led
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555 timer ic
LED Indicator Light Schematic Circuit Diagram
The purpose of this project is to create an LED-based indication. The LED indicator light is a low-cost electronic project…
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Low Voltage Circuit
High & Low voltage cut-off with delay & alarm Circuit
This High & Low voltage cut-off circuit will safeguard electrical appliances from both overvoltage and undervoltage. When the power source…
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555 timer ic
Digital Stop Watch Circuit
Introduction: Because nothing else can replace a stopwatch, So a digital stopwatch is an evergreen project that can be completed…
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LCD-LED Display
PWM motor speed control using Arduino Schematic Circuit Diagram
PWM or pulse width modulation is a very common method used for controlling the power across devices like motor, light…
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Frequency multiplier
Frequency counter using Arduino (upto 40KHz) Schematic Circuit Diagram
Many guys here were asking for a frequency counter and at last I got enough time to make one. This…
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LCD-LED Display
Dancing light Schematic Circuit Diagram
Here is a simple dancing light circuit based on NE555 (IC1) & CD4017 (IC2). The IC1 is wired as an…
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Cable TV Circuit Diagrams
Multi Wire Cable Tester Schematic Circuit Diagram
Description: A multi-wire cable tester with a separate LED for each wire. Will show open circuits, short circuits, reversals, earth…
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LCD-LED Display
LEDs or Lamps Sequencer Schematic Circuit Diagram
Very simple, versatile modular design. No limits to the number of modules used in the ring Circuit diagram using LEDs:…
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Sound Level Indicator Schematic Circuit Diagram
This project uses an LM3915 bar-graph IC driving two sets of ten LEDs for a 30dB range. The circuit is…
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UPS - Inverter - Power Generator Circuits
Basic UPS Power Supply Schematic Circuit Diagram
Description This circuit is a simple form of the commercial UPS, the circuit provides a constant regulated 5 Volt output…
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