Search This Blog

Powered by Blogger.

Translate

Infrared Illuminator Made With LEDs

Figure:1

Figure 1 

As infrared LED array came up with technology and state of the art electronic and optical components that will bring us the ultimate in day and night vision efficiency and high power infrared output.
This can be started by calculating how much infrared radiation you will need in order to light your scene that would be the focal range of your camera since details are lost on most security cameras. With the use of Dremel tool or small bench top grinder, grind down one side of the LEDs slightly and then pack them down to a smaller area. The builder used 19 by 13 LEDs for a total of 247 LEDs, to fit into the inside of a halogen work light.
When the LED array is wired, simply run copper wire along the columns to create the parallel wiring connection for each series chain. The power adapter can be plugged into an AC socket just as it was before modification and cut the AC wiring inside the light enclosure and affixed it directly to the AC power adapter. Materials such as dark tinted glass will also work to conceal an LED array.

To see the rest of the project, go to <http://www.lucidscience.com/pro-led array illuminator-1.aspx>

Jet engine sound generator

Description.

This jet engine sound generator circuit is based on the sound generator IC HT2844P from Holtek Semiconductors. This particular IC can make four sounds namely low speed sound of jet engine, high speed sound of jet engine, missile sound and machine gun sound. Each of these sounds can be activated by connecting the pins 12, 13, 14and 15 to ground by using the respective push button switches. Resistor R3 can be used for manually increasing or decreasing the speed.LED D1 gives a visible indication of the sound.
Circuit diagram.

jet-engine-sound-generator
Notes.
  • The circuit can be powered from a 3V battery.
  • Do not give more than 3.3V to the IC.
  • K1 can be a 200mW/8 Ohm speaker.
  • IC1 must be mounted on a holder.

Page Rank

google pagerank

Write For Us

Submit a Guest Post

Find us on Facebook

Categories

555 Timer IC 7 segment Display 8051 Project AC Circuits Adafruit Alarms Amplifier Circuits Analog Circuits android Arduino arm processor Assembly Languange Atmel Atom Size Audio Circuits augmented reality Automotive Circuits avr Battery Circuits Bicycle Gurad bluetooth Cable TV Circuits Cambridge University Camera Technology Circuit Boards Clipping And Clamping Circuits Clocking And Timer Circuits Computing contact lens Contact Us Form Contests Controller Circuit Conversion Circuits Counter Circuits Digital Electronics diy circuits Downloads EFY EFYTimes Electronic Books Electronic Components Electronic Locks And Keys Engineering Fan Circuits Filter Circuits Fire Alarm free Frequency Fun And Game Circuits future Google Hack n Mod Ham Radio Circuits heart rate monitoring High Voltage Circuits Home Circuits IC Guide ieee Industrial Circuits Infrared Instructables Inventions ipad lcd Led Circuits Light Related Lighting Circuits Medical Circuits Meter Clocks Microcontrollers Microprocessors Mini Projects modules Movie maker NatGeo Navigation Notice Optical Fiber PC Circuits PCB Boards Physics pnp transistor Power Supplies Printing Projects Programmer Project Ideas Projectors Protection circuits Proximity Detectors Radar Radio Circuits Radio Transmitters Raspberry Raspberry Pie Remote Circuits Retis Lab RFID Robot Cars Robotics Science Science Alert Security And Safety Sensor Circuits Servo Motors Smallest Smartwatches sms Software solar cell sound application Spectram Switch Technology News Telephone Related Television Related Test And Measurement Circuits Thermal Projects Tone generator circuits Touch Screen Tutorials Wearables Wi-Fi Wireless
Like us on Facebook
Follow us on Twitter
Recommend us on Google Plus
Subscribe me on RSS