Connected IoT devices and wireless sensor nodes
On-board radio: Wi-Fi 802.11 b/g/n 2.4 GHz; Bluetooth 5 LE.
Engineering inference
Generic (unbranded)
ESP32-S3 SuperMini Dev Board
ESP32-S3 SuperMini is the thumb-sized (22.5–23.5 × 18 mm) ESP32-S3FH4R2 board: dual-core 240 MHz Xtensa LX7, 512 KB SRAM, 4 MB flash and 2 MB quad-SPI PSRAM (off by default), Wi-Fi 802.11 b/g/n and Bluetooth 5 LE, native USB-C with no serial chip, WS2812 LED on GPIO48, 18 edge pins plus back pads (38 pins, 35 GPIO per espboards) and battery pads with a charger.
ESP32-S3 SuperMiniDevelopment boardPricePrice unknownNo current USD price recorded.
Overview
Board essentials
Facts about the complete product. Unknown values remain open design questions.
- Exposed GPIO
- 35
- Board I/O voltage
- 3.3 V
- Board flash capacity
- 4 MiB
- Board SRAM capacity
- 512 KiB
- Board PSRAM capacity
- 2 MiB
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Space-constrained and embedded builds
22.5 × 18.0 mm footprint.
Engineering inferenceLearning and fast prototyping
Programs from Arduino IDE, ESPHome, PlatformIO.
Engineering inferenceCustom USB devices
USB-C goes straight to the ESP32-S3's native USB Serial/JTAG + USB OTG (no serial chip), so TinyUSB HID/MIDI/CDC devices run without extra hardware.
Engineering inferenceInside this board
The board is the parent product. Each chip has its own memory, pins, capabilities and thermal limits.
main processor
ESP32-S3FH4R2
Espressif Systems
27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu- Architecture
- Xtensa 32-bit LX7 dual-core
- Documented clock
- 240 MHz
- On-chip SRAM
- 512 KiB
3D model & CAD
3D model & CAD files
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
- Envelope (L × W × H)
- 22.5 × 18 × 1.6 mm
- Verification
- generated
- Envelope complete
- No — some heights assumed
thickness=1.6 mm assumed: PCB thickness not printed; 1.6 mm assumed for the CAD envelope only
Pins & mapping
38 board pins and 35 explicit routes documented. The record marks the pinout complete. Alternate functions can share pins and may not be usable together.
Exposed board pins
Board connector positions are the physical points you wire to.
| Board pin | Connector / position | Electrical | Functions / constraints |
|---|---|---|---|
| 5VID 5V | —Position B1 | 5 Vpower in | power_in 5V power input for the board |
| GNDID GND | —Position B2 | 0 Vground | ground Ground connection |
| 3V3ID 3V3 | —Position B3 | 3.3 Vpower out | power_out 3.3V power output for peripherals |
| TXID TX | —Position T1 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | uart, U0TXD (UART0 TX, boot console), U0TXD, GPIO43, CLK_OUT1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) TX |
| RXID RX | —Position T2 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | uart, U0RXD (UART0 RX), U0RXD, GPIO44, CLK_OUT2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) RX |
| IO1ID IO1 | —Position T3 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, TOUCH1, ADC1_CH0, GPIO1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO1, sar_i2c_sda_0 GPIO, ADC Pin |
| IO2ID IO2 | —Position T4 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, TOUCH2, ADC1_CH1, GPIO2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO2, sar_i2c_scl_1 GPIO, ADC pin |
| IO3ID IO3 | —Position T5 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, strapping: JTAG signal-source selection, TOUCH3, ADC1_CH2, GPIO3, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO3, sar_i2c_sda_1Boot strapping pin GPIO, ADC pin |
| IO4ID IO4 | —Position T6 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, TOUCH4, ADC1_CH3, GPIO4, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO4 GPIO, ADC pin |
| IO5ID IO5 | —Position T7 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, TOUCH5, ADC1_CH4, GPIO5, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO5 GPIO, ADC pin |
| IO6ID IO6 | —Position T8 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, TOUCH6, ADC1_CH5, GPIO6, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO6 GPIO, ADC pin |
| IO7ID IO7 | —Position T9 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, TOUCH7, ADC1_CH6, GPIO7, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO7 GPIO, ADC pin |
| IO8ID IO8 | —Position B9 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, TOUCH8, ADC1_CH7, GPIO8, SUBSPICS1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO8 GPIO, ADC pin |
| IO9ID IO9 | —Position B8 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, FSPIHD, TOUCH9, ADC1_CH8, GPIO9, SUBSPIHD, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO9 GPIO, ADC pin |
| IO10ID IO10 | —Position B7 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, FSPICS0, TOUCH10, ADC1_CH9, GPIO10, FSPIIO4, SUBSPICS0, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO10 GPIO, ADC pin |
| IO11ID IO11 | —Position B6 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, FSPID (MOSI), TOUCH11, ADC2_CH0, GPIO11, FSPIIO5, SUBSPID, FSPID, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO11 GPIO, ADC pin |
| IO12ID IO12 | —Position B5 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, FSPICLK, TOUCH12, ADC2_CH1, GPIO12, FSPIIO6, SUBSPICLK, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO12 GPIO, ADC pin |
| IO13ID IO13 | —Position B4 | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, FSPIQ (MISO), TOUCH13, ADC2_CH2, GPIO13, FSPIIO7, SUBSPIQ, FSPIQ, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO13 GPIO, ADC pin |
| IO14ID IO14 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, FSPIWP, TOUCH14, ADC2_CH3, GPIO14, FSPIDQS, SUBSPIWP, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO14 GPIO, ADC pin |
| IO15ID IO15 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, XTAL_32K_P, ADC2_CH4, GPIO15, U0RTS, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO15 GPIO, ADC pin |
| IO16ID IO16 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | adc, XTAL_32K_N, ADC2_CH5, GPIO16, U0CTS, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO16 GPIO, ADC pin |
