Velleman High-Q Velleman-kit K8023 User manual

10 Channel, 2-Wire REMOTE CONTROL
K8023
ILLUSTRATED ASSEMBLY MANUAL H8023IP-1
Total solder points: 247
Difficulty level: beginner 12345 advanced
Controlupto10devicesfroma
distanceusingonly2wires.

2
Features:
 Microprocessor controlled.
 Inputs can be push-buttons, switches or open collector outputs from another device.
 The receiver section provide 10 open collector outputs which allow you to control relays directly.
 Terminal block connectors for all input and output connections are included.
 All outputs are provided with LED indication.
 Can be used with our kits: K8000,K8006,K8046,K8050,…
 Can be connected to our standard relay card: K6714, K6714-16
Specifications:
 10 open collector outputs 50V/100mA
 Tested to a distance of up to 50m (55 yards) between control- and receiver section.
 Operating voltage: Single 12-15V AC or DC, 300mA.
 Dimensions control pcb (wxdxh): 70x50x16mm (2,7”x2”x0,6”).
 Dimensions receiver pcb (wxdxh): 103x50x24mm(4”x2”x1”).
Features & Specifications

3
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 keep it clean; then apply solder to the tip, togive it a wetlook. This is called ‘thinning’ and will
protect the tip, and enables you to 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. Alwayslook for possible last minute manual updates, indicated as ‘NOTE’ on a separateleaflet.
0.000

4
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 solder joint
REMOVE THEM FROM THE TAPE ONE AT A TIME !
AXIAL COMPONENTS ARE TAPED IN THE COR-
RECT MOUNTING SEQUENCE !
You will find the colour code for the resistances and the LEDs in the HALG
(general manual) and on our website: http://www.velleman.be/common/service.aspx

5
 R1 : 470 (4 - 7 - 1 - B)
 R2 : 470 (4 - 7 - 1 - B)
 R3 : 470 (4 - 7 - 1 - B)
 R4 : 470 (4 - 7 - 1 - B)
 R5 : 470 (4 - 7 - 1 - B)
 R6 : 470 (4 - 7 - 1 - B)
 R7 : 470 (4 - 7 - 1 - B)
 R8 : 470 (4 - 7 - 1 - B)
 R9 : 470 (4 - 7 - 1 - B)
 R10 : 470 (4 - 7 - 1 - B)
 R11 : 470 (4 - 7 - 1 - B)
 R12 : 56 (5 - 6 - 0 - B - 9)
 R13 : 10K (1 - 0 - 3 - B)
 R14 : 1K (1 - 0 - 2 - B)
 R15 : 22 (2 - 2 - 0 - B)
3. Resistors
R...
Construction
Assembly of the receiver PCB : P8023R
 D1 : 1N4007
 D2 : 1N4007
 D3 : 1N4007
 D4 : 1N4007
 D5 : 1N4007
 D6 : 1N4007
1. Diodes. Watch the polarity!
D...
CATHODE
 ZD1 : 5V1 / 500mW
2. Zenerdiode. Watch the
polarity!
ZD...
CATHODE
 IC1: 18p
 IC2: 16p
 IC3: 16p
4. IC sockets, Watch the
position of the notch!
 C1 : 15pF (15)
 C2 : 15pF (15)
 C3 : 330pF (331)
 C4 : 100nF (104)
 C5 : 100nF (104)
 C6 : 100nF (104)
5. Capacitors

6
Construction
 LD1
 LD2
 LD3
 LD4
 LD5
 LD6
 LD7
 LD8
 LD9
 LD10
 LD11
6. LEDs. Watch the polarity !
COLOR= 2...5
LD...
CATHODE
LD...
3mm RED
 T1 : BC547B
7. Transistor
 C7 : 10µF
 C8 : 100µF
8. Electrolytic capacitors.
Watch the polarity !
C...
 X1 : 4MHz
X...
9. Quartz crystal
 SK1 … SK8 : 2p
10. Screw connectors
 C9 :1000µF /25V
11. Electrolytic capacitor.
Watch the polarity !
C...
 VR1 : UA7810
12. Voltage regulator
VR...
 IC1: VK8023
 IC2: ULN2003
 IC3: ULN2003
VK8023=(ProgrammedPIC16C54C-04)
 Pay attention to the position
of the notch!
13. IC’s mounting
PIN 1
1

