Oct 3, 20232 min read

PCB Design of 555 Timer circuit

The 555 timer is a chip that can be used to create pulses of various durations, to output a continuous pulse waveform of adjustable pulse width and frequencies, and to toggle between high and low states in response to inputs by wiring the 555 timers with resistors and capacitors in various ways.

Let us now discuss how to design this timer circuit using EasyEDA.

Step1: First, analyze the 555 timer circuit, note down the components required and their specifications then go to EasyEDA tool, you can download the software on your computers or laptops, after downloading install the software, and then login/register using your email-id. Step 2: After completing all the above steps we have to first design the schematic diagram of the 555 timer circuit. For that, you need components that are there in your 555 timer circuit diagram. you can find some of the basic components in EElib, and all other components can be found in the Library. Select the components place them in the schematic and connect them using wire. You can find the schematic of the 555 timer circuit here.

Step 3:

Now we will convert the schematic to layout. A drawing meant to depict the physical arrangement of the wires and the components they connect is called artwork or layout, physical design, or wiring diagram. Circuit diagrams are used for the design (circuit design), construction (such as PCB layout), and maintenance of electrical and electronic equipment. We use routing techniques to rout the PCB. there are many times of PCB design mainly single layer, double layer and multilayer PCB design. For more details you can go through the previous tutorials where you can find all the types of PCB.

In layout blue layer is the bottom layer, Red layer is top most layer and we can write any text using silk layer.

Step 4:

Finally we can design a 3D model of your circuit. For that you have to convert your layout into 3D before that don't forget to attach suitable 3D models for each components.