Sunday, February 22, 2009

Engineering Projects

§ Water-level Indicator

o Simple, two-wire, remote monitoring unit

o Three-LED level display, 9V battery powered

§ Water-level Alert

o Beeper or flashing LED alert

o 1.5V battery powered portable unit

§ Temperature-controlled 12V dc Fan

o Suitable for computer cooling fans

o LED motor speed indicator

§ 120 and 240Vac LED Voltage Indicator

o Useful for power lines control

o Simple, transformerless circuitry

§ IR Remote-Control Checker

o Suitable for any Infra-red emitting device

o 3V battery supply

§ Water Pump Relay Control

o Water reservoir automatic level control

o Simple circuitry - 12V supply

§ 230Vac Lamp Toggle Switch

o Compact, transformerless circuitry

o No relays employed

§ Fridge door Alarm (2nd Version)

o Alternative version of the popular circuit

o 3V battery supply - Still operating at 1.3V

§ Emergency Light & Alarm

o Powered by two AA NI-CD batteries

o Four switchable options

§ Clap Relay

o Clap sensitive on-off Relay

o 3V Battery operated, small portable unit

§ Bidirectional Photoelectric System

o Detects and counts inputs and outputs

o Suited to control Lamps, Household Appliances etc.

§ Courtesy Light

o 15 seconds delayed switch-off

o A good idea for bedroom lamps

§ Door Alarm

o Hangs up on the door-handle

o Beeps when someone touches the door-handle from outside

§ Bedside Lamp Timer

o 30 minutes operation

o Blinking LED signals 6 last minutes before turn-off

§ Timed Beeper

o Beeps 7.5 seconds after a preset time

o Adjustable time settings: 15 s. 30 s. 1 min. 2 min. & others

§ Temperature-controlled Fan

o Gradually increases speed as temperature increases

o Widely adjustable temperature range

§ Self-powered Door-bell Watcher

o Detects if the door-bell has rung in your absence

o Also suitable for different electric appliances

§ Dark-activated 230V Lamp

o Compact circuitry using small-size parts only

o Can be wired in parallel to existing switches

§ Energy Leak Detector

o High sensitivity, portable temperature comparator

o Detects draughts around doors, windows, etc.

§ Broken Charger-connection Alert

o Detects if a device is not properly connected to its supply

o Suitable for battery chargers, portable appliance supplies etc.

§ Ultra-simple Voltage Probe

o Detects 1.8 to 220 Volts DC or AC

o Minimum parts counting

§ Digital Remote Thermometer

o Remote sensor sends data via mains supply

o Temperature range: 00.0 to 99.9 °C

§ Self-powered Fast Battery-Tester

o Tests 1.5 to 15 Volt cells

o Two-LED display, no power supply required

§ Room Noise Detector

o One LED monitors three levels: 50, 70 & 85 dB

o Useful to detect too noisy environments

§ Battery-powered Night Lamp

o Ultra-low current drawing

o 1.5V battery supply

§ Infra-red Level Detector

o Useful for liquids level detection and proximity devices

o Up to 50 cm. range, optional relay operation

§ Nocturnal Animals Whisker

o A low-rate flashing lamp drives away undesired visitors

o Automatic on-off operation

§ Live-line Detector

o Detects the presence of a live mains conductor

o Minimum parts counting

§ Heating System Thermostat

o Controlled by indoor and outdoor temperature

o Simple, high reliability design

§ Mains Remote-Alert

o Beeper and/or LED remotely-operated via mains supply line

o Simple circuitry, easy to build units

§ Cellular Phone calling Detector

o Flashes a LED when detecting an incoming call

o Powered by one 1.5V cell

§ AC Current Monitor

o Senses high current-flow into power cables

o No wire-cutting, three versions available

§ Smart Trailing Socket

o Mains sockets switched automatically by a Control Socket

o Up to 1000W switched power

§ Fridge door Alarm

o Beeps if you leave open the door over 20 seconds

o 3V battery operation, simple circuitry

§ Plant Watering Watcher

o A flashing LED signals the necessity to water a plant

o Very low current consumption - 3V powered circuit


Final year project said...

Nice project list. Other project report can also be found at Final Year Projects.

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