Velleman-Kit K8055 User manual

USB Experiment interface board

K8055

ILLUSTRATED ASSEMBLY MANUAL H8055IP-1

Total solder points: 159

Difficulty level: beginner 12345 advanced

Interfaceyourcomputerwiththe

worldusing5digitalin–and8

outputs,2analoguein-andoutputs.

Features:

 5 Digital inputs (0= ground, 1= open). On board test buttons provided.

 2 Analog inputs with attenuation and amplification option. Internal test +5V provided.

 8 Digital open collector output switches (max 50V/100mA). On board LED indication.

 2 Analog outputs

 0 to 5V, output resistance 1K5.

 PWM 0 to 100% open collector outputs max 100mA / 40V

 On board LED indication.

 General conversion time: 20mS per command

 Power supply through USB approx. 70mA.

 Diagnostic software and communication DLL included

Features

FR Vous trouverez la traduction de cette notice sur le CD, avec d'autres informations

NL Vertaling van deze handleiding, als ook meer gegevens kan men terugvinden op de CD.

UK The translation of this manual and all other information can be found on the CD.

D Dieübersetzung dieser anleitung und alle anderen Informationen finden Sie auf der CD.

SSvensk Bruksanvisning och annan information finns på medföljande CD.

SF Tämän käyttöohjeen sekä muun informaation suomenkielinen käännös on oheisella CD:llä.

ILa traduzione di questo manuale e tutte le informazioni concernenti l'unità possono essere trovate sul CD.

DK Oversættelsen af denne manual, samt alle øvrige informationer vedrørende enhederne, kan findes på CD'en.

SP La traducción de este manual de instrucciones y toda otra información sobre los dispositivos se encuentran en el CD

PA tradução deste Manual e toda a informação referente às unidades pode ser encontrada no CD

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 oftenon a wet sponge or cloth, to keepit clean; then apply solder to the tip, togive it a wet look. This is called ‘thinning’ and will

protect the tip,and enables youto make goodconnections. When solder rolls off the tip,it needs cleaning.

• Thin raisin-core solder. Do not use any flux or grease.

• A diagonal cutter to trim excess wires. To avoid injury when cutting excess leads, hold the lead so they

cannot fly towards the eyes.

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

• Small blade and Phillips screwdrivers. A basic range is fine.

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

1.2 Assembly Hints :

⇒ Make sure the skill level matches your experience, to avoid disappointments.

⇒ 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.

⇒ Values in this assembly guide are correct*

⇒ Use the check-boxes to mark your progress.

⇒ Please read the included information on safety and customer service

* Typographical inaccuracies excluded. Always look for possible last minute manual updates, indicated as ‘NOTE’ on a separate leaflet.

0.000

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- Trim excess leads as close as possible to the solder joint

REMOVE THEM FROM THE TAPE ONE AT A TIME !

AXIAL COMPONENTS ARE TAPED IN THE COR-

RECT MOUNTING SEQUENCE !

Assembly hints

 R1 : 10K (1 - 0 - 3 - B)

 R2 : 10K (1 - 0 - 3 - B)

 R3 : 1K (1 - 0 - 2 - B)

 R4 : 1K (1 - 0 - 2 - B)

 R5 : 10K (1 - 0 - 3 - B)

 R6 : 100K (1 - 0 - 4 - B)

 R7 : 100K (1 - 0 - 4 - B)

 R10 : 10K (1 - 0 - 3 - B)

 R11 : 10K (1 - 0 - 3 - B)

 R12 : 100K (1 - 0 - 4 - B)

 R13 : 100K (1 - 0 - 4 - B)

 R14 : 1K5 (1 - 5 - 2 - B)

 R15 : 1K5 (1 - 5 - 2 - B)

 R16 : 1K5 (1 - 5 - 2 - B)

 R17 : 1K5 (1 - 5 - 2 - B)

 R18 : 1K (1 - 0 - 2 - B)

 R19 : 1K (1 - 0 - 2 - B)

 R20 : 10K (1 - 0 - 3 - B)

 R21 : 10K (1 - 0 - 3 - B)

 R22 : 10K (1 - 0 - 3 - B)

 R23 : 10K (1 - 0 - 3 - B)

3. Resistors

R...

