Engineering projects

 

Christmas tree (programmed to play and flash at different speeds)

 

Mobile water heater

 

Heating element with simistor (saves 15 times of electricity)

 

Heating element with diode (saves 15 times of electricity)

 

Air ioniser (negative ion generator)

 

Home security system

 

Home security system 2

 

Self driving car

 

555 timer

 

Multivibrator

 

Paper tanks

 

Laser and OPC drum

 

Light bulb testing

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