ESP32-S2 / ESP32-S2FH2 / ESP32-S2FH4 (-)
| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| 1 | 3V3 | Power | Power Supply Input (3V3 — 3.3V VDD3P3 (3.0V ~ 3.6V)) |
| 2 | 3V3 | Power | Power Supply Input (3V3 — 3.3V VDD3P3 (3.0V ~ 3.6V)) |
| 3 | RST | I/O | Multiplexed I/O & Peripheral Pin RST (General) |
| 4 | GPIO4 | I/O | Multiplexed I/O & Peripheral Pin GPIO4 (General) |
| 5 | GPIO5 | I/O | Multiplexed I/O & Peripheral Pin GPIO5 (General) |
| 6 | GPIO6 | I/O | Multiplexed I/O & Peripheral Pin GPIO6 (General) |
| 7 | GPIO7 | I/O | Multiplexed I/O & Peripheral Pin GPIO7 (General) |
| 8 | GPIO15 | I/O | Multiplexed I/O & Peripheral Pin GPIO15 (General) |
| 9 | GPIO16 | I/O | Multiplexed I/O & Peripheral Pin GPIO16 (General) |
| 10 | GPIO17 | I/O | Multiplexed I/O & Peripheral Pin GPIO17 (General) |
| 11 | GPIO18 | I/O | Multiplexed I/O & Peripheral Pin GPIO18 (General) |
| 12 | GPIO8 | I/O | Multiplexed I/O & Peripheral Pin GPIO8 (General) |
| 13 | GPIO3 | I/O | Multiplexed I/O & Peripheral Pin GPIO3 (General) |
| 14 | GPIO46 | I/O | Multiplexed I/O & Peripheral Pin GPIO46 (General) |
| 15 | GPIO9 | I/O | Multiplexed I/O & Peripheral Pin GPIO9 (General) |
| 16 | GPIO10 | I/O | Multiplexed I/O & Peripheral Pin GPIO10 (General) |
| 17 | GPIO11 | I/O | Multiplexed I/O & Peripheral Pin GPIO11 (General) |
| 18 | GPIO12 | I/O | Multiplexed I/O & Peripheral Pin GPIO12 (General) |
| 19 | 20 | I/O | Multiplexed I/O & Peripheral Pin 20 (General) |
| 20 | 19 | I/O | Multiplexed I/O & Peripheral Pin 19 (General) |
| 21 | 18 | I/O | Multiplexed I/O & Peripheral Pin 18 (General) |
| 22 | GND | GND | Ground Reference Pin (GND) |
| 23 | GND | GND | Ground Reference Pin (GND) |
| 24 | GND | GND | Ground Reference Pin (GND) |
| 25 | GPIO19 | I/O | Multiplexed I/O & Peripheral Pin GPIO19 (General) |
| 26 | GPIO20 | I/O | Multiplexed I/O & Peripheral Pin GPIO20 (General) |
| 27 | GPIO21 | I/O | Multiplexed I/O & Peripheral Pin GPIO21 (General) |
| 28 | GPIO33 | I/O | Multiplexed I/O & Peripheral Pin GPIO33 (General) |
| 29 | GPIO34 | I/O | Multiplexed I/O & Peripheral Pin GPIO34 (General) |
| 30 | GPIO45 | I/O | Multiplexed I/O & Peripheral Pin GPIO45 (General) |
| 31 | GPIO0 | I/O | Multiplexed I/O & Peripheral Pin GPIO0 (General) |
| 32 | GPIO35 | I/O | Multiplexed I/O & Peripheral Pin GPIO35 (General) |
| 33 | 17 | I/O | Multiplexed I/O & Peripheral Pin 17 (General) |
| 34 | 16 | I/O | Multiplexed I/O & Peripheral Pin 16 (General) |
| 35 | 13 | I/O | Multiplexed I/O & Peripheral Pin 13 (General) |
