# ESP32-S3-DevKitC-1 (N8R8)

> Espressif entry-level ESP32-S3 board: ESP32-S3-WROOM-1-N8R8 module (dual-core LX7 240 MHz, 8 MB quad flash, 8 MB octal PSRAM, Wi-Fi 4 + BLE 5, PCB antenna), 2× micro-USB (CP2102N UART bridge + native USB OTG/JTAG), RGB LED on GPIO38, BOOT/RESET, 2×22-pin 0.1" headers, 62.74×25.40 mm.

- Manufacturer: Espressif Systems
- Part number: ESP32-S3-DevKitC-1-N8R8
- Category: Development boards
- Canonical page: https://www.xirkit.io/products/espressif-esp32-s3-devkitc-1-n8r8-e95f
- Pinout: https://www.xirkit.io/products/espressif-esp32-s3-devkitc-1-n8r8-e95f/pinout
- Structured JSON: https://www.xirkit.io/products/espressif-esp32-s3-devkitc-1-n8r8-e95f/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Main chip | ESP32-S3R8 |
| Chips on board | ESP32-S3-WROOM-1-N8R8, ESP32-S3R8 |
| Exposed GPIO | 36 |
| Documented board pins | 44 |
| I/O voltage | 3.3 V |
| Supply voltage | 5–5 V |
| Flash | 8,192 KB |
| SRAM | 512 KB |
| PSRAM | 8,192 KB |
| Interfaces | rtc_gpio, gpio, touch, adc, gpio_matrix, uart, clock, spi, i2c, jtag, led, usb |
| Frameworks | ESP-IDF |
| Dimensions | 62.74 × 25.4 mm |
| Operating temperature | -40 to 65 °C |

## Pinout (44 pins, 37 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 3V3 | J1 · 1 | power out | — | power_out | — | — | — | — | — | — | — |
| 3V3 | J1 · 2 | power out | — | power_out | — | — | — | — | — | — | — |
| RST | J1 · 3 | control | CHIP_PU | rst | 2.475–3.6 V | -0.3–0.825 V | — | — | — | — | no |
| IO4 | J1 · 4 | gpio | GPIO4 | RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO5 | J1 · 5 | gpio | GPIO5 | RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO6 | J1 · 6 | gpio | GPIO6 | RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO7 | J1 · 7 | gpio | GPIO7 | RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO15 | J1 · 8 | gpio | GPIO15 | RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO16 | J1 · 9 | gpio | GPIO16 | RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO17 | J1 · 10 | gpio | GPIO17 | RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO18 | J1 · 11 | gpio | GPIO18 | RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO8 | J1 · 12 | gpio | GPIO8 | RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO3 | J1 · 13 | gpio | GPIO3 | RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), sar_i2c_sda_1 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO46 | J1 · 14 | gpio | GPIO46 | GPIO46, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO9 | J1 · 15 | gpio | GPIO9 | RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO10 | J1 · 16 | gpio | GPIO10 | RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO11 | J1 · 17 | gpio | GPIO11 | RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO12 | J1 · 18 | gpio | GPIO12 | RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO13 | J1 · 19 | gpio | GPIO13 | RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO14 | J1 · 20 | gpio | GPIO14 | RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| 5V | J1 · 21 | power in | — | power_in | — | — | — | — | — | — | — |
| GND | J1 · 22 | ground | — | ground | — | — | — | — | — | — | — |
| GND | J3 · 1 | ground | — | ground | — | — | — | — | — | — | — |
| TX | J3 · 2 | gpio | GPIO43 | U0TXD, GPIO43, CLK_OUT1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| RX | J3 · 3 | gpio | GPIO44 | U0RXD, GPIO44, CLK_OUT2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO1 | J3 · 4 | gpio | GPIO1 | RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), sar_i2c_sda_0 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO2 | J3 · 5 | gpio | GPIO2 | RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), sar_i2c_scl_1 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO42 | J3 · 6 | gpio | GPIO42 | MTMS, GPIO42, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO41 | J3 · 7 | gpio | GPIO41 | MTDI, GPIO41, CLK_OUT1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO40 | J3 · 8 | gpio | GPIO40 | MTDO, GPIO40, CLK_OUT2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO39 | J3 · 9 | gpio | GPIO39 | MTCK, GPIO39, CLK_OUT3, SUBSPICS1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO38 | J3 · 10 | gpio | GPIO38 | GPIO38, FSPIWP, SUBSPIWP, RGB LED, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO37 | J3 · 11 | gpio | GPIO37 | SPIDQS, GPIO37, FSPIQ, SUBSPIQ, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO36 | J3 · 12 | gpio | GPIO36 | SPIIO7, GPIO36, FSPICLK, SUBSPICLK, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO35 | J3 · 13 | gpio | GPIO35 | SPIIO6, GPIO35, FSPID, SUBSPID, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO0 | J3 · 14 | gpio | GPIO0 | RTC_GPIO0, GPIO0, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), sar_i2c_scl_0 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO45 | J3 · 15 | gpio | GPIO45 | GPIO45, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO48 | J3 · 16 | gpio | GPIO48 | GPIO48, SPICLK_N, SUBSPICLK_N_DIFF, SPICLK_N_DIFF, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO47 | J3 · 17 | gpio | GPIO47 | GPIO47, SPICLK_P, SUBSPICLK_P_DIFF, SPICLK_P_DIFF, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO21 | J3 · 18 | gpio | GPIO21 | RTC_GPIO21, GPIO21, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO20 | J3 · 19 | gpio | GPIO20 | RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| IO19 | J3 · 20 | gpio | GPIO19 | RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no |
| GND | J3 · 21 | ground | — | ground | — | — | — | — | — | — | — |
| GND | J3 · 22 | ground | — | ground | — | — | — | — | — | — | — |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| Adafruit | 19.95 USD | out_of_stock | 2026-09-24 | https://www.adafruit.com/product/5336 |

