Velleman K8045 User manual

Modifications reserved
Features :
Add an LCD display to any low-tech application and make it look high-tech !
Replace up to 9 indicators or lamps by one single backlit LCD.
Recall messages simply by pressing a button.
Inputs accept dry contacts, open collectors and logic levels.
No programming skills required !
Store up to 9 sixteen-character messages in non-volatile EEPROM memory.
4 operating modes :
1) Display the status of all inputs simultaneously.
2) Display all active inputs.
3) Display active input with highest priority.
4) Display text messages in a ‘tickertape’-fashion.
A default message can be entered and is displayed when no inputs are active.
Messages can be transferred to the K8045 from any PC or terminal.
Free message transfer software and source code for the K8045 is available
from www.velleman.be
Wireless data transfer between PC/terminal and K8045 is possible with op-
tional RX/TX433 modules.
1 on-board pushbutton available for your application.
Total solder points: 239
Difficulty level:
beginner 12345advanced
8 Input programmable messageboard
with LCD & serial interface
ILLUSTRATED ASSEMBLY MANUAL H8045IP-1
K8045
Specifications :
Inputs : 8 inputs (24Vmax)
Display : 16 character 1 line supertwist backlit LCD
Communication : RS232 2400/N/8/1 no handshaking
Power supply : 9-12VDC/150mA adapter or
2x9VAC/150mA transformer
Dimensions : 124x73x30mm max.

2
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.
•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 compo-
nents 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 draw-
ings.
⇒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

3
Assembly hints
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 sol-
der joint
REMOVE THEM FROM THE TAPE ONE AT A TIME !
AXIAL COMPONENTS ARE TAPED IN
THE CORRECT MOUNTING SEQUENCE !

4
COLOR= 2… 5
COLOR= 2...5
Color code table
I P E SF S DK N D GB F NL
C
O
D
E
CODICE
COLORE CODIGO DE
CORES
CODIGO
DE COL-
ORES
VÄRI
KOODI FÄRG SCHEMA FARVE- KODE FARGE- KODE FARB KODE COLOUR CODE CODIFI- CATION
DES
COU-
LEURS
KLEUR
KODE C
O
D
E
0 Nero Preto Negro Musta Svart Sort Sort Schwarz Black Noir Zwart 0
1 Marrone Castanho Marrón Ruskea Brun Brun Brun Braun Brown Brun Bruin 1
2 Rosso Encar-
nado Rojo Punainen Röd Rød Rød Rot Red Rouge Rood 2
3 Aran-
ciato Laranja Naran- jado Oranssi Orange Orange Orange Orange Orange Orange Oranje 3
4 Giallo Amarelo Amarillo Keltainen Gul Gul Gul Gelb Yellow Jaune Geel 4
5 Verde Verde Verde Vihreä Grön Grøn Grønn Grün Green Vert Groen 5
6 Blu Azul Azul Sininen Blå Blå Blå Blau Blue Bleu Blauw 6
7 Viola Violeta Morado Purppura Lila Violet Violet Violet Purple Violet Paars 7
8 Grigio Cinzento Gris Harmaa Grå Grå Grå Grau Grey Gris Grijs 8
9 Bianco Branco Blanco Valkoinen Vit Hvid Hvidt Weiss White Blanc Wit 9
A Argento Prateado Plata Hopea Silver Sølv Sølv Silber Silver Argent Zilver A
B Oro Dourado Oro Kulta Guld Guld Guldl Gold Gold Or Goud B
5%
4K7= ( 4 - 7 - 2 - B )
1%
4K7= ( 4 - 7 - 0 - 1 - 1 )

5
Construction
J1
J2
J3
1. Jumperwire
D1 : 1N4007
D2 : 1N4007
D3 : 1N4148
D4 : 1N4148
D5 : 1N4148
D6 : 1N4148
D7 : 1N4148
D8 : 1N4148
D9 : 1N4148
D10 : 1N4148
2. Diodes (Check the polarity)
CATHODE
D...
C2 : 100nF (104)
C3 : 100nF (104)
C4 : 100nF (104)
C5 : 100nF (104)
C7 : 15pF (15)
C8 : 15pF (15)
5. Capacitors
C...
ZD1 : 5v1
3. Zenerdiodes (Check the polarity)
CATHODE
ZD...
R10 : 1K (1 - 0 - 2 - B)
R11 : 1K (1 - 0 - 2 - B)
R13 : 1K (1 - 0 - 2 - B)
R14 : 1K (1 - 0 - 2 - B)
R16 : 1K (1 - 0 - 2 - B)
R17 : 1K (1 - 0 - 2 - B)
R19 : 1K (1 - 0 - 2 - B)
R20 : 1K (1 - 0 - 2 - B)
R22 : 1K (1 - 0 - 2 - B)
R23 : 1K (1 - 0 - 2 - B)
R25 : 1K (1 - 0 - 2 - B)
R26 : 1K (1 - 0 - 2 - B)
R28 : 1K (1 - 0 - 2 - B)
R29 : 1K (1 - 0 - 2 - B)
R30 : 22E0 (2 - 2 - 0 - B)
R31 : 10K (1 - 0 - 3 - B)
R1 : 10K (1 - 0 - 3 - B)
R2 : 10K (1 - 0 - 3 - B)
R3 : 10K (1 - 0 - 3 - B)
R4 : 100K (1 - 0 - 4 - B)
R5 : 1K (1 - 0 - 2 - B)
R7 : 1K (1 - 0 - 2 - B)
R8 : 1K (1 - 0 - 2 - B)
4. Resistor
R...
IC1 : 28p
IC2 : 8p
6. IC socket
(Watch the position of the notch)
IC...
1

