This LED circuit can be used to indicate the presence of 220 V mains AC supply, without using a transformer. The long life of LEDs make them extremely appropriate for […]
Logic Tester for TTL, CMOS and All Logic Families
The circuit described here works as a logic tester for TTL circuits, CMOS circuits as well as other logic families with similar behavior. The circuit is capable of indicating an […]
Designing Large LED Dispay Circuit
First of all, this project will not seem interesting to every reader. But, this has many possible applications. This is a seven segment display, with a diameter of 280x140mm. The […]
Universal LED Bar Graph Indicator Circuit
This universal pointer or LED bar graph indicator circuit can be used with any kind of input sensor that delivers a exponentially varying voltage. This can be for example from […]
Automatic LDR Switch Circuit with Flashing Lamp
This simple flashing LED light will begin flashing as soon as darkness sets in, and will shut off in the morning when day light arrives back. The operation of the […]
Heatsink Temperature Monitor Circuit
Heatsinks are a necessary inclusion in circuits which are rated to work with high wattage and high current supplies. The heatsink is installed on devices so that it draws the […]