Hobby Project Kit

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Shree Ram Electronics
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CHIP-TALK HOBBY PROJECT

S&T - MICS 007

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Project Description

Book Content 

• A simple melody player
• Melody player using speaker
• Musical call bell
• Musical hold-on for Telephone
• Timer with Musical Alarm
• Intercom with Musical Ringtone
• Soft Musical Telephone Ringer
• Touch-sensitive Musical Bell with delay
• Musical Continuity Tester
• A set-reset (Bi-stable) flip flop
• Touch Sensitive Alarm
• On/off Ringer
• Toilet Busy Indicator
• Electronic Direction Pointer
• Simple Soil Moisture level Controller
• Touch Sensitive Single-chip Flasher-cum-beeper
• Automatic Pump Controller
• Generating Three Tones Using a Single digital IC
• Divide-by-N counter using CD4033
• Divide-By-N Counter Realization 
• Telephone Call Counter
• Mains Interruption Counter with Indicator
• Timer For Students
• DICE with 7-segment display
• Simple smoke Alarm
• Concealed AC mains line detector.
• Speed Control Of Dc Motor Using Pulse-Width Modulation.
• IR to RF Converter.
• Contactless Telephone Ringer.
• Preamplifier (signal booster) for FM Band.
• Condenser mike Amplifier.
• Cordless F. M Mike.
• Laser Controlled On/Off Switch
• Phone broadcaster
• Anti-theft Alarm.
• Touch Dimmer.
• Doorbell using UM3561
• Poor man’s Miniature hearing Aid.
• Line-powered two-tone ringer.
• Ding-Dong Bell.
• Rechargeable White LED Torch

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CHIP-TALK HOBBY PROJECT

CHIP-TALK HOBBY PROJECT

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