Schematic diagram

Projects General Guidance
1

Hi, can I ask where I can create a schematic diagram for free for my capstone project?
I will be using the following components:

  • ESP32 microcontroller
  • DHT22
  • ESP32-CAM
  • TCT40-16R/T ultrasonic transducer sensor
  • 365nm UV LED tube
  • PWM vibration module

Thank you.

2

for one.

3

Search "free online schematic drawing arduino"

  1. SchemaLite | The Fastest Way to Draw Electronic Schematics Online
4

Thank you

5

Use EasyEDA, standard edition.
It already has many of the modules you need.

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6

I would also recommand EasyEDA, but Wokwi is another good solution for simple schematic

7

Not only the cad systems - look at how schematics are laid out , where to put power connections , signal flow etc .

Nothing wrong with paper and a ruler .

Google how to … lots out there .

Example

8

Normal design practice is to find a problem then pick the components you need to build it. It appears you have the parts and are looking for a project?

I found this on the internet: A capstone project is a final assignment that allows students to demonstrate their knowledge and skills by applying what they've learned throughout their academic program to a real-world problem or comprehensive research project. It typically involves selecting a topic, conducting research, and presenting findings, serving as a bridge between academic learning and professional practice. From what you presented you have a long way to go.

I recommend the KiCad system, it is well supported, and surprisingly good. It is free and will take you from schematic capture through the Gerber files for printed circuit boards.