Introduction: 555 Timer: Flashing LED
This is an awesome and easy build to make!
Step 1: The Circuit
Ok so the 555 timer is a small 8-pin chip used in a lot of electronics. Here is the layout of the pins
Pin 1- Ground (aka negative or neutral)
Pin 2- Trigger
Pin 3- Output
Pin 4- Reset
Pin 5- Control voltage
Pin 6- Threshold
Pin 7- Discharge
Pin 8- Vcc (aka positive or "hot")
The Schematic is as shown above we will be using potentiometers as resistors but resistors will work just the same.
R1- 1K resistor or "Pot"
R2- 470k resistor or a 500k "Pot"
R3- 1K resistor or "Pot"
C1- 1μF Capacitor (The exact one I am using is 1μF 50volt)
D1- (the LED) I am using a blue one but any color works
555 Timer (I am also using a 8 pin chip IC socket for easy access to replace)
Circuit board (PCB)
Jumper Wires (if you are planning on assembling it first on a breadboard.
9 volt battery
9 volt battery connector
Step 2: Tools
Step 3: Assembling It on the Breadboard
Pin 1 goes to ground
Pin 2 to 6
Pin 2 to positive side of the "Cap"
Negative side of the Capacitor goes to ground
Pin 3 goes to one side of the 1kΩ Resistor or "Pot"
The other side of the 1kΩ Resistor or "Pot" goes to the positive side of the LED
The negative side of the LED goes to ground
Pin 4 goes to Pin 8
Pin 8 goes to positive
Pin 7 goes to the 1kΩ Resistor or "Pot"
The other side of the 1kΩ Resistor or "Pot" goes to Power or Positive
Pin 7 also goes to another Resistor/"Pot"
It also goes to the 500K Resistor or "Pot" and the other side of the Res/Pot goes to the + side of the "Cap"
Step 4: Your Done!
Congratulations! Leave a like and comment with anything to make it better! Feel free to ask questions in the comment section! Don't forget to vote!
We have a be nice policy.
Please be positive and constructive.