| IO17ID IO17 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | ADC2_CH6, GPIO17, U1TXD, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO17 GPIO |
| IO18ID IO18 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | ADC2_CH7, GPIO18, U1RXD, CLK_OUT3, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO18 GPIO |
| IO21ID IO21 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | GPIO21, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO21 GPIO |
| IO33ID IO33 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | GPIO33, FSPIHD, SUBSPIHD, SPIIO4, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO34ID IO34 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | GPIO34, FSPICS0, SUBSPICS0, SPIIO5, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO35ID IO35 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | GPIO35, FSPID, SUBSPID, SPIIO6, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO36ID IO36 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | GPIO36, FSPICLK, SUBSPICLK, SPIIO7, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO37ID IO37 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | GPIO37, FSPIQ, SUBSPIQ, SPIDQS, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO38ID IO38 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | GPIO38, FSPIWP, SUBSPIWP, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO39ID IO39 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | MTCK (JTAG TCK), MTCK, GPIO39, CLK_OUT3, SUBSPICS1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO40ID IO40 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | MTDO (JTAG TDO), MTDO, GPIO40, CLK_OUT2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO41ID IO41 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | MTDI (JTAG TDI), MTDI, GPIO41, CLK_OUT1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO45ID IO45 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | strapping: VDD_SPI voltage selection, GPIO45, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera)Boot strapping pin GPIO |
| IO42ID IO42 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | MTMS (JTAG TMS), MTMS, GPIO42, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO, on the back of the board |
| IO46ID IO46 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | strapping: boot mode / ROM print, GPIO46, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera)Boot strapping pin GPIO |
| IO47ID IO47 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | SPICLK_P_DIFF, GPIO47, SUBSPICLK_P_DIFF, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
| IO48ID IO48 | —Position back pad | 3.3 Vgpio5 V tolerant: noMax drive 28 mA | onboard WS2812 RGB LED (DIN), SPICLK_N_DIFF, GPIO48, SUBSPICLK_N_DIFF, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) GPIO |
Board → chip mapping
A board label, a chip signal ID and a package lead number are different identifiers.
| Board connection | Chip instance | Chip signal | Package lead | Route |
|---|---|---|---|---|
TX | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO43ID GPIO43 | — | direct |
RX | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO44ID GPIO44 | — | direct |
IO1 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO1ID GPIO1 | — | direct |
IO2 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO2ID GPIO2 | — | direct |
IO3 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO3ID GPIO3 | — | direct |
IO4 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO4ID GPIO4 | — | direct |
IO5 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO5ID GPIO5 | — | direct |
IO6 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO6ID GPIO6 | — | direct |
IO7 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO7ID GPIO7 | — | direct |
IO8 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO8ID GPIO8 | — | direct |
IO9 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO9ID GPIO9 | — | direct |
IO10 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO10ID GPIO10 | — | direct |
IO11 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO11ID GPIO11 | — | direct |
IO12 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO12ID GPIO12 | — | direct |
IO13 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO13ID GPIO13 | — | direct |
IO14 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO14ID GPIO14 | — | direct |
IO15 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO15ID GPIO15 | — | direct |
IO16 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO16ID GPIO16 | — | direct |
IO17 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO17ID GPIO17 | — | direct |
IO18 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO18ID GPIO18 | — | direct |
IO21 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO21ID GPIO21 | — | direct |
IO33 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO33ID GPIO33 | — | direct |
IO34 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO34ID GPIO34 | — | direct |
IO35 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO35ID GPIO35 | — | direct |
IO36 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO36ID GPIO36 | — | direct |
IO37 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO37ID GPIO37 | — | direct |
IO38 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO38ID GPIO38 | — | direct |
IO39 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO39ID GPIO39 | — | direct |
IO40 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO40ID GPIO40 | — | direct |
IO41 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO41ID GPIO41 | — | direct |
IO45 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO45ID GPIO45 | — | direct |
IO42 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO42ID GPIO42 | — | direct |
IO46 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO46ID GPIO46 | — | direct |
IO47 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO47ID GPIO47 | — | direct |
IO48 | ESP32-S3FH4R2Instance 27b2b1e9-6624-5942-9e21-43aa0320c48d--mcu | GPIO48ID GPIO48 | — | direct |
ESP32-S3FH4R2 · chip pins
Chip signals stay attached to their chip instance, including their package lead and board exposure.
