07/08/2026
Hello everyone! We are continuing our journey of designing a new device together.
And now we’re moving to the next stage.
Time to create the schematic.
This is where we figure out how the device will actually work.
We choose the components, plan the power supply, and solve all the technical questions.
For this, I like to use Eagle CAD. It has a huge parts library, the interface isn’t overwhelming, and it’s great for learning.
So, we add the main chips, design the supporting circuitry, and plan the power. Then we connect everything, double-check for issues, and make sure all parts are easy to find.
This is the technical foundation of our future device. Get this right, and the rest gets much easier!
And then – get ready to design the board!