8 LED Chase Controller (Project)

Description: A bare-bones controller used to drive 8 single color LEDs. Based on an 12F675 and a high-power shift register, and single p...

Bi-stable Switch for AC mains

This AC mains-operated bistable  switch turns on or turns off a device using a miniature neon lamp and a few discrete components. This s...

APIS Automatic Plant Irrigation System with microcontroller AT89C2051

how to write a c code for a automatic sprinkler system? The Project (APIS Automatic Plant Irrigation System with microcontroller AT89C205...

LED LAMP

              LEDs are available in different colours powered by direct current (DC) source. These LEDs are available as surface mount...

Dual Supply From Single Battery SourCe

Dual-voltage power supply is required especially for powering the op-amps and some of the instrumentation amplifiers. A few low-power ...

MONITOR AND CONTROL OF GREEN HOUSE ENVIRONMENT

We live in a world where everything can be controlled and operated automatically, but there are still a few important sectors in our c...

An Introduction to Embedded Systems

Embedded System – What is it?     Whenever I hear the term “Embedded System”, what comes to mind is “A combination of hardware and soft...

ADVANCED WEB SERVER

INTRODUCTION    The usage of web server systems for information interchange has been quite a common practice. Analyzing the condition of...

Home Automation Over Internet

Home Automation Automation is the process of automatically performing everyday functions around the home to save you time, energy, money and...

Automatic fading lights ( Christmas Special ){update downloadable Links}

Suitable for 230V incandescent bulbs,Ideal for Christmas decorations. Parts: R1------470R 1/2W Resistor R2,R3-----10K 1/4W Resis...

TIMER WITH MUSIC

         This simple timer can be set to run for different time settings (30 seconds to 4.5 minutes). Also, a musical note is played at ...

Audible Resistance-checKeR

              When measuring the resistance between two points in a circuit, you have to watch the resistance meter while ensuring tha...

Door Knocks Alarm With Counter/Timer

This low-cost circuit uses the piezoelectric element of a piezo-buzzer as the input sensor. The piezoelectric element plate is fixed at the...

HIGH LEVEL DETECTOR

HIGH LEVEL DETECTOR                   Measurement of peak level is useful while testing an amplifier or a similar device. It is handy...

Ultra Sonic Transmitter & Receiver (switch)

      The ultrasonic transmitter uses a 555 based astable multivibrator. It oscillates at a frequency of 40-50 kHz. An ultrasonic trans...

Dancing Lights

        Here is a simple circuit which can be used for decoration pur- poses or as an indicator. Flashing or dancing speed of LEDs can b...

Variable Duration Digital Timer

Here is a versatile on-off (or off-on) timer circuit. Its time delay can be set from seconds to hours. The time for which the circuit wi...