SOUND TO LIGHT EFFECTS USING LED AND VU METER IC C1403

J009

Audio Dancing LED project is a fun filled project which generates a LED dancing sequence depending on the audio level it senses.  This project is based on one of the VU Meter IC LB1403 or CA1403

DOC

Specifications

Power supply input 6 to 9 VDC
Output 5 LED’s
Onboard preset to adjust audio level to the IC
Onboard microphone capsule with Preamp
Terminal pins for connecting power supply input
Four mounting holes of 3.2 mm each
PCB dimensions 39 mm x 67 mm

 

J009-SCH1 PCB_BOT1 PCB_SILK1

BOM1

Warning Flasher LED Based Lights Using 555 Timer IC With Frequency Adjust

J003

LED Flasher is a simple project producing a flashing effect of six LED’s.  This project can be used in all areas where you want to draw attention.  Hi-glow LED’s providing enough flashing light to attract your attention. Can be used as warning light.
Specifications

 

DOC

Supply input 12 V @ 35 mA (6 to 15V Dc Possible)
Onboard preset to adjust flash rate
Terminal pins for connecting supply input
Four mounting holes of 3.2 mm each
PCB dimensions 53 mm x 35 mm
CN1: Supply in 12V DC (6V-15V Supply Possible)
PR1 : Flash Frequency Adjust

 

SCH PCB_SILK PCB_BOT BOM

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (2)

 

4 Bi-Colour LED board provides a simple visual indication to any application which you may require.

DOC

  • Interfacing via box header type connector
  •  Jumper selectable common anode or common cathode mode
  •  Four mounting holes of 3.2 mm each
  •  PCB dimensions 44 mm x 37 mm
4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (3)

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD SCHEMATIC

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (2)

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD PCB

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (1)

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOM

4 BI-COLOR LED BOARD FOR MICRO-CONTROLLER DEVELOPMENT BOARD (1)

Single Digit LED Based 7 Segment SPI Display Using 74HC595

SINGAL DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 (3)

Single Digit Big Display module using 74HC595 IC project will display large size 7 segment single digit number. 3.5inch height, which can be visible over large distance.  More digit can be connected serially to each other easily trough connector.

This circuit is a single digit seven segment big display using a set of 5 LEDs per segment and a shift register for easy control by micro-controller input. Each of the LEDs used in this project are 5mm high glow type.

DOC

  • A ULN2003 IC helps sink higher current flowing through the LEDs to grounds.
  • Resistor R1 to R8 are current limiting Resistors for the LEDs connected in series.
  • CN1 Connector is Data In connector
  • CN2 Connector is optional Data Out Connector if you need to stack more than 1 single display board in series
  • +V CN1 & CN2 should be connected to higher voltage to drive the LEDs
  • VCC Should be connected to 5V DC. This supply can be source from host controller

 

  • Each Segment made up of 5LEDs
  • Series Current limiting resistor provide on each segment
  • Series latched type display using SPI protocol
  • Separate Header Connecter for connection input/output
  • Four Mounting holes 3.2MM each
  • PCB Dimension’s 125MM X 58MM

 

SINGAL DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 (4)

SINGLE DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 SCHEMATIC

SINGAL DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 (2)

SINGLE DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 PCB LAYOUT

SINGAL DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 (1)

SINGLE DIGIT 7 SEGMENT LED BASED SPI DISPLAY USING 74HC595 BOM

 

 


Driving an 8 digit, 7 segment display based upon the 74HC595…

A few weeks ago, I was scanning the Deal Extreme website, and ordered a few different LED displays, not because of any pressing need, but because I wanted to have some display options available if I needed some for a project. I was especially interested in cheap LED displays. One of the ones I ordered was this 8 digit, 7 segment display, which seemed to have a five pin interface. Without thinking about it too much, I went ahead and ordered it.


http://embedded-lab.com/blog/lab-15-scrolling-text-message-on-an-led-dot-matrix-display/


http://www.instructables.com/id/74HC595-digital-LED-Display-Based-on-Arduino-Code-/


 

High Current PWM Halogen Lamp Dimmer Using SG3525

HIGH CURRENT HELOGEN LAMP DIMMER (2)

High Current PWM Halogen Dimmer controller project is designed around SG3525 IC and High current MOSFET.  Project can handle lamp up to 5 Amps (10Amps Possible with big heat sink) and supply 12-24V DC .Ideal for Halogen Dichroic Lamp or Halogen Lamp.

SCH

Features

  • Supply input 15 to 24 VDC
  •  Load-Lamp 12 to 24 VDC @ 5 Amps
  •  Load 10 amps possible with big heat sink on Mosfet)
  •  Onboard preset for frequency adjust
  •  Frequency adjustable 4 KHz to 30 KHz
  •  PWM Duty cycle 0 to 100% (+/- 5%)
  •  Potentiometer for dimming adjust
  •  Soft Start facility
  •  Clamp diode for protection
  •  Power-On LED indicator
  •  Compact design and high quality
  •  Lamp and supply connection via screw terminal connector
  •  Four mounting holes of 3.2 mm each
  •  PCB dimensions 56 mm x 42 mm

HIGH CURRENT HELOGEN LAMP DIMMER (1)

Dark Sensitive LED Light

Dark activated LED light is a simple project which operates a LED when the light falling on the LDR goes below a set point.  The circuit is built using LM393 comparator, LDR as light sensor, preset (potentiometer) for sensitivity adjustment, transistor to drive the LED. The project can also be considered for use in energy saving application.

Features
  • Input – 12 V @ 1A
  • LED 12V 500mA Maximum (6W)
  • Onboard Preset for Level Adjust
  • Operation LED Indicator
  • On Board Power LED
  • Header Connector for Power Supply and LED
  • PCB dimensions 55.45MM X 12.70 MM

Dark-Activated-LED-Light-SCH

SCHEMATIC

Dark-Activated-LED-Light-BOM

PARTS LIST

Dark-Activated-LED-Light-Wiring

CONNECTIONS

Dark-Activated-LED-Light-001

PROJECT PICTURE

Dark-Activated-LED-Light-002

PROJECT PICTURE BACK SIDE

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