FeatherS3 ESP32-S3 with u.FL by Unexpected Maker

Feather-format ESP32-S3 board (dual-core 240 MHz) with 16 MB flash, 8 MB PSRAM, USB-C, and a u.FL connector for an external antenna instead of a PCB trace antenna. Two 700 mA 3.3V LDOs, LiPo charging, 2× STEMMA connectors, 21 GPIO.
Pinout
- VBAT1
Battery input pin from FeatherS3 KiCad symbol pin 1.
Type · Power - EN2
Enable input pin from FeatherS3 KiCad symbol pin 2.
Type · Control - 5V3
5 V power input pin from FeatherS3 KiCad symbol pin 3.
Type · PowerVoltage · 5V - IO114
ESP32-S3 GPIO 11 bidirectional I/O from FeatherS3 KiCad symbol pin 4.
Type · GPIO - IO105
ESP32-S3 GPIO 10 bidirectional I/O from FeatherS3 KiCad symbol pin 5.
Type · GPIO - IO76
ESP32-S3 GPIO 7 bidirectional I/O from FeatherS3 KiCad symbol pin 6.
Type · GPIO - IO37
ESP32-S3 GPIO 3 bidirectional I/O from FeatherS3 KiCad symbol pin 7.
Type · GPIO - IO18
ESP32-S3 GPIO 1 bidirectional I/O from FeatherS3 KiCad symbol pin 8.
Type · GPIO - IO389
ESP32-S3 GPIO 38 bidirectional I/O from FeatherS3 KiCad symbol pin 9.
Type · GPIO - IO3310
ESP32-S3 GPIO 33 bidirectional I/O from FeatherS3 KiCad symbol pin 10.
Type · GPIO - IO911
ESP32-S3 GPIO 9 bidirectional I/O from FeatherS3 KiCad symbol pin 11.
Type · GPIO - IO812
ESP32-S3 GPIO 8 bidirectional I/O from FeatherS3 KiCad symbol pin 12.
Type · GPIO - LDO2_OUT13
LDO2 output power pin from FeatherS3 KiCad symbol pin 13.
Type · Power - TX14
UART TX bidirectional board pin from FeatherS3 KiCad symbol pin 14.
Type · UART - RX15
UART RX bidirectional board pin from FeatherS3 KiCad symbol pin 15.
Type · UART - IO3716
ESP32-S3 GPIO 37 bidirectional I/O from FeatherS3 KiCad symbol pin 16.
Type · GPIO - IO3517
ESP32-S3 GPIO 35 bidirectional I/O from FeatherS3 KiCad symbol pin 17.
Type · GPIO - IO3618
ESP32-S3 GPIO 36 bidirectional I/O from FeatherS3 KiCad symbol pin 18.
Type · GPIO - IO519
ESP32-S3 GPIO 5 bidirectional I/O from FeatherS3 KiCad symbol pin 19.
Type · GPIO - IO620
ESP32-S3 GPIO 6 bidirectional I/O from FeatherS3 KiCad symbol pin 20.
Type · GPIO - IO1221
ESP32-S3 GPIO 12 bidirectional I/O from FeatherS3 KiCad symbol pin 21.
Type · GPIO - IO1422
ESP32-S3 GPIO 14 bidirectional I/O from FeatherS3 KiCad symbol pin 22.
Type · GPIO - IO1823
ESP32-S3 GPIO 18 bidirectional I/O from FeatherS3 KiCad symbol pin 23.
Type · GPIO - IO1724
ESP32-S3 GPIO 17 bidirectional I/O from FeatherS3 KiCad symbol pin 24.
Type · GPIO - GND25
Ground pin from FeatherS3 KiCad symbol pin 25.
Type · GroundVoltage · 0V - IO026
ESP32-S3 GPIO 0 bidirectional I/O from FeatherS3 KiCad symbol pin 26.
Type · GPIO - 3V327
3.3 V board power pin from FeatherS3 KiCad symbol pin 27.
Type · PowerVoltage · 3.3V - RST28
Reset input pin from FeatherS3 KiCad symbol pin 28.