6
Construction
SW2
SW3
7. Push buttons
R6 : 1K (1 - 0 - 2 - B)
R9 : 1K (1 - 0 - 2 - B)
R12 : 1K (1 - 0 - 2 - B)
R15 : 1K (1 - 0 - 2 - B)
R18 : 1K (1 - 0 - 2 - B)
R21 : 1K (1 - 0 - 2 - B)
R24 : 1K (1 - 0 - 2 - B)
R27 : 1K (1 - 0 - 2 - B)
12. 1/4W Resistors
(check the color code)
R...
T1 : BC557
T2 : BC557
T3 : BC557
T4 : BC557
T5 : BC557
T6 : BC557
T7 : BC557
T8 : BC557
13. Transistors
SW1 : DIP-2
8. DIP switch
1
SW...
12
1
VR1 : UA7805
9. Voltage regulator
SK1 : 3p
SK8 : 12p
10. Connector
RV1 : 10K
11. Trim potentiometer
RV...
M3 NUT
M3 LOCK WASHER
VOLTAGE REGULATOR
PCB
M3 BOLT
VR...
I O

7
Construction
SK3 : 3p
14. Header
SK2
15. DC-jack
SK5 : SUB-D 9p female
16. SUB-D connector
C6 : 10µF
C1 : 220µF/35V
17. Electrolytic capacitors
C...
X1 : 4MHZ
18. Quartz chrystal
X...
IC1 : VK8045 (PIC16C57)
IC2 : 24C02A
19. IC’s
RS232 cable operation
Wireless link
20. Shunt selection
RF
CABLE
1
1
1
1

8
LCD assembling
Cut the 20 pole connector to a 16 pole connector.
Mount the 16 pole female connector. (see fig. 2.0)
Mount 2x 6 pole male connectors.
Pay attention : The four center connections of the LCD remain unused.
Make sure that the longest pins aim towards the main PCB. (See Fig. 3.0)
21. LCD assembling
FIG.3.0
FIG.2.0
FIG.1.0
Diagonal cutter

9
Assembly
Fit the display at the component side of the base PCB using four M2,5 bolts to-
gether with four 15mm spacers. Fix the display using four M2,5 bolts at the sol-
der side of the base PCB and check that the display is at right angles to the
base PCB.
Now you can solder the pinheader.
22. Assembly
Diagonal cutter

10
1. Hook-up when using an adapter :
2. Hook-up when using a transformer
Connection
23. Connection
LN
TRANSFORMER
K8045
SW3
GND
8
7
6
5
4
3
2
1
VB
VA
GND
2 X 9VAC/150mA
120 - 220 VAC
Fuse : 250mA T
9 –12VDC / 150mA

11
How to construct an RS232 cable :
Or you can buy a pre-assembled cable. Careful : this is not a null-modem cable
How to establish a wireless link :
Wireless data transfer between the PC/terminal and the K8045 is possible by
means of optional RF transmitter/receiver modules (Velleman part# TX433/
RX433). Transmission quality depends on your environment. Other RF sources
might interfere with your signal (and will cause occasional ‘garbage’ on-screen).
The receiver is mounted on the left hand side of the K8045 board. Watch the
position, the coils point to the LCD of the K8045. If you choose wireless opera-
tion, make sure to set jumper SK3 to ‘RF’
24. Control options
SUBD 9 pole female SUBD 9 pole male
TO PC TO K8045
33
55
2-3 meter max.
35
9V Battery
+
-Z
A
R
TX433
Control options
To pc
SUBD 9 pole female
Z : 5V1 zenerdiode 0,6W
A : antenna (30 - 40cm)
R : 3K9 resistor (orange - white - red)

