Pin Functional Grouping

Thought for 1 sec

Set GND's Pin Type to "Ground"
Set GND's Section to "Ground"
Set GND's Pin Group to "GND"
Set GND's Pin Orientation to "Bottom"
Set GND's Sub-symbol Designator Suffix to "Power"
Set GND's Pin Description to "Ground reference"
Set 3V3's Pin Type to "Power In"
Set 3V3's Section to "Power"
Set 3V3's Pin Group to "3V3"
Set 3V3's Pin Orientation to "Top"
Set 3V3's Sub-symbol Designator Suffix to "Power"
Set 3V3's Pin Description to "3.3 V supply"
Set EN's Pin Type to "Input"
Set EN's Section to "Control"
Set EN's Pin Group to "EN"
Set EN's Pin Orientation to "Left"
Set EN's Sub-symbol Designator Suffix to "Control"
Set EN's Pin Description to "Chip enable input"
Set IO4's Pin Type to "Bi-Directional"
Set IO4's Section to "Analog"
Set IO4's Pin Group to "ADC1"
Set IO4's Pin Orientation to "Left"
Set IO4's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO4's Pin Description to "ADC1 touch GPIO"
Set IO5's Pin Type to "Bi-Directional"
Set IO5's Section to "Analog"
Set IO5's Pin Group to "ADC1"
Set IO5's Pin Orientation to "Left"
Set IO5's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO5's Pin Description to "ADC1 touch GPIO"
Set IO6's Pin Type to "Bi-Directional"
Set IO6's Section to "Analog"
Set IO6's Pin Group to "ADC1"
Set IO6's Pin Orientation to "Left"
Set IO6's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO6's Pin Description to "ADC1 touch GPIO"
Set IO7's Pin Type to "Bi-Directional"
Set IO7's Section to "Analog"
Set IO7's Pin Group to "ADC1"
Set IO7's Pin Orientation to "Left"
Set IO7's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO7's Pin Description to "ADC1 touch GPIO"
Set IO15's Pin Type to "Bi-Directional"
Set IO15's Section to "Analog"
Set IO15's Pin Group to "ADC2"
Set IO15's Pin Orientation to "Left"
Set IO15's Sub-symbol Designator Suffix to "Analog_ADC2"
Set IO15's Pin Description to "ADC2 touch GPIO"
Set IO16's Pin Type to "Bi-Directional"
Set IO16's Section to "Analog"
Set IO16's Pin Group to "ADC2"
Set IO16's Pin Orientation to "Left"
Set IO16's Sub-symbol Designator Suffix to "Analog_ADC2"
Set IO16's Pin Description to "ADC2 touch GPIO"
Set IO17's Pin Type to "Bi-Directional"
Set IO17's Section to "Analog"
Set IO17's Pin Group to "ADC2"
Set IO17's Pin Orientation to "Left"
Set IO17's Sub-symbol Designator Suffix to "Analog_ADC2"
Set IO17's Pin Description to "ADC2 UART GPIO"
Set IO18's Pin Type to "Bi-Directional"
Set IO18's Section to "Analog"
Set IO18's Pin Group to "ADC2"
Set IO18's Pin Orientation to "Left"
Set IO18's Sub-symbol Designator Suffix to "Analog_ADC2"
Set IO18's Pin Description to "ADC2 UART GPIO"
Set IO8's Pin Type to "Bi-Directional"
Set IO8's Section to "Analog"
Set IO8's Pin Group to "ADC1"
Set IO8's Pin Orientation to "Left"
Set IO8's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO8's Pin Description to "ADC1 touch GPIO"
Set IO19's Pin Type to "Bi-Directional"
Set IO19's Section to "USB"
Set IO19's Pin Group to "USB"
Set IO19's Pin Orientation to "Left"
Set IO19's Sub-symbol Designator Suffix to "Communication"
Set IO19's Pin Description to "USB D minus"
Set IO20's Pin Type to "Bi-Directional"
Set IO20's Section to "USB"
Set IO20's Pin Group to "USB"
Set IO20's Pin Orientation to "Left"
Set IO20's Sub-symbol Designator Suffix to "Communication"
Set IO20's Pin Description to "USB D plus"
Set IO3's Pin Type to "Bi-Directional"
Set IO3's Section to "Analog"
Set IO3's Pin Group to "ADC1"
Set IO3's Pin Orientation to "Left"
Set IO3's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO3's Pin Description to "ADC1 touch GPIO"
Set IO46's Pin Type to "Bi-Directional"
Set IO46's Section to "GPIO"
Set IO46's Pin Group to "GPIO"
Set IO46's Pin Orientation to "Left"
Set IO46's Sub-symbol Designator Suffix to "GPIO"
Set IO46's Pin Description to "Strapping GPIO"
Set IO9's Pin Type to "Bi-Directional"
Set IO9's Section to "Communication"
Set IO9's Pin Group to "SPI"
Set IO9's Pin Orientation to "Left"
Set IO9's Sub-symbol Designator Suffix to "SPI"
Set IO9's Pin Description to "SPI GPIO signal"
Set IO10's Pin Type to "Bi-Directional"
Set IO10's Section to "Communication"
Set IO10's Pin Group to "SPI"
Set IO10's Pin Orientation to "Left"
Set IO10's Sub-symbol Designator Suffix to "SPI"
Set IO10's Pin Description to "SPI GPIO signal"
Set IO11's Pin Type to "Bi-Directional"
Set IO11's Section to "Communication"
Set IO11's Pin Group to "SPI"
Set IO11's Pin Orientation to "Left"
Set IO11's Sub-symbol Designator Suffix to "SPI"
Set IO11's Pin Description to "SPI GPIO signal"
Set IO12's Pin Type to "Bi-Directional"
Set IO12's Section to "Communication"
Set IO12's Pin Group to "SPI"
Set IO12's Pin Orientation to "Left"
Set IO12's Sub-symbol Designator Suffix to "SPI"
Set IO12's Pin Description to "SPI clock GPIO"
Set IO13's Pin Type to "Bi-Directional"
