Uploaded June 2026 | Updated September 2026, 2 weeks ago
A schematic with errors produces a board that doesn't work. A schematic that can't be read produces layout mistakes and bring-up failures. This lecture covers the six practices that prevent both β and all six are active in the Smart USB Thumb Drive project from the first symbol placed.
Topics covered: hierarchical sheet organization, KiCad's three label types and when to use each, net naming conventions, power flags, annotation strategy, and title block discipline. These aren't abstract rules β each one connects directly to something that goes wrong in layout or manufacturing when it's ignored.
π Course: KiCad Advanced β BGA, Signal Integrity, and High-Speed Layout Full enrollment and course details: connect.techexplorations.com/so/smart-usb-thumb-drive-with-kicad
This course takes you through the complete design of a Smart USB Thumb Drive β from schematic to manufactured PCB β using KiCad. You'll work with BGA packaging, USB differential pairs, eMMC length matching, and ideal diode power management on a real, orderable board.
In this video
The schematic design phase of the Smart USB Thumb Drive project, starting with the practices that keep a multi-sheet hierarchical design correct and legible. Covers the six conventions used throughout this project, with specific examples drawn from the actual design.
Timestamps
00:00 Why schematic quality matters β errors travel downstream into layout, BOM, and firmware
00:46 The schematic as the primary source of truth
01:52 Hierarchical sheets β simple, complex, and flat hierarchy in KiCad
03:30 KiCad's three label types β net label, global label, hierarchical label
05:07 Net naming conventions β power rails, USB pairs, eMMC bus, I2C, SWD
06:43 How net names enable automatic net class assignment in layout
07:00 Power flags β what they are, why the ERC needs them, and where they go in this design
08:36 Annotation β reference designator prefixes and the Γ100 sheet-based numbering strategy
09:44 Two annotation warnings β when to freeze refs and why never to re-annotate after layout
10:15 Title blocks, revision fields, and schematic notes as engineering documentation
11:49 Summary β six practices active before the first PCB trace is drawn
Tech Explorations creates practical electronics and PCB design courses for engineers, makers, and educators. More courses at techexplorations.com.
A schematic with errors produces a board that doesn't work. A schematic that can't be read produces layout mistakes and bring-up failures. This lecture covers the six practices that prevent both β and all six are active in the Smart USB Thumb Drive project from the first symbol placed.
Topics covered: hierarchical sheet organization, KiCad's three label types and when to use each, net naming conventions, power flags, annotation strategy, and title block discipline. These aren't abstract rules β each one connects directly to something that goes wrong in layout or manufacturing when it's ignored.
π Course: KiCad Advanced β BGA, Signal Integrity, and High-Speed Layout Full enrollment and course details: connect.techexplorations.com/so/smart-usb-thumb-drive-with-kicad
This course takes you through the complete design of a Smart USB Thumb Drive β from schematic to manufactured PCB β using KiCad. You'll work with BGA packaging, USB differential pairs, eMMC length matching, and ideal diode power management on a real, orderable board.
In this video
The schematic design phase of the Smart USB Thumb Drive project, starting with the practices that keep a multi-sheet hierarchical design correct and legible. Covers the six conventions used throughout this project, with specific examples drawn from the actual design.
Timestamps
00:00 Why schematic quality matters β errors travel downstream into layout, BOM, and firmware
00:46 The schematic as the primary source of truth
01:52 Hierarchical sheets β simple, complex, and flat hierarchy in KiCad
03:30 KiCad's three label types β net label, global label, hierarchical label
05:07 Net naming conventions β power rails, USB pairs, eMMC bus, I2C, SWD
06:43 How net names enable automatic net class assignment in layout
07:00 Power flags β what they are, why the ERC needs them, and where they go in this design
08:36 Annotation β reference designator prefixes and the Γ100 sheet-based numbering strategy
09:44 Two annotation warnings β when to freeze refs and why never to re-annotate after layout
10:15 Title blocks, revision fields, and schematic notes as engineering documentation
11:49 Summary β six practices active before the first PCB trace is drawn
Tech Explorations creates practical electronics and PCB design courses for engineers, makers, and educators. More courses at techexplorations.com.