7
Assembly of the receiver PCB : P8023S
Construction
 D7 : 1N4007
1. Diode. Watch the polarity!
D...
CATHODE
 R16 : 1K (1 - 0 - 2 - B)
 R17 : 4K7 (4 - 7 - 2 - B)
 R18 : 10K (1 - 0 - 3 - B)
 R19 : 10K (1 - 0 - 3 - 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)
 R24 : 10K (1 - 0 - 3 - B)
2. Resistors
R...
 R25 : 10K (1 - 0 - 3 - B)
 R26 : 10K (1 - 0 - 3 - B)
 R27 : 10K (1 - 0 - 3 - B)
 R28 : 220 (2 - 2 - 1 - B - 9)
 IC4: 18p
3. IC socket, Watch the po-
sition of the notch!
 C10 : 15pF (15)
 C11 : 15pF (15)
 C12 : 100nF (104)
 C13 : 100nF (104)
4. Capacitors
 LD12 : 3mm RED
5. LED. Watch the polarity !
COLOR= 2...5
LD...
CATHODE
LD...
 T2 : BC547B
6. Transistor
 VR2 : UA78L05
7. Voltage regulator
VR...

8
 C14 : 10µF
8. Electrolytic capacitor.
Watch the polarity !
C...
 X2 : 4MHz
X...
9. Quartz crystal
 SK9 : 3p
 SK10 … SK14 : 2p
10. Screw connectors
Construction
 C15 : 470µF /25V
11. Electrolytic capacitor.
Watch the polarity !
C...
 IC4: VK8023
VK8023=(ProgrammedPIC16C54C-04)
 Pay attention to the position
of the notch!
12. IC mounting
PIN 1
1

9
Connect both PCB’s P8023S and P8023R according to fig.1.
Both push buttons and switches can be used to control the
inputs. Keep the distance between the switches or push
buttons and the circuit as short as possible. If the circuit is
used in a noisy environment (e.g. proximity of electric motors,
transformers, ….) or if the distance between the switches and
the circuit exceeds 1m (3"), a shielded cable must be used to
connect the switches. The shield must be connected to the
‘COM’ terminal.
 If the K8023 circuit is powered from
an AC source, then you will need an
external DC source to power the
relays, and the ‘+ Vext’ terminal must
be connected. (fig 1).
13. Hook - up & Testing
Hook-up & testing
P8023S
P8023R
+VTX- COM 1 2 3 4 5 6 7 8 9 10
S1 S2 S3 S4 S5 S6 S7 S8 S9 S10
RY1...............................................................RY10 +
-
Vext
12V/300mA
12..15Vin +VTX- 1 2 3 4 5 6 7 8 9 10 +Vext GND
FIG. 1.0

10
14. Operation
Operation
1.Control section (P8023S):
Both PCBs are connected to each other by means of two wires, VTX+ and VTX-. They supply power to the
control board and carry the data signal. This signal contains information regarding the status of the 10 inputs.
Filtering and regulating of the power supply is performed by VR2, together with C15, C12, C13 and C14,
which also suppress possible oscillation of the voltage regulator.
The micro controller continuously monitors the status of the inputs, and switches T2 according to a custom
developed serial protocol. This allows a current to flow in the VTX wires. LD12 also lights allowing you to
check the operation of the system.
2.Receiver section (P8023R):
The receiver end also contains a power supply section. Diodes D1 to D4 rectify the incoming power.
Voltage regulator VR1 and the surrounding capacitors make sure the control part receives a regulated 10V.
From this 10V, R12, ZD1 and C8 derive 5V DC to supply the microcontroller. The actual receiving part
consists of D6, D7, R14, R15 and T1. The current variations in the VTX-lines cause a
voltage drop over R15, which is filtered by C3 and amplified by T1, before it is fed to the micro controller.
Reception is indicated by LD11. The microcontroller analyses the serial signal, and puts the corresponding
outputs high or low.
Because the microcontroller cannot sink large currents, we added IC2 and IC3, which provide open collector
outputs.

11
15. Hook-up Examples
Hook-up examples
1. Connecting the K8023 to the K6714, relais card.
P8023R
12..15Vin +VTX- 1 2 3 4 5 6 7 8 9 10 +Vext GND
From P8023S
VB GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
P6714

12
Hook-up examples
2. Connecting the K8023 to the K6711, IR receiver.
P8023S
P6711
TO P8023R
VA GND VB GND1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 +V
+VTX-COM12345678910

13
Hook-up examples
3. Connecting the K8023 to the K8006, modular light system.
P8006
P8023R
12V/300mA
12..15Vin +VTX- 1 2 3 4 5 6 7 8 9 10 +Vext GND
Base unit for home
modular light system
C 1 2 3 4 5
From P8023S
TO SECOND K8006