Set IO13's Section to "Communication"
Set IO13's Pin Group to "SPI"
Set IO13's Pin Orientation to "Left"
Set IO13's Sub-symbol Designator Suffix to "SPI"
Set IO13's Pin Description to "SPI GPIO signal"
Set IO14's Pin Type to "Bi-Directional"
Set IO14's Section to "Communication"
Set IO14's Pin Group to "SPI"
Set IO14's Pin Orientation to "Left"
Set IO14's Sub-symbol Designator Suffix to "SPI"
Set IO14's Pin Description to "SPI GPIO signal"
Set IO21's Pin Type to "Bi-Directional"
Set IO21's Section to "GPIO"
Set IO21's Pin Group to "GPIO"
Set IO21's Pin Orientation to "Left"
Set IO21's Sub-symbol Designator Suffix to "GPIO"
Set IO21's Pin Description to "General purpose GPIO"
Set IO47's Pin Type to "Bi-Directional"
Set IO47's Section to "Communication"
Set IO47's Pin Group to "SPI_DIFF"
Set IO47's Pin Orientation to "Left"
Set IO47's Sub-symbol Designator Suffix to "SPI"
Set IO47's Pin Description to "Differential SPI clock P"
Set IO48's Pin Type to "Bi-Directional"
Set IO48's Section to "Communication"
Set IO48's Pin Group to "SPI_DIFF"
Set IO48's Pin Orientation to "Left"
Set IO48's Sub-symbol Designator Suffix to "SPI"
Set IO48's Pin Description to "Differential SPI clock N"
Set IO45's Pin Type to "Bi-Directional"
Set IO45's Section to "GPIO"
Set IO45's Pin Group to "GPIO"
Set IO45's Pin Orientation to "Left"
Set IO45's Sub-symbol Designator Suffix to "GPIO"
Set IO45's Pin Description to "Strapping GPIO"
Set IO0's Pin Type to "Bi-Directional"
Set IO0's Section to "GPIO"
Set IO0's Pin Group to "GPIO"
Set IO0's Pin Orientation to "Left"
Set IO0's Sub-symbol Designator Suffix to "GPIO"
Set IO0's Pin Description to "Boot strapping GPIO"
Set IO35's Pin Type to "Bi-Directional"
Set IO35's Section to "Communication"
Set IO35's Pin Group to "SPI"
Set IO35's Pin Orientation to "Left"
Set IO35's Sub-symbol Designator Suffix to "SPI"
Set IO35's Pin Description to "SPI PSRAM GPIO"
Set IO36's Pin Type to "Bi-Directional"
Set IO36's Section to "Communication"
Set IO36's Pin Group to "SPI"
Set IO36's Pin Orientation to "Left"
Set IO36's Sub-symbol Designator Suffix to "SPI"
Set IO36's Pin Description to "SPI clock GPIO"
Set IO37's Pin Type to "Bi-Directional"
Set IO37's Section to "Communication"
Set IO37's Pin Group to "SPI"
Set IO37's Pin Orientation to "Left"
Set IO37's Sub-symbol Designator Suffix to "SPI"
Set IO37's Pin Description to "SPI data strobe"
Set IO38's Pin Type to "Bi-Directional"
Set IO38's Section to "Communication"
Set IO38's Pin Group to "SPI"
Set IO38's Pin Orientation to "Left"
Set IO38's Sub-symbol Designator Suffix to "SPI"
Set IO38's Pin Description to "SPI write protect"
Set IO39's Pin Type to "Bi-Directional"
Set IO39's Section to "Debug"
Set IO39's Pin Group to "JTAG"
Set IO39's Pin Orientation to "Left"
Set IO39's Sub-symbol Designator Suffix to "Debug"
Set IO39's Pin Description to "JTAG MTCK GPIO"
Set IO40's Pin Type to "Bi-Directional"
Set IO40's Section to "Debug"
Set IO40's Pin Group to "JTAG"
Set IO40's Pin Orientation to "Left"
Set IO40's Sub-symbol Designator Suffix to "Debug"
Set IO40's Pin Description to "JTAG MTDO GPIO"
Set IO41's Pin Type to "Bi-Directional"
Set IO41's Section to "Debug"
Set IO41's Pin Group to "JTAG"
Set IO41's Pin Orientation to "Left"
Set IO41's Sub-symbol Designator Suffix to "Debug"
Set IO41's Pin Description to "JTAG MTDI GPIO"
Set IO42's Pin Type to "Bi-Directional"
Set IO42's Section to "Debug"
Set IO42's Pin Group to "JTAG"
Set IO42's Pin Orientation to "Left"
Set IO42's Sub-symbol Designator Suffix to "Debug"
Set IO42's Pin Description to "JTAG MTMS GPIO"
Set RXD0's Pin Type to "Bi-Directional"
Set RXD0's Section to "Communication"
Set RXD0's Pin Group to "UART0"
Set RXD0's Pin Orientation to "Left"
Set RXD0's Sub-symbol Designator Suffix to "Communication"
Set RXD0's Pin Description to "UART0 receive GPIO"
Set TXD0's Pin Type to "Bi-Directional"
Set TXD0's Section to "Communication"
Set TXD0's Pin Group to "UART0"
Set TXD0's Pin Orientation to "Right"
Set TXD0's Sub-symbol Designator Suffix to "Communication"
Set TXD0's Pin Description to "UART0 transmit GPIO"
Set IO2's Pin Type to "Bi-Directional"
Set IO2's Section to "Analog"
Set IO2's Pin Group to "ADC1"
Set IO2's Pin Orientation to "Left"
Set IO2's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO2's Pin Description to "ADC1 touch GPIO"
Set IO1's Pin Type to "Bi-Directional"
Set IO1's Section to "Analog"
Set IO1's Pin Group to "ADC1"
Set IO1's Pin Orientation to "Left"
Set IO1's Sub-symbol Designator Suffix to "Analog_ADC1"
Set IO1's Pin Description to "ADC1 touch GPIO"
Set GND's Pin Type to "Ground"
Set GND's Section to "Ground"
Set GND's Pin Group to "GND"
Set GND's Pin Orientation to "Bottom"
Set GND's Sub-symbol Designator Suffix to "Power"
Set GND's Pin Description to "Ground reference"

