Things which you can learn:
*Application of the magnitude comparator IC 7485.
*Application and connection of relay switches to control the on/off of appliances.
*Two way DIP switches
*Concept of Cascaded circuit
IR remote control Timer
Price:(INR) -
300
Price:(USD) - 3
Price:(USD) - 3
Summary
Build a simple vibrational/knock detector with piezo electric sensor and a transistor acting as an amplifier to detect unwanted vibrations in motors or other mechanical devices and prevent damage due to excessive vibrations.
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