Component Pin Classification

0:55

Searching for project details.

Espressif encountered an error.

I checked the Espressif guidance for this module’s PCB antenna.

Keep-out zone size

The datasheet gives the antenna area as 15.4 mm x 4.5 mm, and Espressif’s hardware design guidelines say to keep at least 15 mm clearance in all directions around that antenna area if you cannot place the antenna outside the base board.

Calculated rectangular keep-out

Antenna area: 15.4 mm x 4.5 mm
Clearance margin: 15 mm on each side

So the full no-copper / no-routing / no-components rectangle is:

Width: 15.4 + 15 + 15 = 45.4 mm
Depth: 4.5 + 15 + 15 = 34.5 mm

Result

Minimum rectangular keep-out zone: 45.4 mm x 34.5 mm
Area: 1566.3 mm²

Practical placement note

Espressif’s preferred placement is still to let the PCB antenna extend outside the base board with the antenna feed point near the board edge. If that is not possible, use the 45.4 mm x 34.5 mm clearance region above and avoid copper, traces, vias, and components in that zone. For Flux placement work, the overhang / keepout should be derived from the datasheet and passed as an edge-placement constraint , and datasheet-derived mechanical values should be treated as the source of truth

If you want, I can next turn this into an exact Flux placement rule for the module.

Use 5mm keepout

Pull exact dimensions

Save placement note

a day

IO10

IO21

IO19

IO18

IO41

IO37

IO34

IO7

IO11

RXD0

IO8

IO17

IO5

IO42

IO6

IO26

IO15

IO12

IO35

IO46

IO2

IO9

IO39

IO45

IO1

IO20

IO36

IO40

IO13

IO33

IO4

IO0

IO38

IO14

IO16

TXD0

IO3

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