12
Turn RV1 (contrast) fully anti-clockwise.
Set dipswitches SW1 (mode) to the ‘off’-position.
Set jumper SK3 for ‘cable’-operation but do not connect a serial cable
Connect the supplied wired female connector to SK8
Apply power (for power requirements, see pag. 10)
The LCD should initialise and the following text should appear :
K8045 Vxxxxxxxx (‘x’ indicates software version)
If the message ‘EEPROM FAILURE’ appears, check the position of IC2 and/or
re-check the complete assembly
Next, the display will show : 1 2 3 4 5 6 7 8
Check input 1 by shorting the left hand brown and the black wire. An ‘x’ appears
next to the ‘1’ on the screen, indicating ‘input active’
Check all inputs (brown to grey) in a similar fashion.
Next, flip dipswitch 2 of SW1 to the ‘ON’ position.
The display should display ‘9’ (the ninth message is displayed when no inputs
are active). Repeat the input test as above, but now the display will show the
active input only
RS232 interface setup :
Hook-up a serial cable (for details, see pag. 11) between a free serial port of
your computer/terminal and the K8045. You can download free software from
our website www.velleman.be, which allows you to transfer messages from the
PC to your K8045 and which allows you to display messages on you K8045.
You can also use a terminal or terminal emulation program to manually enter
messages. Terminal settings are :
Baudrate : 2400
Parity : none
Databits : 8
Stopbits : 1
No handshaking
25. Testing
Testing

13
The K8045 can store 9 sixteen-character messages, 1 for each input and a 9th
which is displayed when no inputs are active.
Briefly press SW2 ‘PROG’ to enter program mode
The display shows ‘INPUT 1...9 / S / Q : ‘ and a flashing cursor
To enter a message for input 1 :
Type ‘1’ ‘ENTER’
The unit now displays ‘TRIGGER (1/0):’ and a flashing cursor
If you want the message to appear when the input is active (grounded),
type ‘0’ ‘ENTER’
In case you want the message to appear when the input is not active (left open),
Type ‘1’ ‘ENTER’
(If you do not want to change the settings for this input, press ‘BACKSPACE’ to
return to the previous menu)
The display now show the current message for this input.
If you do not wish to change the message for this input, press ‘BACKSPACE’ to
return to the input selection menu
If you wish to change the current message, simply type a new message and
press ‘ENTER’
Your message is now stored and the unit returns to the input selection menu
You can now enter messages for all inputs (1..9).
Message 9 is displayed when no input is active and does not allow you to enter
a trigger setting.
To exit programming mode, type ‘Q’ (capital).
(Note : You can download software from our
website www.velleman.be which makes it very
easy to store, edit and transfer messages, with-
out the need for a terminal program)
26. Entering messages with a terminal program :
Message entering

14
The K8045 features 4 operating modes, selectable with dipswitch SW1.
To ensure correct operation, disconnect power beforechanging dipswitch position.
(Program mode can be selected at all times, no need to disconnect power)
1) Display the status of all inputs simultaneously
2) Display all active inputs
3) Displayactive input with highestpriority
4) Displaytext messages in a ‘tickertape’-fashion
1) Display the status of all inputs simultaneously :
All inputs are displayed. An ‘x’ appears on theright handside of an active(grounded) input.
2) Display all active inputs :
For everyactive input, a corresponding message is displayed. There is a delaybetween
each message, to allow the user to read the message. Message 9 is displayed when no
inputs are active.
3) Display active input with highest priority :
Message 1 has highest priority, message 8 has lowest priority.
Only one message will be displayed. Message 9 is displayed when no inputs are active.
4) Display text messages in a ‘tickertape’-fashion :
This mode allows you to send messages to the K8045 from a remote location by either
RS232 cable or optional wireless link (see page 11) and displaythem on-screen. If the
message exceeds 16 characters, the message scrolls to the left.
An ID# can be assigned to the K8045 rangingfrom 0 to9 (default: 0). This allows you to
determine which K8045 will receiveand display the message, which is handyfor wireless
link applications. In this way, up to tenK8045units can be individuallyaddressed.
You can download a small program from our
website www.velleman.be which allows you to
set the ID # and send messages in a simple
fashion to your K8045. The source code is sup-
plied,for users who would like to modifythe code
for their proper applications.
27. Operating modes :
Operating modes
MODE 12
1 OFF OFF
2 OFF ON
3 ON OFF
4 ON ON
DIPSWITCH SW1

15
Options :
RF wireless link : ......................................................................... RX433/TX433
HQ supertwist LCD display :.........................................................LCD1601ASL
Application examples :
1. Home alarm system : let your alarm system tell you what sensor has
been triggered
2. Replace car indicator lamps
Options & examples
28. Options & examples

16
3. Application with K8023 “Two wire 10-channel remote control”
12 ... 15Vin
+ VTX
1
2
3
4
10
+ Vext
9
8
7
6
5
GND
GND
VA
VB
1
2
3
4
5
6
7
8
GND
GND
-
COM
+ VTX
1
2
3
4
5
6
7
8
9
10
12V / 300mA
K8045 P8023S
P8023R
K8023
- VTX
2 x 9 VAC / 150mA
Options & examples

17
PCB
&
DIAGRAMS

18
PCB
PCB

19
Diagrams
Diagram

VELLEMAN COMPONENTS NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
Info & support: www.velleman.be
Modifications and typographical errors reserved
© Velleman Components NV
H8045IP - 2002 - ED1