| 36 | 12 | I/O | Multiplexed I/O & Peripheral Pin 12 (General) |
| 37 | 11 | I/O | Multiplexed I/O & Peripheral Pin 11 (General) |
| 38 | 10 | I/O | Multiplexed I/O & Peripheral Pin 10 (General) |
| 39 | 9 | I/O | Multiplexed I/O & Peripheral Pin 9 (General) |
| 40 | 8 | I/O | Multiplexed I/O & Peripheral Pin 8 (General) |
| 41 | 7 | I/O | Multiplexed I/O & Peripheral Pin 7 (General) |
| 42 | 6 | I/O | Multiplexed I/O & Peripheral Pin 6 (General) |
| 43 | TX | I/O | Multiplexed I/O & Peripheral Pin TX (General) |
| 44 | G | I/O | Multiplexed I/O & Peripheral Pin G (General) |
ESP32-S2 / ESP32-S2FH2 / ESP32-S2FH4 (-)
ESP32-S2 / ESP32-S2FH2 / ESP32-S2FH4 (QFN-56-EP(7x7))
ESP32-S2 / ESP32-S2FH2 / ESP32-S2FH4 (QFN-56-EP(7x7))
ESP32-S2 / ESP32-S2FH2 / ESP32-S2FH4 (QFN-56-EP(7x7))
ESP32-S2 / ESP32-S2FH2 / ESP32-S2FH4 (QFN-56-EP(7x7))
ESP32-S2 / ESP32-S2FH2 / ESP32-S2FH4 (VFQFN-56-EP)
| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| C1, C2 BOM | 22µF (or 10µF) X5R + 100nF X7R 0805 + 0402 | 3V3 supply decoupling for ~500mA Wi-Fi TX bursts — place closest to 3V3 pin; supply must deliver >= 600mA. |
| R_en + C_en BOM | R = 10kΩ to 3V3 + C = 1µF to GND 0402 / 0603 | Power-On Reset RC delay at EN (CHIP_PU) — 1µF capacitor at EN is REQUIRED for reliable cold boot. |
| R_boot + SW1 BOM | 10kΩ Pull-up + BOOT button 0402 + SMD | Firmware boot-mode strap (IO0 on ESP32/S2/S3, IO9 on ESP32-C3) — on C3 pull IO8 high via 10kΩ for UART/USB download. |
| D_esd BOM | USBLC6-2SC6 / LESD5D5.0CT1G SOT-23-6 / SOD-523 | ESD surge protection on USB D+/D- — place right next to USB Type-C connector before IO18/IO19/IO20. |
| ESP32-S3-MINI-1-N8 / 1U-N4R2 Espressif | 100% Drop-in | Same 15.4×15.4mm 65-pad footprint as ESP32-S2-MINI-2 — verify USB GPIO 19/20 pin mapping. |
Manufactured by ESPRESSIF, the ESP32-S2-DEVKITC-1 is housed in a COMM-TH_44P-L62.7-W25.4-P2.54-LS22.86-TL_ESP32-S2-DEVKITC-1 package with 44 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 5 V to 3.3 V. Key pins include: 1 (3V3: Power Supply Input (3V3 — 3.3V VDD3P3 (3.0V ~ 3.6V))), 2 (3V3: Power Supply Input (3V3 — 3.3V VDD3P3 (3.0V ~ 3.6V))), 3 (RST: Multiplexed I/O & Peripheral Pin RST (General)), 4 (GPIO4: Multiplexed I/O & Peripheral Pin GPIO4 (General)), 5 (GPIO5: Multiplexed I/O & Peripheral Pin GPIO5 (General)), 6 (GPIO6: Multiplexed I/O & Peripheral Pin GPIO6 (General)).
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), ESP32-S2-DEVKITC-1 (COMM-TH_44P-L62.7-W25.4-P2.54-LS22.86-TL_ESP32-S2-DEVKITC-1) has a nominal body envelope of 25.40 × 62.70 mm, pitch e = 0.50 mm, and 44 copper pads.
