led sequencer chaser ne555 4017
Description: This circuit features a LED sequencer/chaser utilizing the CD4017 and NE555 integrated circuits (ICs). The CD4017 is a CMOS counter IC with 16 pins, providing 10 outputs based on the clock pulses received at its clock input, pin 14. The NE555, a widely used timer IC, functions in this circuit as an astable multivibrator, generating continuous clock pulses for the CD4017. As a result, the CD4017 creates visually appealing chasing light effects.
The LED sequencer circuit operates by leveraging the capabilities of both the CD4017 and NE555 ICs to produce a dynamic light display. The NE555 timer is configured in an astable mode, which means it continuously oscillates between its high and low states. This oscillation generates a square wave output that serves as the clock signal for the CD4017 counter.
The CD4017 counter has ten output pins (Q0 to Q9), each corresponding to a specific count of the clock pulses it receives. As the NE555 generates clock pulses, the CD4017 advances its count with each pulse, sequentially activating each output pin in turn. This results in a chaser effect as the LEDs connected to these output pins light up one after the other in a cascading manner.
The design of this circuit is straightforward. The NE555 timer requires a resistor-capacitor (RC) network to set the frequency of the oscillation, which determines the speed of the LED chase effect. By adjusting the values of the resistors and capacitors in the NE555 circuit, the timing can be modified, allowing for control over the rate at which the LEDs light up.
In practical applications, this LED sequencer can be used for decorative lighting, indicators, or in displays where a visually striking light pattern is desired. The simplicity of the circuit also makes it suitable for educational purposes, allowing learners to understand the operation of counters and timers in electronic circuits. Proper power supply and grounding should be ensured to maintain the functionality of both ICs, and appropriate current-limiting resistors may be used for the LEDs to prevent damage.Here is a circuit of a LED sequencer / chaser using CD 4017 and NE555 IC. CD 4017 is a CMOS counter IC consist of 16 pins. This IC gives 10 outputs according to the clock pulse it receives from the clock input, which is pin 14. The another IC used in this circuit is NE555 which is a timer IC. NE555 is a very famous IC and used in wide verity elect ronic projects to perform different tasks. In this circuit it is working as an astable multivibrator and its providing continuous clock pulses to the CD 4017 IC. Due to which CD 4017 produces very beautiful looking chasing light effects.
The LED sequencer circuit operates by leveraging the capabilities of both the CD4017 and NE555 ICs to produce a dynamic light display. The NE555 timer is configured in an astable mode, which means it continuously oscillates between its high and low states. This oscillation generates a square wave output that serves as the clock signal for the CD4017 counter.
The CD4017 counter has ten output pins (Q0 to Q9), each corresponding to a specific count of the clock pulses it receives. As the NE555 generates clock pulses, the CD4017 advances its count with each pulse, sequentially activating each output pin in turn. This results in a chaser effect as the LEDs connected to these output pins light up one after the other in a cascading manner.
The design of this circuit is straightforward. The NE555 timer requires a resistor-capacitor (RC) network to set the frequency of the oscillation, which determines the speed of the LED chase effect. By adjusting the values of the resistors and capacitors in the NE555 circuit, the timing can be modified, allowing for control over the rate at which the LEDs light up.
In practical applications, this LED sequencer can be used for decorative lighting, indicators, or in displays where a visually striking light pattern is desired. The simplicity of the circuit also makes it suitable for educational purposes, allowing learners to understand the operation of counters and timers in electronic circuits. Proper power supply and grounding should be ensured to maintain the functionality of both ICs, and appropriate current-limiting resistors may be used for the LEDs to prevent damage.Here is a circuit of a LED sequencer / chaser using CD 4017 and NE555 IC. CD 4017 is a CMOS counter IC consist of 16 pins. This IC gives 10 outputs according to the clock pulse it receives from the clock input, which is pin 14. The another IC used in this circuit is NE555 which is a timer IC. NE555 is a very famous IC and used in wide verity elect ronic projects to perform different tasks. In this circuit it is working as an astable multivibrator and its providing continuous clock pulses to the CD 4017 IC. Due to which CD 4017 produces very beautiful looking chasing light effects.
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 Stroboscope with EG1951-ND
The rotary switch is available for $5.00USD as of 2003 from DigiKey under part number EG1951-ND or EG1952-ND. It is a real pain to operate this circuit without a proper switch. You can put multiple 4017 ring counters in series...
10 led VU Meter using LM3915
The circuit diagram illustrates a straightforward circuit design featuring 10 LEDs. It employs a series of half-wave rectification using the precision IC2 TL071, along with a single LM3915 IC that regulates the LEDs, functioning as a VU meter indicator. The...
5 to 30 Minute Timer
A switched timer for intervals of 5 to 30 minutes incremented in 5 minute steps. Simple to build, simple to make, nothing too complicated here. However, you must use the CMOS type 555 timer designated the 7555; a normal 555...
28 LED Clock Timer Circuit
A programmable clock timer circuit that utilizes individual LEDs to indicate hours and minutes. Twelve LEDs can be arranged in a circle to represent the twelve hours of a clock face, while an additional twelve LEDs can be arranged in...
Electronic CD4017 CD4066 the switch circuit diagram
The electronic circuit diagram consists of the CD4017 and CD4066 components configured as a switch circuit.
The CD4017 is a decade counter integrated circuit (IC) that can drive up to ten outputs, sequentially activating them based on clock pulses. It is...
LED Chaser
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...
KIT CAR Lights circuit
This custom mod gives your computer the personality of KITT, the computerized car from Knight Rider TV fame. The project is a light display which imitates the dot in KITT's hood. It looks like the scanning eye of the car's...
40 segment led s meter
Provide your radio with an actual cord signal. First, adjust the HIGH LEVEL potentiometer to the point where all LEDs are illuminated. Then, completely remove the signal and adjust the LOW LEVEL potentiometer until no LEDs are lit. If the...