Espressif · current
ESP32-S3-DevKitC-1
Entry-level Espressif development board with ESP32-S3-WROOM-1/1U/2 module, dual USB ports and breadboard-friendly headers.
Evidence: Inferred 2 sources · latest retrieved 2026-10-18 · audited
Key specs
- Logic level
- 3.3 V
- CPU clock max
- 240 MHz Evidence: Documented
- Flash
- 32 MB Evidence: Documented
- SRAM
- 512 KB Evidence: Documented
- PSRAM
- 16 MB Evidence: Documented
- Operating voltage
- 3.3 V Evidence: Documented
Works with and related
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Alternative to
ESP32-DevKitC
Evidence: Inferred
Both are Espressif entry-level dev boards; alternative reading is our inference.
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Works with
ESP-IDF
Evidence: Documented
Guide 'Software Setup' sends users to ESP-IDF Get Started (link target docs.espressif.com/projects/esp-idf/en/latest/esp32s3/get-started) to set up the environment and flash an example. Not claimed as a requirement.
All specifications 11
| Spec | Value | Evidence |
|---|---|---|
| Module options | ESP32-S3-WROOM-1 / WROOM-1U / WROOM-2 | Evidence: Documented |
| Flash | 32 MB N32R16V variant on ESP32-S3-WROOM-2 (guide ordering table); the N8R8 variants have 8 MB | Evidence: Documented |
| PSRAM | 16 MB N32R16V variant on ESP32-S3-WROOM-2 (guide ordering table); the N8R8 variants have 8 MB | Evidence: Documented |
| USB uart bridge max rate | 3 Mbps | Evidence: Documented |
| USB ports | 2 USB-to-UART (Micro-B) + ESP32-S3 native USB OTG (USB 1.1 full-speed) | Evidence: Documented |
| Rgb led GPIO | 38 GPIO number v1.1; initial version uses GPIO48 | Evidence: Documented |
| Header pins per side | 22 J1 and J3 | Evidence: Documented |
| Power regulator | 5 V to 3.3 V LDO | Evidence: Documented |
| CPU clock max | 240 MHz ESP32-S3 chip dual-core LX7, up to 240 MHz | Evidence: Documented |
| SRAM | 512 KB Chip-level 512 KB on-chip SRAM (384 KB ROM); excludes PSRAM | Evidence: Documented |
| Operating voltage | 3.3 V Chip recommended supply 3.0-3.6 V, typ 3.3 V (Table 5-2); chip-level, not a board GPIO-level statement | Evidence: Documented |
Caveats
Based on the v1.1 user guide; v1.0 (initial) vs v1.1: guide states the 'main difference' is the RGB LED GPIO (48 vs 38) - audit softened earlier wording 'differs only'. logic_level_v=3.3: the board guide does not state the I/O level (it shows an on-board 5 V to 3.3 V LDO and a 3V3 rail); the ESP32-S3 chip datasheet gives DC characteristics at 3.3 V and the Auditor read the ESP32-S3-WROOM-1 module datasheet (3.0-3.6 V supply, input thresholds referenced to VDD). No separate claim records the logic level. Power: guide lists three mutually exclusive options (USB ports - one or both, 5V pin, 3V3 pin). EOL marks apply to N8/N8R2 variants (see claim 004). No price (v1). (2026-10-18) cpu_clock_max, sram, operating_voltage now from ESP32-S3 datasheet v2.2 (chip-level); chip-level values. Flash/PSRAM (2026-10-18): flash 32 MB and PSRAM 16 MB are the N32R16V variant (ESP32-S3-WROOM-2) named in the guide, not the board in general. The ESP32-S3-WROOM-1 datasheet covers 4/8/16 MB flash and 2 MB Quad / 8 MB Octal / 16 MB Octal PSRAM options (per Auditor review); the WROOM-2 datasheet (the module on the N32R16V variant) was not read, so the 32 MB / 16 MB figures rest on the guide's ordering table only.
Claims 4
ESP32-S3-DevKitC-1 is an entry-level development board with a general-purpose Wi-Fi + Bluetooth Low Energy MCU module. Evidence: Documented
Source: src-esp32-s3-devkitc-1-guide
The board has two USB ports: a Micro-USB USB-to-UART port and an ESP32-S3 USB OTG port compliant with USB 1.1; either can supply power. Evidence: Documented
Source: src-esp32-s3-devkitc-1-guide
On boards with Octal SPI flash/PSRAM modules and WROOM-2 modules, GPIO35, 36 and 37 are used internally and not available externally. Evidence: Documented
Source: src-esp32-s3-devkitc-1-guide
The board is available in variants (N32R16V, N8R8, 1U-N8R8); several N8/N8R2 variants are marked EOL. Evidence: Documented
Source: src-esp32-s3-devkitc-1-guide
Sources 2
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Espressif · manufacturer_docs
Locator: Description of Components; Ordering Information table; Header Block; Hardware Revision Details · Retrieved 2026-10-16
The ESP32-S3-DevKitC-1 is an entry-level development board equipped with ESP32-S3-WROOM-1, ESP32-S3-WROOM-1U, or ESP32-S3-WROOM-2
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Espressif Systems · datasheet
https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf
Locator: Features (CPU and Memory); Section 2.x Memory (512 KB on-chip SRAM); Table 5-2 Recommended Operating Conditions · Retrieved 2026-10-18
Clock speed: up to 240 MHz; SRAM: 512 KB; VDDA, VDD3P3 Recommended input voltage 3.0 3.3 3.6 V