# ESP32-S3-DevKitC-1 > Espressif official ESP32-S3 development board with ESP32-S3-WROOM-1 module, dual-core 240 MHz LX7, up to 45 GPIO, dual USB ports, and available in three memory variants: 8MB/2MB PSRAM, 8MB/8MB PSRAM, and 32MB/16MB PSRAM (WROOM-2). ## Quick Facts - **Brand:** Espressif - **Board Type:** dev-board - **Price:** ~$17.5 - **Product Readiness:** developer - **CPU:** Xtensa LX7 dual-core @ 240 MHz (ESP32-S3) - **CPU Architecture:** Xtensa LX7 - **CPU Cores:** 2 - **RAM:** 512 KB SRAM - **PSRAM:** 2MB (N8R2), 8MB (N8R8), or 16MB (WROOM-2) - **Flash:** 8MB (N8R2/N8R8) or 32MB (WROOM-2) - **Power:** 5V via USB-C or header pins - **Operating Voltage:** 3.3V - **Antenna:** Built-in PCB antenna ## Connectivity - **Wifi:** 2.4GHz 802.11 b/g/n - **Bluetooth:** BLE 5.0 ## Open Source - **Firmware:** Yes - **Schematics:** Yes - **PCB Layout:** Yes ## Compatible Firmware esp-idf, arduino, micropython ## Use Cases - iot - smart-home - environmental-monitoring ## Components - **ESP32-S3-WROOM-1 / WROOM-2** (mcu): Espressif ESP32-S3-WROOM-1 (8 MB Flash, 2 MB or 8 MB PSRAM) or WROOM-2 (32 MB Flash, 16 MB PSRAM) module with dual-core 240 MHz Xtensa LX7, WiFi, and BLE 5. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3-wroom-1_wroom-1u_datasheet_en.pdf&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export) ## Protocols - **I2C**: SDA: GPIO3, SCL: GPIO4 - **SPI**: MOSI: GPIO35, MISO: GPIO36, SCK: GPIO37 - **UART**: TX: GPIO43, RX: GPIO44 - **USB**: - **CAN**: ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | GPIO1 | ADC1_CH0 | ADC | ADC, touch, GPIO | | GPIO2 | ADC1_CH1 | ADC | ADC, touch, GPIO | | GPIO3 | ADC1_CH2 | ADC | ADC, touch, GPIO | | GPIO4 | ADC1_CH3 | ADC | ADC, touch, GPIO | | GPIO5 | ADC1_CH4 | ADC | ADC, touch, GPIO | | GPIO6 | ADC1_CH5 | ADC | ADC, touch, GPIO | | GPIO7 | ADC1_CH6 | ADC | ADC, touch, GPIO | | GPIO8 | ADC1_CH7 | ADC | ADC, touch, GPIO | | GPIO9 | ADC1_CH8 | ADC | ADC, touch, GPIO | | GPIO10 | ADC1_CH9 | ADC | ADC, touch, GPIO | | GPIO11 | ADC2_CH0 | ADC | ADC, touch, GPIO | | GPIO12 | ADC2_CH1 | ADC | ADC, touch, GPIO | | GPIO13 | ADC2_CH2 | ADC | ADC, touch, GPIO | | GPIO14 | ADC2_CH3 | ADC | ADC, GPIO | | GPIO21 | GPIO | GPIO | GPIO, PWM | | GPIO35 | MOSI | SPI | SPI, GPIO | | GPIO36 | MISO | SPI | SPI, GPIO | | GPIO37 | SCK | SPI | SPI, GPIO | | GPIO38 | GPIO | GPIO | GPIO, PWM | | GPIO39 | GPIO | GPIO | GPIO | | GPIO40 | GPIO | GPIO | GPIO | | GPIO41 | GPIO | GPIO | GPIO | | GPIO42 | GPIO | GPIO | GPIO | | GPIO43 | TX | UART | UART, GPIO | | GPIO44 | RX | UART | UART, GPIO | | GPIO45 | GPIO | GPIO | GPIO | | GPIO46 | GPIO | GPIO | GPIO | | GPIO47 | GPIO | GPIO | GPIO | | GPIO48 | RGB_LED | GPIO | GPIO | ## Available Software - **[ESP-IDF](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.espressif.com%2Fprojects%2Fesp-idf%2F&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export)** - **[Arduino ESP32](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fespressif%2Farduino-esp32&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export)** ## Description ## Overview The ESP32-S3-DevKitC-1 is Espressif's official reference development board for the ESP32-S3-WROOM-1 module family. It features the ESP32-S3 dual-core 240 MHz Xtensa LX7 processor with up to 45 GPIO pins broken out to two rows of header pads. The dual USB ports — one for UART debug and one for native USB OTG — allow simultaneous uploading, serial monitoring, and USB device emulation without disconnecting. The board is available in three memory configurations depending on the WROOM-1 module variant. The N8R2 variant carries 8 MB Flash and 2 MB PSRAM; the N8R8 carries 8 MB Flash and 8 MB PSRAM; and the WROOM-2 N32R16V variant (DevKitC-1 v1.1) carries 32 MB Flash and 16 MB PSRAM for the most demanding edge-AI and multimedia applications. The ESP32-S3's AI acceleration — vector instructions and neural-network optimised operations — makes the DevKitC-1 suitable for on-device TensorFlow Lite Micro inference, keyword spotting, and image classification. The rich peripheral set includes SPI, LCD, camera interface, I2C, I2S, UART, USB Serial/JTAG, TWAI/CAN, ADC, capacitive touch sensors, and a hardware temperature sensor. An onboard RGB LED (GPIO 48) and reset/boot buttons are included. Power can be supplied via either USB port or the 5 V and 3.3 V header pins. ESP-IDF is the primary development environment; Arduino support was limited at time of initial release. ## Where to Buy - [Adafruit (N8R2)](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5310&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export) — 17.5 - [Adafruit (N8R8)](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5336&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export) — 19.95 - [Adafruit (WROOM-2 32MB/16MB)](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5364&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export) — 19.95 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5310&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fespressif%2Fesp32-s3&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export) - [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3_datasheet_en.pdf&ref=openhardware.directory&product=esp32-s3-devkitc-1&source=md-export) ## Tags `esp32-s3`, `devkitc`, `espressif`, `esp-idf`, `wifi`, `ble`, `dual-usb`, `wroom-1` ## Images ![ESP32-S3-DevKitC-1](https://nbg1.your-objectstorage.com/openhardware-directory/entities/esp32-s3-devkitc-1/527118026b23.jpg) ![ESP32-S3-DevKitC-1](https://nbg1.your-objectstorage.com/openhardware-directory/entities/esp32-s3-devkitc-1/2be3b0327a73.jpg) ![ESP32-S3-DevKitC-1](https://nbg1.your-objectstorage.com/openhardware-directory/entities/esp32-s3-devkitc-1/345d24498059.jpg) ![ESP32-S3-DevKitC-1](https://nbg1.your-objectstorage.com/openhardware-directory/entities/esp32-s3-devkitc-1/e8a74bd26072.jpg) --- [View full device page](https://openhardware.directory/devices/esp32-s3-devkitc-1)