Mini Project Topics and Ideas in Electronics
Simple Fire Alarm Circuit:
Here is a simple fire alarm circuit
based on a LDR and lamp pair for sensing the fire.The alarm works by
sensing the smoke produced during fire.The circuit produces an audible
alarm when the fire breaks out with smoke.
When there is no smoke the light from
the bulb will be directly falling on the LDR.The LDR resistance will be
low and so the voltage across it (below .6V).The transistor will be
OFF and nothing happens.When there is sufficient smoke to mask the
light from falling on LDR, the LDR resistance increases and so do the…Read More on Simple Fire Alarm Circuit
Digital Sound Recorder with AVR and DataFlash:
Features
• Digital Voice Recorder
• 8-bit Sound Recording
• 8 kHz Sampling Rate
• Sound Frequency up to 4000 Hz
• Maximum Recording Time 4 1/4 Minutes
• Very Small Board Size
• Less than 700 Bytes of Code Download Digital Sound Recorder Electronics Project
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4 Digit 7-Segment Multiplex DISPLAY
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Automatic Light Beam Shifting Of Vehicles On High Ways
Automatic Speed Regulation Depending On Incoming Vehicle On High Ways(Fuel Injection)
Automatic Light Lamp with Morning Alarm
Automatic Exhaust Fan Control Coupled To Gas Leak Detection
Auto turn off battery charger
Anti Theft Alarm For Bikes
Automatic Heat Detector
Access Control System
Autonomous Robot
Altimeter — To Measure The Altitude
Air Flow Sensor
Automated Traffic Signal Controller
Automatic Control For Unmanned Railway Gate.
Automated Car Parking System
Automated Vehicle Identification And Toll-Pass System.
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