Total solder points: 117
Difficulty level: beginner 1 2 3 4 5 advanced
RGB Controller
K8088
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Specifications
256 intensity levels/ch.
voltage output : same as input voltage
current limit possible (on-board resistor needed)
LED PWM freq. : 82Hz
power supply : 10 - 15Vdc / 9A max.
dimensions : approx 80x70x23mm
ILLUSTRATED ASSEMBLY MANUAL H8088IP-1
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Features & Specific ations
Ideal for use with flexible LED light lights strips, ex. RGB Led. (ordernr. LDB1-HS3027AC)
Features:
suited for both incandescent bulbs and LEDs
up-down level adjust for each output
hard transition effects : runnning light, Strobo, Colour loops, etc...
smooth fade effects : colour change, flam e effect, random colours, slow off etc...
wide-range effect speed adjust
Hi power MOSFET outputs
memory for last selected effect & speed
easy up/down effect select
suited for comm on anode RGB strips
Specifications:
256 intensity levels/ch.
voltage output : same as input voltage
current limit possible (on-board resistor needed)
LED PWM freq. : 82Hz
power supply : 10 - 15Vdc / 9A max.
dimensions : approx 80x70x23mm
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Assembly hints
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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 a void injury when cutting excess l eads, ho ld 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
* Typograp hical inaccuracies e xcluded. A lways l ook for p ossible last minute manual updates, in dicated as ‘NOT E’ on a sep arate l eaflet.
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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 !
DO NOT BLINDLY FOLLOW THE ORDER OF THE
COMPONENTS ONTO THE TAPE. ALWAYS CHECK
THEIR VALUE ON THE PARTS LIST!
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Construction
1. Jumper wire
J
2. Resistors
R1 : 330 (3 - 3 - 1 - B)
R2 : 330 (3 - 3 - 1 - B)
R3 : 330 (3 - 3 - 1 - B)
R4,R5 & R 6 : see page 9 &10
R7 : 180 (1 - 8 - 1 - B)
R8 : 390 (3 - 9 - 1 - B)
R9 : 1K (1 - 0 - 2 - B)
R10 : 47K (4 - 7 - 3 - B)
R...
3. Diode. Watch the polarity!
CATHODE
4. Resistor array
!
RA1 : 10K (103)
D1 : 1N4007
D...
1
5. IC socket. Watch the
position of the notch!
IC1 : 14p
6. Capacitors.
C...
C1 : 100nF (104)
C2 : 100nF (104)
C3 : 100nF (104)
C4 : 15pF (15)
C5 : 15pF (15)
7. Push buttons
SW2 : Blue up
SW3 : Green up
SW4 : Red up
SW5 : Red down
SW6 : Green down
SW7 : Blue down
SW...
5
C...
construction
8. Switches
SW1 : ON / OFF
SW8 : RGB / effect -mode
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SW1.
9. Voltage regulator
VR...
VR1 : UA78L05
10. Terminal blocks
SK1 : 2p "12Vdc"
SK2 : 2p "Red"
SK3 : 2p "Green"
SK4 : 2p "Blue"
11. Electrolytic Capacitor.
Watch the polarity !
C6 : 100µF / 25V
12. Crystal
X1 : 20MHz
X...
Construction
LD...
CATHODE
17mm
12. LEDs. Watch the polarity!
COLOR= 2...5
LD1 : 3mm Red "R"
LD2 : 3mm Green "G"
LD3 : 3mm Blue "B"
14mm
13. Transistors
TR1 : BUK9535-55
TR2 : BUK9535-55
TR3 : BUK9535-55
14. IC
IC1 : VK8088
(programmed PIC16F630-I/P)
14mm
IMPORTANT
Apply an extra layer of
solder on all copper
PCB tracks.
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Description
Description
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12
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8
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1) On/off switch
2) Mode switch. Select between ‘RGB’- and ‘Effect’-mode
‘RGB’-mode: Red, Green and Blue output levels can be
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individ ually adjusted by means of the up/down buttons
‘Effect’-mode: Allows to choose between 11 built-in effects
3) Output indicator leds.
4) Power supply connector.
5) RED output (3A DC max.)
6) GREEN output (3A DC max.)
7) BLUE output (3A DC max.)
8) RED-level down / ‘previous effect’-button
9) RED-level up / ‘next effect’-button
10) GREEN-level down / ‘reduce effect speed’-button
11) GREEN-level up / ‘increase effect speed’-button
12) BLUE-level down / ‘ previous colour’-button
13) BLUE-level up / ’next colour’-button
7 6 5 4
Connection
Connection
Incandescent lightbulb or halogen lightbulb:
connect the lightbulb to the output R, G or B.
Place a wire jumper f or R4, R 5 and R6.
Polarity is not important. 3A /channel max (36W@12V).
