Programmed LED strip strobe circuit (Multi type with 2 channels)

Mainly designed for police like light switching. This circuit works best with LED strips, High power LEDes, and also Applicable for Indicators.
Well Programmed, 3 Switchable patterns, 1 pattern includes 3 set of blink types
This circuit is made by PIC microcontroller, here I pre-programmed for 3 sets of 3 type functions, You can edit that program…
The given PCB is designed with SMD packages,The project also including schematic with normal components make PCB yourself.

This circuit is formally “MMD Blinker”, made by / made for “Mozambi Moto Digital”

Schematic:

Components:

• IC1: PIC12F675 (wrong in schematic, same package and pin-out)
• IC2:LM7805 (wrong in schematic, same package and pin-out)
• Resistors: 10K, 1K, 4.7K, 100 Ohm.
• Capacitors: 0.1uF (tantalum recommended) .
• Diodes:
• D2:1N4007
• D1: 5V1 Zener diode.
• Q3,Q4: BC547
• Q1,2: PNP high power any.

PCB layouts, Project files(Eagle & MikroC) and .HEX code

• MikroC file: Download 
• Eagle File: Download 
• Programeed .HEX file: Download
• SMD-PCB
  

If any problems. comment below

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Modified 2 stage blinker circuit for LEDes and brakelight

This circuit is like an advanced version of first blinker circuit, it uses 2 astable circuits, not 2 IC. We can use 556 here. 2 Astable multivariator of Low and High frequencies are cascaded and gives good programmed pulse like 1 long pulse and 2 to 5 sort pulse (Depends upon setting).

The below circuit shows Multi-function blinker circuit

Components:

IC: U1A,U1B : LM556 (Duel timer IC)
Resistors: R1: 1.2K, R2:1K*, R3 750 Ohm, R5:220 Ohm
Pot: R4:1K Ohm, (R2:2K*)
Diode: D1,D2,D3: 1N4007.
Transistor: Q1: MJE200 or any power NPN transistor.
Capacitors: C1:100uF, C2,C4:10nF, C3:22uF.

Description:

• The First stage multivibrator is set to 5 hz, 50% duty cycle (on off 5 times in second ;) ).
• The second stage is a variable one. it varies from 15hz to 160hz
• When first stage in OFF state the second stage is ON -> High only
• When first stage is ON, The trigger circuit will activate second stage and low frequency pulses

Output graph:

PCB Layout & Project files:

• Multisim
• Cadsoft Eagle

If any problems, Comment below

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Simple 12V blinker (strobe) For Horns,Brakelight etc

Its a simple 555 Astable multi-vibrator circuit, for blinking 12V DC.

• It can be connected for brake light, blinking brake-lights draws more attentions than normal ones.
• Can be connected for horns for stroked sound (relay is needed).
• Can be used with LED strips.

Below schematic shows circuit of blinker.

Components:

1. U1: LM555
2. Resistors: R1:100 Ohm, R3:220 Ohm
3. Variable resistor (Potentiometer)R2 2K ohm
4. Capacitors: C1: 22uF(electrolytic),C2: 10nF (Ceramic or tantalum).
5. Transistor Q1 MJE200G or any NPN power Transistor
6. Diodes: D1: 1N4007, D2: 1N4745 (16V zener) -1 
7. Relay*.

* Ground may be body or battery -ve terminal.
*No need of 10K resister at output.

Connection for brake light:

PCB layout & Project files:

 

Project:

• Multisim Project: Downlaod

• Eagle cad PCB project : Download

If You have any problems, Comment below.

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