK1

ARDUINO UNO

12345678

SK2

01234567

89

10111213

AREF-

-

GND

100nC3 470µ/16V

C5

Vin

I O

GN

D

LD1086-3.3VR1

GND

100nC4 470µ/16V

C9

V3.3

Vcap1

VSS2

CLKOUT3

INT4

WOL5

SO6

SI7

SCK8

CS9

RESET10

VSSrx11

TPIN-12

TPIN+13

RBIAS14 VDDtx 15

TPOUT- 16

TPOUT+ 17

VSStx 18

VDDrx 19

VDDpll 20

VSSpll 21

VSSosc 22

OSC1 23

OSC2 24

VDDosc 25

LEDB 26

LEDA 27

VDD 28ENC28J60IC1

TX+ 1

TXc 4

TX- 2

RX+ 3

RXc 5

RX- 6

LD+ GREEN 11LD- GREEN 12

LD+ YELLOW 9LD- YELLOW 10

SHIE

LD

8

RJ45LAN-VSK5

LEDA

LEDB

TPOUT+

TPOUT-

TPIN-

TPIN+

270

R6270

R7

LEDA

LEDB

GND TPIN-

TPIN+

TPOUT+

TPOUT-

47R1

47R2

18R3

47R4

47R5

100nC1

100nC2

V3.3

GND

TXc

TXc GND GND

GND

GND

10µ/100VC6

GND

2K7R8

GND

25MHzX1 15P

C8

15P

C7GND

5VOE11

A12

Y13

OE24

A25

Y26

GND7

VCC 14

OE4 13

A4 12

Y4 11

OE3 10

A3 9

Y3 8

74HC125

IC2

GND

GND

GND

GND

GND

SO

SO

MISO

MOSI

SCK

RESET

RESET

10KR9

5V

SW KRS0611SW1

GND

V3.3

V3.3

V3.3

V3.3

V3.3

100nC10

GND

10kR11

5V

GND

INT

INT

10

2

10K

R10V3.3

246

135

2X3PIN HEADER PITCH 2.54MM

SK6

MISOSCK MOSIRESET GND

Connection diagram

CONNECTION DIAGRAMII

DOWNLOAD SAMPLE CODE FROM KA04 PAGE ON WWW.VELLEMAN.BE

RESET2

RJ45 LAN CONNECTOR

1

ICSP CONNECTOR3

- 8 - - 9 -

123456

SK4

Vin

GND5V3V3RST

123456

SK3

A0A1A2A3A4A51

2345678

SK1

ARDUINO UNO

12345678

SK2

01234567

89

10111213

AREF-

-

GND

100nC3 470µ/16V

C5

Vin

I O

GN

D

LD1086-3.3VR1

GND

100nC4 470µ/16V

C9

V3.3

Vcap1

VSS2

CLKOUT3

INT4

WOL5

SO6

SI7

SCK8

CS9

RESET10

VSSrx11

TPIN-12

TPIN+13

RBIAS14 VDDtx 15

TPOUT- 16

TPOUT+ 17

VSStx 18

VDDrx 19

VDDpll 20

VSSpll 21

VSSosc 22

OSC1 23

OSC2 24

VDDosc 25

LEDB 26

LEDA 27

VDD 28ENC28J60IC1

TX+ 1

TXc 4

TX- 2

RX+ 3

RXc 5

RX- 6

LD+ GREEN 11LD- GREEN 12

LD+ YELLOW 9LD- YELLOW 10

SHIE

LD

8

RJ45LAN-VSK5

LEDA

LEDB

TPOUT+

TPOUT-

TPIN-

TPIN+

270

R6270

R7

LEDA

LEDB

GND TPIN-

TPIN+

TPOUT+

TPOUT-

47R1

47R2

18R3

47R4

47R5

100nC1

100nC2

V3.3

GND

TXc

TXc GND GND

GND

GND

10µ/100VC6

GND

2K7R8

GND

25MHzX1 15P

C8

15P

C7GND

5VOE11

A12

Y13

OE24

A25

Y26

GND7

VCC 14

OE4 13

A4 12

Y4 11

OE3 10

A3 9

Y3 8

74HC125

IC2

GND

GND

GND

GND

GND

SO

SO

MISO

MOSI

SCK

RESET

RESET

10KR9

5V

SW KRS0611SW1

GND

V3.3

V3.3

V3.3

V3.3

V3.3

100nC10

GND

10kR11

5V

GND

INT

INT

10

2

10K

R10V3.3

246

135

2X3PIN HEADER PITCH 2.54MM

SK6

MISOSCK MOSIRESET GND

Schematic diagram

CONNECTION DIAGRAM

- 10 -

PCB Leds and how to use them

- 10 -

Supply voltage (V) - led voltage (V)

required current (A)= series resistance (ohms)

required current (A)= series resistance (ohms)

Required resistor power handling= voltage over resistor x current passed trough resistor

9V - 1.7V

0.005A= 1460 ohm

9V - (3 x1.7V)

0.005A= 780 ohm

(9V - 1.7V) x 0.005A = 0.036W

closest value : use a 1k5 resistor

use an 820 ohm resistor

a standard 1/4W resistor will do the job

Supply voltage (V) - (number of leds x led voltage (V))

How to Calculate the series resistor:Example: operate a red led (1.7V) on a 9Vdc source. Required led current for full brightness: 5mA (this can be found in the datasheet of the led)

LEDs in series:

Example: 3 x red led (1.7V) on 9V battery Required led current for full brightness: 5mA (this can be found in the datasheet of the led)

Leds feature a specific voltage drop, depending on type and colour. Check the datasheet for exact voltage drop and rated current !

Never connect leds in parallel

Leds and how to use them

An open collector output can be compared to a switch which switches to ground when operated

Example: How to switch an LED by means of an open collector output

open collector outputs

The new Velleman Projects catalogue is now available. Download your copy here:

www.vellemanprojects.eu

Modifications and typographical errors reserved - © Velleman nv. HKA04’IP (Rev.1) Velleman NV, Legen Heirweg 33 - 9890 Gavere.