LED Flasher Circuit II [PIC] | Next Electronics

I don't know why, but people like blinking lights. You see LED chasers everywhere, in TV shows (Knight Rider), movies, and store windows. This schematic is my version of a simple 10 LED chaser. There is no 555 timer used...

Bicolour LED flasher circuit

This circuit is similar to various published flasher circuits that utilize the IC 555 as a free-running multivibrator. The primary distinction is in the method of flashing bi-color LEDs. When the output at pin 3 of the IC 555 goes...

LED Digital Panel Meter

To explain in a little more detail, using the ATMEGA8's internal 2.5 volt band gap reference means that by using a resistive divider ahead of the A-to-D converter, the input could be scaled such that any voltage range from 0...

puff to off circuit

This is a circuit diagram of a simple circuit in which the LED can be activated only by a gust of air. A condenser microphone (M1) is used to detect breath. When the S1 button is pressed, transistors Q2 and...

Microcontroller-based: Electric fan switching relay or triac

A project is underway to control the speed of an electric fan (220Vac, 60W, 5A max.) automatically using a microcontroller based on certain parameters. The circuit design for controlling the speed of an electric fan involves several key components to ensure...

Embedded Web Server for Water Level Monitoring

Throughout this year, significant attention has been dedicated to the development of an embedded web server device, a concept that has long been envisioned. This idea is not entirely original; it builds upon existing developments and references available on various...

220v LED DIMMER

A circuit was discovered in a computer, and there is uncertainty regarding its origin and functionality. The main inquiry is whether this circuit can effectively dim 220V LED bulbs. The circuit in question likely utilizes a phase control method for dimming,...

Simple 3-6V LED Flasher

If you are familiar with LED flashers using transistor, you may know the basic one uses two transistor, one capacitor and three resistors. There is other kind of oscillator called "flip-flop". As I'm starting to develop some basic circuits, I...

Programmers in circuit serial programming

The EPIC Plus Programmer, also known as the Serial Programmer, USB Programmer, or U2 USB Programmer, can be utilized for in-circuit serial programming of serially programmable PIC Microcontrollers via the 10-pin expansion header J3. Connections for Vpp, RB6, RB7, and...