Thursday, December 2, 2021
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This 4x4x4 LED cube for use in science laboratories is very easy to assemble. Its LEDs light up in different patterns, creating mesmerising lighting effects. LED cube circuit and working Fig. 1 shows the author’s prototype of the 4x4x4 LED cube....
This decade counter based flash light circuit generates flashing lights in running pattern. In conventional running lights, the LEDs glow one by one. In this circuit, the LEDs flash a number of times one by one. Decade counter based flash...
Here is a simple fuel reserve indicator circuit for monitoring the fuel level in vehicles. It gives an audio-visual indication when the fuel level drops alarmingly below the reserve level, helping you to avoid running out of petrol on...
A digital decoder IC is a device that converts one digital format into another, and one of the most commonly-used device for doing this is the binary-coded decimal (BCD) to 7-segment display decoder. The 7-segment light emitting diode (LED)...
Whether for work or leisure, we usually end up spending hours together on a computer. A desk lamp helps enhance efficiency, output, and comfort and help fine tune the atmosphere of a room in more ways than one. In...
Here we make a business card useful by turing it into a business card flashlight, that people really do not want to throw away and use it as a piece of advertising. Essence of this project is that anyone...
Wireless power is transferred from transmitter to receiver coil using inductive coupling principle. For wireless power transfer to work efficiently, frequency of the transmitter and the receiver must be tuned to the same frequency. LC tank of transmitter side...
Auto makers have been gradually switching to light emitting diode (LED) lighting for automotive headlamps because of its features such as high efficiency and long service life. In addition, from a safety perspective, applications of LED-driven daylight/daytime running lights...
Why is the LED lighting industry abuzz with light emitting diode chips on boards (LED bBs)? What makes these the current favourite? Which applications are these good for and for which ones should these be avoided? Most importantly, what...
Lighting control technology has seen some interesting advances in the last couple of years. This interview takes a look at what those changes are, and what is driving the sector as a whole. Manjul Trehan, country head & director sales,...