led interfacing with lpc2148 arm7 primer circuit

The gap between TTL (Transistor-Transistor Logic) devices and personal computers can be effectively bridged with modern microcontrollers. These microcontrollers not only incorporate a central processing unit (CPU) but also include program and data memory, EEPROM, input/output (I/O) ports, timers, and...

220V LED Flasher

This is a 220V LED flasher circuit designed as a reliable alternative to thermally-activated switches for flashing Christmas tree lamps. The circuit is cost-effective and easy to assemble. Schematic diagram: Component Parts: R1 10Ω. The 220V LED flasher circuit operates by...

How to connect LED's directly to MAINS

A LED is defined as "light-emitting diode: diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used." As the LED is a diode, it doesn't conduct electricity in both...

ALPHANUMERIC LED DISPLAY PROJECT

A tiny sandwich flag connected perpendicular to the motor spindle aids observation of how long it takes to complete one full rotation. This worked initially, as each burst from the capacitor barely moved the flag 1/4 of a rotation. As...

Cheap led christmas light flasher circuit is controlled by audio

Individuals seeking a distinctive gift for Christmas and New Year may find this project appealing. Certification of this project will undoubtedly create a preference for it. The project in question appears to be a creative endeavor aimed at providing a unique...

Robo Atmega328p project

This project was designed to introduce a friend to microcontrollers and circuits using various functionalities and spare parts. A PS2 numpad was utilized as the key entry mechanism, which was found at a thrift store and included the necessary connector....

LED Flashlight circuit with MAX1811

White LEDs have a rated current at a voltage drop of about 3.3 to 3.4 V. It is ideal to be powered from the battery voltage which is slightly larger. Then there is the best energy used. In this I...

LED As Photodiode

In the project LED Touch Sensing by Jeff Han, a remarkable phenomenon occurs with an LED matrix that not only illuminates but also detects finger touches. Initially, it was assumed that a special type of LED matrix was utilized, but...

blinking-led-circuits.html

This LED series will blink alternately. The operation is determined by the NE555 integrated circuit, with transistors used to reinforce each section (20 upper, 20 lower) for optimal performance. The 555 circuit described below functions as a flashing bicycle light...