This is small and simple MIC preamplifier circuit using op-amp IC LM358 and it uses op-amp to make weak sound from MIC more strong, so it boosts low audio signal into stronger one. Also, the circuit is good to record voice or connect to speaker and it is easy to make with not many parts. […]
Simple Wireless Power Transmission Circuit
Wireless power is not new idea, but long time ago even Nikola Tesla tried this! Now, many things like phone, toothbrush and some medical stuff charge without wire, but still we can make it better. In this post, we will show how to make a easy Simple Wireless Power Transmission Circuit with transmitter and receiver […]
Wireless LED Light Circuit
Nowadays, there are wireless charging inside many things like phone and even big medical machines. So, in this article we will show how to make Wireless LED Light Circuit which light using one small chip called IC 555, also no wire needed, the LED will light up to show how wireless charging works. What is […]
Red Blue Police Light Flasher Circuit
This article show how to make a Red Blue Police Light Flasher Circuit, as this circuit uses two IC 555 chips which are very common and each chip run at different speed. Hence, they connect to two LED groups in special way, in like opposite direction and this make LEDs blink one after other and […]
Battery Voltage Level Indicator Circuit using 3 LED
To begin with, Battery Voltage Level Indicator Circuit using 3 LED is small circuit to show battery voltage with 3 LED. Here, one LED for low, one for medium and one for full charge, which helps to know battery is good or need charging. Thus, we can easily make this circuit and use it for […]
How to Make a Simple LED Bulb Circuit
Due to their growing popularity, people now commonly call LED lights ‘LED bulbs’ or ‘solid-state lights. Before 15 years these bulbs were not so bright, but these lights use very less power like only 0.5 to 3 watts so they save lot of electricity bill. But still we can make our own easy LED bulb […]