Thought

Removed GND::7ce78bc6
Removed GND::2388ae88
Removed GND::8ade24ee
Removed GND::2adf9b55
Removed GND::300bab57
Removed GND::c16c83e3
Removed GND::c2ce428b
Removed GND::6199228c

⚠️ Removed components had their net connections destroyed. Use the @schematic tool (with includeNets) to verify connectivity and re-wire any lost connections.

Thought

flux

Set GND's Pin Type to "Ground"
Set GND's Section to "Ground"
Set GND's Pin Group to "GND"
Set GND's Pin Orientation to "Bottom"
Set GND's Sub-symbol Designator Suffix to "Power"
Set GND's Pin Description to "Exposed ground pad"

Thought for 2 sec

flux

Applied the datasheet-derived grouping rule to the ESP32-S3-WROOM-1-N8R2 terminals: all valid 41 datasheet pins now have Section, Pin Group, Pin Orientation, and Sub-symbol Designator Suffix assignments, and the duplicate out-of-range GND terminals were removed. I also updated the ESP32-S3-WROOM-1-N8R2 Pin Functional Groups project file with the applied rule summary.

Run ERC check

Show mapping table

Check terminal properties

Export metadata

Files

Pins

Symbol

Layout

Preview

IO40

IO12

IO13

IO39

IO19

IO9

IO6

IO48

IO37

IO2

IO16

IO3

IO42

IO47

IO0

IO46

IO35

TXD0

IO20

IO45

IO1

IO18

IO36

IO17

IO8

GND

IO4

IO10

IO7

IO11

3V3

IO14

IO41

IO21

RXD0

GND

IO38

IO15

GND

IO5

Symbol Pin Group Audit — ESP32-S3-WROOM-1-N8R2

Compared the current schematic terminal symbol against the previously documented datasheet pin groups in ESP32-S3-WROOM-1-N8R2 Pin Functional Groups.

