A wireless microphone is a portable electronic microphone which allows the user to transmit its voice to an amplifier without any wire connection, hence the name wireless microphone. Making a […]
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How to Make a Bicycle Horn Circuit with Ringtone
A bicycle horn is normally used in bicycles for generating an amplified alarm sound with a press of a button for alerting anybody getting on the path of the running […]
Sequential LED Array Light Circuit
In this article I have explained how to make a sequential LED array light circuit with an sequentially illuminating LED forming a bar graph kind of LED formation. Introduction In […]
220V Solid State Relay (SSR) Circuit using Triac and OptoCoupler
An AC mains solid state relay or SSR is a device which is used for switching heavy AC loads at mains level, through isolated minimal DC voltage triggers, without incorporating […]
12V LED String Light Flasher Circuit for Christmas Decoration
Looking for a simple 12 V LED string light flasher circuit for your next Christmas decoration project? Learn how easy it is to build a LED wig wag string light […]
Make an LED AC Voltage Indicator Monitor Circuit
The LED AC mains voltage level indicator is a circuit that can be used for displaying and monitoring the instantaneous voltage level of any 220 V or 120 V mains […]