AVT 1853 Manuel utilisateur

• single channel load: 3A

Specifications

• selectable input signal:

• working with LED strips or RGB modules

the fussiest of partygoers.

• 7 effects to choose from

• power supply: 12 VDC

• board size: 79×58 mm

music, but also good lighting. Presented RGB LED

controller circuit will even meet the expectations of

- microphone (MIC)

- LINE IN socket

The key to a successful event is not only a good

The programme then calculates the light intensity

value for each channel and controls the output

transistor in proportion to the result. Activators are

transistors T1...T3 (BUZ11) with a high current-

carrying capacity. There is a LINE IN input on the

board for direct input of an AUDIO signal of 0.7 V

(typical headphone output). You can select the sound

source using the SEL jumper: CINCH (RCA) or

microphone (MIC).

Electrical diagram of the device is shown in Figure 1. It

consists of a microcontroller, an operational amplifier

and power transistors. The input signal is provided by

High: 13…14 kHz.

Medium 6...7 kHz.

the C1 capacitor to the input of the operational

amplifier. The input polarising voltage is determined

by a divider made up of resistors R9, R10, R13, R14.

The microcontroller (ATmega8) is clocked by an

internal RC generator operating at 8 MHz. Analogue

signal from the audio amplifier is measured using an

A/D converter and is delivered to the

PC0 input. The program 'selects' components in the

following frequency ranges from the audio signal:

Low 500 Hz...2 kHz.

Circuit description

RGB LED Illuminophony

AVT 1853

ASSEMBLY DIFFICULTY

kits

PDF

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Fig. 1 Schematic diagram

Fig. 2 Arrangement of components on the PCB

The circuit must be assembled on a single-sided PCB

as shown in Figure 2. Start by soldering resistors and

other small components onto the board and finish by

fitting electrolytic capacitors, transistors and screw

connectors. Microphone can be soldered directly to

the angled goldpin strip. Device assembled flawlessly,

using functioning components, will work as soon as

the supply voltage is switched on.

Mounting and start-up

MEGA8-P

330R

10K 10K 10K

+12V

GND

10K

+5V

LM358N

2.2K

GND

+5V

1uF

33K

GND

+5V

220K

22K

GND

10p

390K

33K

+5V

GND

33K

GND

100K

10p

330R

GND

1uF

GND

7805

+5V

+12V

GND

10K

+5V

GNDGND GND GND GND

+12V

LINE

+12V

PWR

GND OUT1

GND

OUT2

OUT3

PB5(SCK) 19

PB7(XTAL2/TOSC2)

PB6(XTAL1/TOSC1)

GND

VCC

GND

AREF

AVCC

PB4(MISO) 18

PB3(MOSI/OC2) 17

PB2(SS/OC1B) 16

PB1(OC1A) 14

PB0(ICP)

PD7(AIN1) 13

PD6(AIN0) 12

PD5(T1) 11

PD4(XCK/T0) 6

PD3(INT1) 5

PD2(INT0) 4

PD1(TXD) 3

PD0(RXD) 2

PC5(ADC5/SCL) 28

PC4(ADC4/SDA) 27

PC3(ADC3) 26

PC2(ADC2) 25

PC1(ADC1) 24

PC0(ADC0) 23

PC6(/RESET)

US1

T1 T2 T3

R4 R5 R6

US2A

US2B

JP1

R10 R11

R12

R13

R14 R15 R16

R17

GND

VO 2

US3

C9 C10

R18

SEL

C11C12

- Changing colour randomly to the bass rhythm.

You select he effect using the MODE button (S1):

- Red.

- Blue.

- Green.

- White.

- Illuminophony.

- Off.

Operation

C10

Semiconductors:

Capacitors:

Resistors:

R10, R14, R15:............33 kΩ (orange-orange-orange-gold)

Z: ....................................jumper (0 Ω)

D1: .................................1N4007 !

R13: ...............................390 kΩ (orange-white-yellow-gold)

C1, C6:. .........................1 μF (can be labelled 105)

R1-R3, R17:. ................330 Ω (orange-orange-brown-gold)

R8:..................................2,2 kΩ (red-red-red-gold)

R11: ...............................220 kΩ (red-red-yellow)

R12: ...............................22 kΩ (red-red-orange)

R16: ...............................100 kΩ (brown-black-yellow-gold)

C2, C4: ..........................10 pF (can be labelled 10)

C7, C8, C11, C12:.......100 nF (can be labelled 104)

R4-R7, R18: .................10 kΩ (brown-black-orange-gold)

R9:..................................1 MΩ (brown-clack-green-gold)

C3:..................................10 μF !

C9, C10:........................100 μF !

C5:..................................1 nF (can be labelled 102)

T1, T2, T3: ....................Power transistors, e.g... BUZ11 !

US2: ...............................LM358 !

US1: ..............................ATMEGA8 !

US3: ...............................7805 !

Other:

S1: ..................................Microswitch angle

L1: ..................................choke

SEL: ................................goldpin 1×3 + JUMPER

MIC: ..............................microphone electret

X1:..................................connectors DG301/3 - 2 pcs

X2:..................................connector DG301/2 - 1pcs

List of elements

To access high-resolution images download the PDF file.

Begin assembly by soldering the components onto the board in order of size from smallest to largest.

When mounting components marked with an exclamation mark, pay attention to their polarity.

Frames with diagrams of the leads and symbols of these components on the PCB and photographs of the

assembled kit may be helpful.

US2 MIC

US3

US1

shortenedshortened

sideside

shortened

side

Marker

shorter

leg

Marker

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Notes

AVT SPV reserves the right to make changes without prior notice.Installation and connection of the appliance not in accordance with the instructions, unauthorised modification of

components and any structural alterations may cause damage to the appliance and endanger persons using it. In such a case, the manufacturer and its authorised representatives shall

not be liable for any damage arising directly or indirectly from the use or malfunction of the product.

The self-assembly kits are intended for educational and demonstration purposes only. They are not intended for use in commercial applications. If they are used in such applications, the

purchaser assumes all responsibility for ensuring compliance with all regulations

This symbol means do not dispose of your

product with your other household waste.

Instead, you should protect human health

and the environment by handing over your

waste equipment to a designated collection

point for the recycling of waste electrical

and electronic equipment.

Leszczynowa 11 Street,

03-197 Warsaw, Poland

https://sklep.avt.pl/

AVT SPV Sp. z o.o.