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for ESP32-S2-DEVKITC-1 (ESPRESSIF, COMM-TH_44P-L62.7-W25.4-P2.54-LS22.86-TL_ESP32-S2-DEVKITC-1) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | 3V3 | Power_In | Primary positive power supply input (3V3) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V). |
| 2 | 3V3 | Power_In | Primary positive power supply input (3V3) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V). |
| 3 | RST | Digital_IO | Signal terminal RST (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: RST. Supported peripheral buses: General. |
| 4 | GPIO4 | Digital_IO | Signal terminal GPIO4 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO4. Supported peripheral buses: General. |
| 5 | GPIO5 | Digital_IO | Signal terminal GPIO5 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO5. Supported peripheral buses: General. |
| 6 | GPIO6 | Digital_IO | Signal terminal GPIO6 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO6. Supported peripheral buses: General. |
| 7 | GPIO7 | Digital_IO | Signal terminal GPIO7 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO7. Supported peripheral buses: General. |
| 8 | GPIO15 | Digital_IO | Signal terminal GPIO15 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO15. Supported peripheral buses: General. |
| 9 | GPIO16 | Digital_IO | Signal terminal GPIO16 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO16. Supported peripheral buses: General. |
| 10 | GPIO17 | Digital_IO | Signal terminal GPIO17 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO17. Supported peripheral buses: General. |
| 11 | GPIO18 | Digital_IO | Signal terminal GPIO18 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO18. Supported peripheral buses: General. |
| 12 | GPIO8 | Digital_IO | Signal terminal GPIO8 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO8. Supported peripheral buses: General. |
| 13 | GPIO3 | Digital_IO | Signal terminal GPIO3 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO3. Supported peripheral buses: General. |
| 14 | GPIO46 | Digital_IO | Signal terminal GPIO46 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO46. Supported peripheral buses: General. |
| 15 | GPIO9 | Digital_IO | Signal terminal GPIO9 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO9. Supported peripheral buses: General. |
| 16 | GPIO10 | Digital_IO | Signal terminal GPIO10 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO10. Supported peripheral buses: General. |
| 17 | GPIO11 | Digital_IO | Signal terminal GPIO11 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO11. Supported peripheral buses: General. |
| 18 | GPIO12 | Digital_IO | Signal terminal GPIO12 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO12. Supported peripheral buses: General. |
| 19 | 20 | Digital_IO | Signal terminal 20 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 20. Supported peripheral buses: General. |
| 20 | 19 | Digital_IO | Signal terminal 19 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 19. Supported peripheral buses: General. |
| 21 | 18 | Digital_IO | Signal terminal 18 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 18. Supported peripheral buses: General. |
| 22 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 23 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 24 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 25 | GPIO19 | Digital_IO | Signal terminal GPIO19 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO19. Supported peripheral buses: General. |
| 26 | GPIO20 | Digital_IO | Signal terminal GPIO20 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO20. Supported peripheral buses: General. |
| 27 | GPIO21 | Digital_IO | Signal terminal GPIO21 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO21. Supported peripheral buses: General. |
| 28 | GPIO33 | Digital_IO | Signal terminal GPIO33 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO33. Supported peripheral buses: General. |
| 29 | GPIO34 | Digital_IO | Signal terminal GPIO34 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO34. Supported peripheral buses: General. |
| 30 | GPIO45 | Digital_IO | Signal terminal GPIO45 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO45. Supported peripheral buses: General. |
| 31 | GPIO0 | Digital_IO | Signal terminal GPIO0 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO0. Supported peripheral buses: General. |
| 32 | GPIO35 | Digital_IO | Signal terminal GPIO35 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO35. Supported peripheral buses: General. |
| 33 | 17 | Digital_IO | Signal terminal 17 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 17. Supported peripheral buses: General. |
| 34 | 16 | Digital_IO | Signal terminal 16 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 16. Supported peripheral buses: General. |
| 35 | 13 | Digital_IO | Signal terminal 13 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 13. Supported peripheral buses: General. |
| 36 | 12 | Digital_IO | Signal terminal 12 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 12. Supported peripheral buses: General. |
| 37 | 11 | Digital_IO | Signal terminal 11 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 11. Supported peripheral buses: General. |
| 38 | 10 | Digital_IO | Signal terminal 10 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 10. Supported peripheral buses: General. |
| 39 | 9 | Digital_IO | Signal terminal 9 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 9. Supported peripheral buses: General. |
| 40 | 8 | Digital_IO | Signal terminal 8 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 8. Supported peripheral buses: General. |
| 41 | 7 | Digital_IO | Signal terminal 7 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 7. Supported peripheral buses: General. |
| 42 | 6 | Digital_IO | Signal terminal 6 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: 6. Supported peripheral buses: General. |
| 43 | TX | Digital_IO | Signal terminal TX (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: TX. Supported peripheral buses: General. |
| 44 | G | Digital_IO | Signal terminal G (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: G. Supported peripheral buses: General. |