LED-strip with common anode (+) :
Connect the common anode to the (+) of the 12VDC pow er supply.
Connect the cathode (-) of each colour to the (-) of R,G or B on the K8088.
Place a wire jumper f or R4, R 5 and R6.
Max. current consumption is 3A/channel.
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12VDC
-
12VDC
+
COM
R G B
Anode
+
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Connection
LED:
LEDs require a series resistor (R4, R5 or R6)
Determine led voltage drop (Check manufacturer datasheet) .
Rule of t humb: red: 1.7V, green: 2V, blue: 3..4V).
Next, check requir ed LED current.
Example:
Red LED, 1.7V drop, required current: 20mA
Resistor c alculation: (12V- 1.7V) / 0.020 = 515 ohm (choose nearest value,
e.g. 560 ohm)
Resistor power rating calculation: (12V-1.7V) x (12V- 1.7V) / 560 = 0.19W
(choose a 0.25W resistor)
A (+)
C (-)
10
-
12VDC
+
Use
RGB-mode (mode switch into position ‘RGB’)
This mode allows you to compose a desired colour by adjusting the level of each channel.
8) RED-level down
9) RED-level up
10) GREEN-level down
11) GREEN-level up
12) BLUE-level down
13) BLUE-level up
Memory: Once you have composed a colour, you can store it in memory by flipping the mode switch to ‘eff'. Next time,
when you turn on the controller with the slide switch set to ‘RGB’, it will revert to the colour you’ve composed.
Use
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Use
Effect-mode (mode switch SW8 in position ‘eff’)
This mode allows you to select one of the 11 available effects, using the buttons (8) and (9)
Effect # Description
1 Stat ic colour s
2 Sequenc ed colours Same a s abov e, but a utomat ica lly seque nced
3 Sequenc ed primary colours Re d - Gree n - Blue seque ncer
4 Colour fade Fade Red-Gr een- Blue-Re d
5 Flame effect 3 independent flame simulations
6 Stro bo 3 outputs blink wi th 50 % duty cycle
7 Rando m colo urs Rando m colo urs, ha rd transis tions between colo urs
8 Rando m colo urs Rando m colo urs, s oft tr ansit ions be tween colo urs
9 Rando m flas hes Rando m colours , fade 0 -> 100% -> 0
10 Nightlight All channels 100%, next, slow off all channels, finally Blue remains at 10%
11 Traff ic li ght Gree n, Blue, Red, Green s equenc e. Use Blue output f or yello w light
Select a static colour by means of buttons (12) and (13).
Colour s: Re d - Green - Red/ Green - Blue - Red/ Blue - Gr een/Blue - R ed/Gr een/Blue
Effects 2 to 11 feature adjustable speed. Press (11) to increase speed, press (10) to decrease speed
Memory: Once you have selected an effect and t he desired speed, you can store it in mem ory by flipping the mode
switch to ‘RGB'. Next time, when you turn on the controller with the slide switch set to ‘eff’, it will revert to the effect you’ve
selected
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Mounting order overview
Mount the PCB onto the lower part of the housing, see figure.
Place the front and rear sticker on the housing.
Mounting order overview
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Schematic diagram
Schematic diagram.
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+12V
D1
1N4007
SK1
SCREW02
SW2 SW3 SW4 SW5 SW6 SW7
RESISTOR ARRAY A8C10K
SW1
GND GNDGND GND
RA1
C6
100µ/25V
VR1
UA78L05
I O
+12V
+5V
GND
C1
100n
+5V
GND
+5V
R9
C3
IC1
1
100n
PIC16F630-I/P
GND
RA5/T1CKI/OSC1/CLKIN
7
RC3
RA4/T1G/OSC2/CLKOUT
6
RC4
5
RC5
8
RC2
RA0/CIN+/ICSPDAT
9
RC1
RA2/COUT/T0CKI/INT
10
RC0
RA1/CIN-/ICSPCLK
4
RA3/MCLR/Vpp
R10
47K
SW8
+5V
C2
100n
GND
X1
VDD
2
20MHz
3
C5
15pC415p
GND GND
13
11
12
VSS
14
GND
1K
GND
R7
180
GND
R8
390
180
GND
R6
Rb
SK2
SK4
B
B
T3
BUK9535-55
IRF540
R3
330
GND
+12V
LD3
BLUE
R4
Rg
SK3
SK3
G
G
T2
BUK9535-55
IRF540
R1
330
390
GND
LD2
LD1
+12V
GREEN
R5
Rr
SK4
SK2
R
R
T1
BUK9535-55
IRF540
R2
330
GND
LD1
LD2
RED
PCB
PCB
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Modifications and typographical errors reserved - © Velleman nv. H8088IP'1 - 2008 (rev.1)
5 410329 385606
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