## FAQ

**What microcontroller does the ESP32-S3-DevKitC-1 (N8R8) use?**

The ESP32-S3-DevKitC-1 (N8R8) is built around the ESP32-S3R8, alongside ESP32-S3-WROOM-1-N8R8, SGM2212-3.3XKC3G/TR, CP2102N-A02-GQFN28, SK68XXMINI-HS.

**How many GPIO pins does the ESP32-S3-DevKitC-1 (N8R8) have?**

36 GPIO pins are exposed. Xirkit documents 44 board pins, 37 of them with pin-level electrical limits.

**Are the ESP32-S3-DevKitC-1 (N8R8) I/O pins 5 V tolerant?**

No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2.475–3.6 V.

**How much current can a ESP32-S3-DevKitC-1 (N8R8) GPIO pin source?**

Documented output-high current per pin: 40 mA typ. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.

**What voltage powers the ESP32-S3-DevKitC-1 (N8R8)?**

Supply range 5–5 V. Power inputs: 5V.

**How much does the ESP32-S3-DevKitC-1 (N8R8) cost?**

From $19.95 at Adafruit. Prices are observed unit prices before tax and shipping.

**What are the ESP32-S3-DevKitC-1 (N8R8) dimensions?**

62.74 × 25.4 mm. A STEP model is available for enclosure fit checks.

**Which interfaces does the ESP32-S3-DevKitC-1 (N8R8) support?**

rtc_gpio, gpio, touch, adc, gpio_matrix, uart, clock, spi, i2c, jtag, led, usb.

**How do I program the ESP32-S3-DevKitC-1 (N8R8)?**

Supported frameworks: ESP-IDF.

**Where does this ESP32-S3-DevKitC-1 (N8R8) data come from?**

Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [ESP32-S3-DevKitC-1 (N8R8) datasheet](https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32s3/esp32-s3-devkitc-1/user_guide_v1.1.html)
- [Adafruit listing](https://www.adafruit.com/product/5336)

## Part graph

### Built from

- ESP32-S3-WROOM-1-N8R8 — wireless module on the ESP32-S3-DevKitC-1 (N8R8)
- [ESP32-S3R8](https://www.xirkit.io/products/category/dev-boards/esp32-s3r8) — main processor on the ESP32-S3-DevKitC-1 (N8R8)
- SGM2212-3.3XKC3G/TR — ldo regulator on the ESP32-S3-DevKitC-1 (N8R8)
- CP2102N-A02-GQFN28 — usb uart bridge on the ESP32-S3-DevKitC-1 (N8R8)
- SK68XXMINI-HS — rgb led on the ESP32-S3-DevKitC-1 (N8R8)
- 1N5819HW-7-F — schottky diode on the ESP32-S3-DevKitC-1 (N8R8)

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