In this post I will explain this 220V RGB slow fading LED bulb circuit step by step and we can start from the left side and slowly move toward the right side so that you can understand what each block is doing. We use many parts like 555, 4017, 33uF, D1 to D4, and others […]
LED
Blinking an LED with Delay – Arduino Basics
Here I have explained the bare minimum code for compiling an Arduino and also the method of blinking an LED using an Arduino board. Learning the Bare Basics Here we discus and try to understand the fundamental minimum code that one would need to compile an “Arduino Sketch” which consists the setup()method and the loop()method. […]
3-Digit LED Capacitance Meter Circuit
This project is yet another test equipment that can be extremely handy to any electronic hobbyist, and building this unit can be a lot of fun. A capacitance meter is a very useful test equipment as it allows the user to check a desired capacitor and confirm its relaibility. Ordinary or standard digital meters mostly […]
LED Oscilloscope Circuit
The simple LED oscilloscope circuit I have explained in this article can be used for analyzing low frequency waveform through a 10 x 10 LED matrix display. Due to the involvement of only 100 LEDs in the display board, the resolution is low, and the waveform display clarity is not so impressive. Yet, this LED […]
Light Meter Circuit with LED Bar Graph
In this article I have explained 3 different light meter circuits for measuring power of light. In the first method we will use only a solar cell and a multimeter, in the second method we will use an op amp and a moving coil meter, and in the third method we will see how a […]
Simple LED Forward Voltage Drop Tester Circuit
Semiconductor LEDs (Light Emitting Diodes) produce light when current flows through them. In comparison to conventional lighting sources, LEDs offer a number of benefits, including high energy efficiency, extended longevity, and low thermal output. The forward voltage drop of an LED is one of the important factors that affects how well leds performs. We will […]