Construction

 D1 : 1N4148

 D2 : 1N4148

2. Diodes, check the polarity !

D...

CATHODE

 J (2x)

1. Jumper  R24 : 10K (1 - 0 - 3 - B)

 R25 : 10K (1 - 0 - 3 - B)

 R26 : 10K (1 - 0 - 3 - B)

 R27 : 1K (1 - 0 - 2 - B)

 R28 : 47K (4 - 7 - 3 - B)

 R29 : 47K (4 - 7 - 3 - B)

 R30 : 47K (4 - 7 - 3 - B)

 R31 : 47K (4 - 7 - 3 - B)

 R32 : 47K (4 - 7 - 3 - B)

 R33 : 47K (4 - 7 - 3 - B)

 R34 : 47K (4 - 7 - 3 - B)

 R35 : 1K5 (1 - 5 - 2 - B)

 R36 : 1K (1 - 0 - 2 - B)

 R37 : 1K (1 - 0 - 2 - B)

 R38 : 1K (1 - 0 - 2 - B)

 R39 : 1K (1 - 0 - 2 - B)

 R40 : 1K (1 - 0 - 2 - B)

 R41 : 1K (1 - 0 - 2 - B)

 R42 : 1K (1 - 0 - 2 - B)

 R43 : 1K (1 - 0 - 2 - B)

 Remark:

R8 & R9 are not mounted at this

time. 4 Resistors should be left

over!

Construction



IC1 : 14P



IC2 : 18P



IC3 : 28P



IC4 : 18P

5. IC sockets. Watch the posi-

tion of the notch!

 C1 : 100nF (104, 0.1, u1)

 C2 : 100nF (104, 0.1, u1)

 C3 : 100nF (104, 0.1, u1)

 C4 : 33pF (33)

 C5 : 33pF (33)

 C7 : 100nF (104, 0.1, u1)

4. Ceramic Capacitors

C...

 LD1

 LD2

 LD3

 LD4

 LD5

 LD6 3mm RED

 LD7

 LD8

 LD9

 LD10

 LD11

9. LED’s. Watch the polarity!

LD1

CATHODE

 C6 : 220nF/50V~

8. Capacitors.

C...

 SW1

 SW2

 SW3 KRS0610

 SW4

 SW5

6. Push buttons

SW...

 RV1 : 100K

 RV2 : 100K

7. Potentiometer

 SK2 : 2P

 SK3 : 2P

 SK5 : 2P

 SK6 : 2P

14. Header

Construction

 C8 : 4,7µF/50V

12. Electrolytic capacitor.

Watch the polarity !

C...

 T1 : BC337

 T2 : BC337

10. Transistors

 SK7: USBB90

11. USB connector

 X1 : 6MHz

13. Quartz crystal

X...

 SK1 : 3P

15. Screw connectors

 SK4 : 2 x 3P

 SK8 : 5 x 3P

 IC1 : TLV274IN

 IC2 : ULN2803

 IC3 : VK8055 (Programmed PIC16C745-IP)

 IC4 : ULN2803

16. IC’s. Watch the position of the notch!

PIN 1

Construction

The analogue inputs A1 and A2 have a standard range of 0 ~ +5Vdc.

To use them externally, remove the jumper caps on SK2 and SK3.

The internal 5V voltage source can only be used for testing purposes.

When the input voltage is too low you can amplify it x4 / x15.

A gain of x4 requires a resistance of 3K3 for R8 (input signal 1) and for R9 (input signal 2). A x15 gain requires a resis-

tance of 820ohm.

When the gain is set to e.g. x4, the max. input voltage falls inversely proportional to 1,25V.

If you want a different gain factor you can calculate it quite easily using the following formula :

Gain A1 = 1 + (R10/R8) Gain A2 = 1 + (R11/R9)

17. GAIN FACTOR

Gain factor

Table of contents

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