14
Hook-up examples
4. Connecting the K8023 to the K8000, computer interface card.
P8023R
12..15Vin +VTX- 1 2 3 4 5 6 7 8 9 10 +Vext GND
From P8023S
P8000
+IO/1- +IO/2- +IO/3- +IO/4- +IO/5- +IO/6- +IO/7-
Computer Interface Board
+12VDC
GND

15
16. Schematic diagram (Control section)
Schematic diagram
SK9
GND2
GND2
GND2
Vin
1
GND 2 Vout 3
VR2
UA78L05
GND2 GND2
RA0
17
RA1
18
RA2
1
RA3
2
RB0
6
RB1 7
RB2 8
RB3 9
RB4 10
RB5 11
RB6 12
RB7 13
VSS 5
MCLR/VPP
4
OSC1/CLKIN
16
T0CKI
3
OSC2/CLKOUT
15
VDD
14
IC4
VK8023 (PIC16C54)
GND2
GND2 GND2
GND2
GND2 GND2
R28
220/0.6W R16 1K
R17
4K7
R18
10K
R19
10K
R20
10K
R21
10K
R22
10K
R23
10K
R24
10K
R25
10K
R26
10K
R27
10K
C13
100n C14
10µ
C11
15p
C10
15p
C12
100n
C15
470µ/25-35V
T2
BC547
X2
4MHz
D7
1N4007
+
LD12
LED3RL
SK14SK13SK12SK11SK10
12345678910
-
COM
VTX

16
17. Schematic diagram (Receiver section)
Schematic diagram
GND
Vin
1
GND 2
Vout 3
VR1
UA7810
GND GND GND GNDGND GND
IN 1
1
IN 2
2
IN 3
3
IN 4
4
IN 5
5
IN 6
6
IN 7
7
COMMON
8CLAMP 9
OUT 7 10
OUT 6 11
OUT 5 12
OUT 4 13
OUT 3 14
OUT 2 15
OUT 1 16
IC2
ULN2003
IN 1
1
IN 2
2
IN 3
3
IN 4
4
IN 5
5
IN 6
6
IN 7
7
COMMON
8CLAMP 9
OUT 7 10
OUT 6 11
OUT 5 12
OUT 4 13
OUT 3 14
OUT 2 15
OUT 1 16
IC3
ULN2003
RA0
17
RA1
18
RA2
1
RA3
2
RB0
6
RB1 7
RB2 8
RB3 9
RB4 10
RB5 11
RB6 12
RB7 13
VSS 5
MCLR/VPP
4
OSC1/CLKIN
16
T0CKI
3OSC2/CLKOUT 15
VDD
14
IC1
VK8023 (PIC16C54) GND
GND
GNDGND
GND
GNDGNDGND
X1
4Mhz
GND
GND
GND
SK1
SK3
SK4
SK5
SK6
SK7
SK8
GND
1
2
3
4
5
6
7
8
9
10
+Vext
GND
SK2 +
-
D1
1N4007 D3
1N4007
D2
1N4007
D4
1N4007
D6
1N4007
D5
1N4007
ZD1
5V1
C9
1000µ/25V
C4
100n C5
100n C7
10µ
GND
C8
100µ
C3
330p
C1
15p
C2
15p C6
100n
T1
BC547
LD11
LED3RL
LD1
LED3RL
LD2 LD3 LD4 LD5 LD6 LD7 LD8 LD9 LD10
R12
56/0.6W
R11
470
R13
10K
R15
22
R14
1K
R1
470 R2 470 R3 470 R4 470 R5 470 R6 470 R7 470 R8 470 R9 470 R10
470
VTX
12...15Vin

17
R19
R21
SK11
COM+VTX-
SK9
D7
C15
321
SK10
R20
R22
SK13
6547
SK12
IC4
9810
SK14
R23
R24
R18
C13
T2
R28
VR2
C12
LD12
R26
C14
R27
R16
X2
P8023S'1
VELLEMAN
R17
R25
C10
C11
PCB
18. Control PCB

18
PCB
19. Receiver PCB
D5
IC1
T1 C3
R13
ZD1
C7
C5
D4
C9
LD11
C8
D3
C2
VR1C4
D2
SK2SK1
R11
D1
R12
12..15Vin +VTX- SK7
R7
VELLEMAN P8023R'1
R14
R1
LD1
X1
C6
C1
432 65
R4 R2 R3
IC2
R5 R6
5
SK3 SK4
R15 D6
1 2 34 SK6SK56789
987 10
R8 R9
IC3
R10
SK8
+Vext10 GND

Modifications and typographical errors reserved
© Velleman Components nv.
H8023IP - 2004 - ED1
VELLEMAN Components NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com
5410329 290818