LED SEQUENCER CD4017-NE555

This interesting project is complemented by the flashing led controlled by a 555 and a potentiometer.

Light Sequence uses the terminal output of 555, and according to the flash time controls the light sequence using 555 IC and 4017 IC.

It is one of the most interesting projects for those who are new to electronics, sequential led lights to adapt to any situation, for Christmas, for cars.

Well, you are in the right place, here we provide you with the led light circuit using basic and cheap components such as the Integrated Circuit 555 and CD4017.

GERBER PCB:

https://mega.nz/file/fYgQ3SQa#plTSk9Aj4XEGNekXfk0dYT8eOmA-K-DPGQ9kESOeFvc

Here we will see the schematic diagram and the electronic components that we use for this project and their values

The CD4017 is a 10 output counter divider or decoder based on CMOS technology that also has a TTL mode version called the 74HC4017.

 This circuit consists of a 5-stage Johnson counter that can divide or count by any value between 2 and 9, with resources to continue or stop at the end of the loop.

 The CD4017 is often used as a light sequencer and low frequency crossover. In the world of electronics and students, it is often widely used for various electronic projects, plus it can be purchased for very little money. Its low price makes it ideal to be able to carry out inexpensive projects or carry out tests and home experiments.

 The CD4017 has 16 pins in total, of which the integrated circuit is powered through pin 16 and due to its CMOS technology, it can be powered from 3 to 15 volts of direct current. Its outputs (which are 10 and count from 0 to 9) start from pin 3 (Q0) and are not found sequentially, ending at pin 11 (Q9).

The CD4017 can carry out operations as long as it receives a train of pulses through pin 14. Every time it receives a posiive edge, it will advance one position in its counter and when it reaches the end, it will activate pin 14 so that we can connect another CD4017 to extend the count up to 20 steps. This type of connection is called a "cascade connection".

Timer IC 555 is an integrated circuit used in the generation of timers, pulses and oscillations.

The 555 can be used to provide time delays, as an oscillator, and as a flip flop integrated circuit.

Its derivatives provide up to four synchronization circuits in a single package.

Characteristic:

• Supply Voltage VCC: 4.5 to 15 V

• Current Consumption (VCC = +5 V): 3 to 6 mA

• Current Consumption (VCC = +15 V): 10 to 15 mA

• Output Current (maximum): 200 mA

• Maximum Power Dissipation: 600 mW

• Power Consumption (minimum): 30 mW @ 5V, 225 mW @ 15V

• Operating Temperature: 0 - 70 °C

In this project we will use the astable mode so that it can give me a train of pulses at the output and thus activate the CI CD4017

1 CI NE555

1 IC CD4017

2 RESISTOR 1/4W 1.5K

1 RESISTOR 220ohm 1/4W

1 CAPACITOR 1UF16V

1 CAPACITOR 100UF25V

1 "D" TYPE CONNECTOR

1 POTENTIOMETER 100K

10 LED 5MM RED

1 LED 5MM YELLOW

1 PCB

We design the pcb in easyeda and we will obtain how our PCB will look in 3D

10pcbs at $5 order them here www.pcbway.com

We thank PCBWAY for the professional pcb they provide us for this project.

GERBER PCB:

https://mega.nz/file/fYgQ3SQa#plTSk9Aj4XEGNekXfk0dYT8eOmA-K-DPGQ9kESOeFvc