Type · Control
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VBAT | 1 | Power | Battery input pin from FeatherS3 KiCad symbol pin 1. | |
| EN | 2 | Control | Enable input pin from FeatherS3 KiCad symbol pin 2. | |
| 5V | 3 | Power | 5 V power input pin from FeatherS3 KiCad symbol pin 3. | 5V |
| IO11 | 4 | GPIO | ESP32-S3 GPIO 11 bidirectional I/O from FeatherS3 KiCad symbol pin 4. | |
| IO10 | 5 | GPIO | ESP32-S3 GPIO 10 bidirectional I/O from FeatherS3 KiCad symbol pin 5. | |
| IO7 | 6 | GPIO | ESP32-S3 GPIO 7 bidirectional I/O from FeatherS3 KiCad symbol pin 6. | |
| IO3 | 7 | GPIO | ESP32-S3 GPIO 3 bidirectional I/O from FeatherS3 KiCad symbol pin 7. | |
| IO1 | 8 | GPIO | ESP32-S3 GPIO 1 bidirectional I/O from FeatherS3 KiCad symbol pin 8. | |
| IO38 | 9 | GPIO | ESP32-S3 GPIO 38 bidirectional I/O from FeatherS3 KiCad symbol pin 9. | |
| IO33 | 10 | GPIO | ESP32-S3 GPIO 33 bidirectional I/O from FeatherS3 KiCad symbol pin 10. | |
| IO9 | 11 | GPIO | ESP32-S3 GPIO 9 bidirectional I/O from FeatherS3 KiCad symbol pin 11. | |
| IO8 | 12 | GPIO | ESP32-S3 GPIO 8 bidirectional I/O from FeatherS3 KiCad symbol pin 12. | |
| LDO2_OUT | 13 | Power | LDO2 output power pin from FeatherS3 KiCad symbol pin 13. | |
| TX | 14 | UART | UART TX bidirectional board pin from FeatherS3 KiCad symbol pin 14. | |
| RX | 15 | UART | UART RX bidirectional board pin from FeatherS3 KiCad symbol pin 15. | |
| IO37 | 16 | GPIO | ESP32-S3 GPIO 37 bidirectional I/O from FeatherS3 KiCad symbol pin 16. | |
| IO35 | 17 | GPIO | ESP32-S3 GPIO 35 bidirectional I/O from FeatherS3 KiCad symbol pin 17. | |
| IO36 | 18 | GPIO | ESP32-S3 GPIO 36 bidirectional I/O from FeatherS3 KiCad symbol pin 18. | |
| IO5 | 19 | GPIO | ESP32-S3 GPIO 5 bidirectional I/O from FeatherS3 KiCad symbol pin 19. | |
| IO6 | 20 | GPIO | ESP32-S3 GPIO 6 bidirectional I/O from FeatherS3 KiCad symbol pin 20. | |
| IO12 | 21 | GPIO | ESP32-S3 GPIO 12 bidirectional I/O from FeatherS3 KiCad symbol pin 21. | |
| IO14 | 22 | GPIO | ESP32-S3 GPIO 14 bidirectional I/O from FeatherS3 KiCad symbol pin 22. | |
| IO18 | 23 | GPIO | ESP32-S3 GPIO 18 bidirectional I/O from FeatherS3 KiCad symbol pin 23. | |
| IO17 | 24 | GPIO | ESP32-S3 GPIO 17 bidirectional I/O from FeatherS3 KiCad symbol pin 24. | |
| GND | 25 | Ground | Ground pin from FeatherS3 KiCad symbol pin 25. | 0V |
| IO0 | 26 | GPIO | ESP32-S3 GPIO 0 bidirectional I/O from FeatherS3 KiCad symbol pin 26. | |
| 3V3 | 27 | Power | 3.3 V board power pin from FeatherS3 KiCad symbol pin 27. | 3.3V |
| RST | 28 | Control | Reset input pin from FeatherS3 KiCad symbol pin 28. |
Pin details
28 connections- VBAT1
Battery input pin from FeatherS3 KiCad symbol pin 1.
Power - EN2
Enable input pin from FeatherS3 KiCad symbol pin 2.
Control - 5V3
5 V power input pin from FeatherS3 KiCad symbol pin 3.
PowerVoltage · 5V - IO114
ESP32-S3 GPIO 11 bidirectional I/O from FeatherS3 KiCad symbol pin 4.
GPIO - IO105
ESP32-S3 GPIO 10 bidirectional I/O from FeatherS3 KiCad symbol pin 5.
GPIO - IO76
ESP32-S3 GPIO 7 bidirectional I/O from FeatherS3 KiCad symbol pin 6.
GPIO - IO37
ESP32-S3 GPIO 3 bidirectional I/O from FeatherS3 KiCad symbol pin 7.
GPIO - IO18
ESP32-S3 GPIO 1 bidirectional I/O from FeatherS3 KiCad symbol pin 8.
GPIO - IO389
ESP32-S3 GPIO 38 bidirectional I/O from FeatherS3 KiCad symbol pin 9.
GPIO - IO3310
ESP32-S3 GPIO 33 bidirectional I/O from FeatherS3 KiCad symbol pin 10.
GPIO - IO911
ESP32-S3 GPIO 9 bidirectional I/O from FeatherS3 KiCad symbol pin 11.
GPIO - IO812
ESP32-S3 GPIO 8 bidirectional I/O from FeatherS3 KiCad symbol pin 12.
GPIO - LDO2_OUT13
LDO2 output power pin from FeatherS3 KiCad symbol pin 13.
Power - TX14
UART TX bidirectional board pin from FeatherS3 KiCad symbol pin 14.
UART - RX15
UART RX bidirectional board pin from FeatherS3 KiCad symbol pin 15.
UART - IO3716
ESP32-S3 GPIO 37 bidirectional I/O from FeatherS3 KiCad symbol pin 16.
GPIO - IO3517
ESP32-S3 GPIO 35 bidirectional I/O from FeatherS3 KiCad symbol pin 17.
GPIO - IO3618
ESP32-S3 GPIO 36 bidirectional I/O from FeatherS3 KiCad symbol pin 18.
GPIO - IO519
ESP32-S3 GPIO 5 bidirectional I/O from FeatherS3 KiCad symbol pin 19.
GPIO - IO620
ESP32-S3 GPIO 6 bidirectional I/O from FeatherS3 KiCad symbol pin 20.
GPIO - IO1221
ESP32-S3 GPIO 12 bidirectional I/O from FeatherS3 KiCad symbol pin 21.
GPIO - IO1422
ESP32-S3 GPIO 14 bidirectional I/O from FeatherS3 KiCad symbol pin 22.
GPIO - IO1823
ESP32-S3 GPIO 18 bidirectional I/O from FeatherS3 KiCad symbol pin 23.
GPIO - IO1724
ESP32-S3 GPIO 17 bidirectional I/O from FeatherS3 KiCad symbol pin 24.
GPIO - GND25
Ground pin from FeatherS3 KiCad symbol pin 25.
GroundVoltage · 0V - IO026
ESP32-S3 GPIO 0 bidirectional I/O from FeatherS3 KiCad symbol pin 26.
GPIO - 3V327
3.3 V board power pin from FeatherS3 KiCad symbol pin 27.
PowerVoltage · 3.3V - RST28
Reset input pin from FeatherS3 KiCad symbol pin 28.
Control
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