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  • Diagram is the sensory door bell

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  • Electronics during fishing.

    Many tomcats love fish, many tomcats catch fish, but not each tomcat knows the fact that fish (especially perch) will peck more willingly if we fishing line with the hook force to vibrate with a frequency of from 1,5 to 12Hz.  VN:F [1.6.9_936]please wait…Rating: 5.0/10 (1 vote cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • Metal detector

    But everything because he wanted to make a present gift, but not to reach from the dusty mezzanines that which was soiled and it is not necessary. Since tomcat the essence is very curious, my gift, metal detector – greatly will prove useful. VN:F [1.6.9_936]please wait…Rating: 5.5/10 (2 votes cast)VN:F [1.6.9_936]Rating: +1 (from 3 votes)

  • Pot plant water tester.

    This simple device checks if their is water in a pot plant. VN:F [1.6.9_936]please wait…Rating: 1.5/10 (2 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • Programmable Digital Code Lock

    A programmable code lock can be used for numerous applications in which access to an article/gadget is to be restricted to a limited number of persons. VN:F [1.6.9_936]please wait…Rating: 10.0/10 (1 vote cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • Ultrasonic Pest Repeller

    It is well know that pests like rats, mice etc are repelled by ultrasonic frequency in the range of 30 kHz to 50 kHz. Human beings can’t hear these high-frequency sounds. VN:F [1.6.9_936]please wait…Rating: 0.0/10 (0 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • Fire Alarm

    This circuit warns the user against fire accidents. It relies on the smoke that is produced in the event of a fire. VN:F [1.6.9_936]please wait…Rating: 0.0/10 (0 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)