Summary

Expected datasheet pins: 41
Current schematic terminal components found: 49
Pins 1–40: present with correct visible terminal names/numbers.
Pin 41: present by number but mislabeled as GND; expected EPAD.
Extra terminals: 8 extra GND terminals with invalid pin numbers 42–49.
Functional grouping metadata is not populated on the terminals: all inspected terminals have Pin Type = Unspecified, and no terminal shows the expected Section, Pin Group, Pin Orientation, or Sub-symbol Designator Suffix properties.

Critical mismatches

Table

Issue	Current symbol	Expected from pin-group doc	Action needed
Pin count	49 terminals	41 pins	Remove or flag extra terminals 42–49
Pin 41 label	`GND`	`EPAD`	Rename pin 41 terminal to `EPAD`
Extra pins	`GND` pins 42–49	None in datasheet	Remove or mark as invalid before publishing
Pin Type properties	All shown as `Unspecified`	Power/Ground/Input/Bi-Directional/etc.	Populate pin types from groups/functions
Section / Pin Group	Missing	Required for grouped symbol organization	Add Section and Pin Group to every pin
Sub-symbol grouping	Missing	Power, Control, USB, UART0, JTAG, Crystal, ADC, SPI, GPIO groups	Add Sub-symbol Designator Suffix or equivalent grouping metadata

Pin presence check

Table

Pin No.	Expected name	Current terminal	Status
1	GND	GND	OK
2	3V3	3V3	OK
3	EN	EN	OK
4	IO4	IO4	OK
5	IO5	IO5	OK
6	IO6	IO6	OK
7	IO7	IO7	OK
8	IO15	IO15	OK
9	IO16	IO16	OK
10	IO17	IO17	OK
11	IO18	IO18	OK
12	IO8	IO8	OK
13	IO19	IO19	OK
14	IO20	IO20	OK
15	IO3	IO3	OK
16	IO46	IO46	OK
17	IO9	IO9	OK
18	IO10	IO10	OK
19	IO11	IO11	OK
20	IO12	IO12	OK
21	IO13	IO13	OK
22	IO14	IO14	OK
23	IO21	IO21	OK
24	IO47	IO47	OK
25	IO48	IO48	OK
26	IO45	IO45	OK
27	IO0	IO0	OK
28	IO35	IO35	OK
29	IO36	IO36	OK
30	IO37	IO37	OK
31	IO38	IO38	OK
32	IO39	IO39	OK
33	IO40	IO40	OK
34	IO41	IO41	OK
35	IO42	IO42	OK
36	RXD0	RXD0	OK
37	TXD0	TXD0	OK
38	IO2	IO2	OK
39	IO1	IO1	OK
40	GND	GND	OK
41	EPAD	GND	Name mismatch
42	—	GND	Extra invalid pin
43	—	GND	Extra invalid pin
44	—	GND	Extra invalid pin
45	—	GND	Extra invalid pin
46	—	GND	Extra invalid pin
47	—	GND	Extra invalid pin
48	—	GND	Extra invalid pin
49	—	GND	Extra invalid pin

Expected group mapping to apply

Table

Group	Pins
Power / 3V3	2: 3V3
Ground	1: GND, 40: GND, 41: EPAD
Control / Enable	3: EN
Boot / Strapping	27: IO0
USB	13: IO19, 14: IO20
UART0	36: RXD0, 37: TXD0
JTAG	32: IO39, 33: IO40, 34: IO41, 35: IO42
32 kHz Crystal	8: IO15, 9: IO16
ADC1 / Touch GPIO	4: IO4, 5: IO5, 6: IO6, 7: IO7, 12: IO8, 15: IO3, 38: IO2, 39: IO1
ADC2 / Touch / UART1 GPIO	10: IO17, 11: IO18
Flash / PSRAM / SPI-related GPIO	17: IO9, 18: IO10, 19: IO11, 20: IO12, 21: IO13, 22: IO14, 24: IO47, 25: IO48, 28: IO35, 29: IO36, 30: IO37, 31: IO38
General GPIO / Other	16: IO46, 23: IO21, 26: IO45

Recommended cleanup

Rename the pin-41 terminal from GND to EPAD.
Remove the invalid extra GND terminals with pin numbers 42–49, unless these were intentionally added for a non-datasheet package variant.
Populate each terminal’s Pin Type, Section, Pin Group, Pin Orientation, and Sub-symbol Designator Suffix according to the expected group mapping.
Re-run a schematic/part audit after cleanup and confirm the terminal count is exactly 41.

Summary
Critical mismatches
Pin presence check
Expected group mapping to apply
Recommended cleanup