Chip package pins have not been transcribed for this instance.
Specifications
Board electrical limits
Supply voltage and GPIO logic voltage describe different parts of the design.
- I/O voltage
- 3.3 V
- Supply voltage range
- 5 to 5 V
- Nominal supply
- 5 V
- Logic high minimum
- 2.475 V
- Per-pin drive limit
- 28 mA
| Input | Voltage range | Connector | Notes |
|---|---|---|---|
| 5V | Unknown | — | 5V power input for the board |
A 5 V supply input does not establish 5 V tolerance on GPIO. Check the documented power input and logic domain for each connection.
Board-level capabilities
These describe the assembled board. Interface counts do not guarantee simultaneous operation.
| Interface | Support | Count | Details |
|---|---|---|---|
| uart | Documented | Unknown | TX, RX, IO15, IO16, IO17, IO18 |
| gpio | Documented | Unknown | TX, RX, IO1, IO2, IO3, IO4, IO5, IO6, IO7, IO8, IO9, IO10, IO11, IO12, IO13, IO14, IO15, IO16, IO17, IO18, IO21, IO33, IO34, IO35, IO36, IO37, IO38, IO39, IO40, IO41, IO45, IO42, IO46, IO47, IO48 |
| clock | Documented | Unknown | TX, RX, IO15, IO16, IO18, IO39, IO40, IO41 |
| gpio_matrix | Documented | Unknown | TX, RX, IO1, IO2, IO3, IO4, IO5, IO6, IO7, IO8, IO9, IO10, IO11, IO12, IO13, IO14, IO15, IO16, IO17, IO18, IO21, IO33, IO34, IO35, IO36, IO37, IO38, IO39, IO40, IO41, IO45, IO42, IO46, IO47, IO48 |
| adc | Documented | 16 | IO1, IO2, IO3, IO4, IO5, IO6, IO7, IO8, IO9, IO10, IO11, IO12, IO13, IO14, IO15, IO16, IO17, IO18count stated in datasheet (adc_channels) |
| touch | Documented | Unknown | IO1, IO2, IO3, IO4, IO5, IO6, IO7, IO8, IO9, IO10, IO11, IO12, IO13, IO14 |
| rtc_gpio | Documented | Unknown | IO1, IO2, IO3, IO4, IO5, IO6, IO7, IO8, IO9, IO10, IO11, IO12, IO13, IO14, IO15, IO16, IO17, IO18, IO21 |
| i2c | Documented | Unknown | IO1, IO2, IO3 |
| control | Documented | Unknown | IO3, IO45, IO46 |
| spi | Documented | Unknown | IO8, IO9, IO10, IO11, IO12, IO13, IO14, IO33, IO34, IO35, IO36, IO37, IO38, IO39, IO47, IO48 |
| debug | Documented | Unknown | IO39, IO40, IO41, IO42 |
| jtag | Documented | Unknown | IO39, IO40, IO41, IO42 |
| led | Documented | Unknown | IO48 |
| usb | Documented | 1 | USB-C, native USB Serial/JTAG + USB OTG |
Memory on the board
Board capacity includes installed memory; chip-local memory is listed separately under each processor.
- Flash
- 4 MiB
- SRAM
- 512 KiB
- PSRAM
- 2 MiB
Capacities use KiB / MiB (1024-based units). Firmware partitions and runtime allocations reduce application-available memory.
Thermal limits by level
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Assembled board
ESP32-S3FH4R2 · main processor
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 22.5 mm
- Width
- 18 mm
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
Board connectors
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| usbUSB Type-C (native ESP32-S3 USB Serial/JTAG + OTG, no USB-serial chip) | Unknown | Unknown | — |
| header2 × 9 edge pins, 2.54 mm pitch, plus GPIO pads on the back | 38 | 2.54 mm | — |
| batteryB+ / B− lithium battery pads (on common HW-747-style boards; verify per board) | Unknown | Unknown | — |
Software and certifications
- Software frameworks
- Arduino IDE, ESPHome, PlatformIO, ESP-IDF
Complete structured record
Every available field, including details beyond the summaries. Null means the value has not been established.
Sourcing & files
Supplier offers
US / USD is the target market. Observed price and stock are separate from a delivery quote.
walmart.com (sold by ACEIRMC, fulfilled by Walmart)
US · USD
$4.00Minimum 5 units
- Observed stock
- in stock
- Checked
- Oct 13, 2026, 05:16 AM UTC
- Delivery estimate
- Not quoted
This observation is stale or has no verified check time. Recheck with the supplier.
Visit supplier (opens in a new tab)Delivery depends on quantity, postal code and shipping method. A dispatch statement such as “ship today” is not an arrival estimate.
Design files and references
Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Datasheet (opens in a new tab)
Manufacturer reference
ESP32-S3 SuperMini board, top side (espboards.dev photo) (opens in a new tab)
Unverified reference
inspected: black PCB, USB-C, BOOT and RESET buttons, ESP32-S3 QFN with Espressif logo, edge pads TX RX 1-7 and 5V GND 3V3 13-8, pads 48 and BAT near the USB, red ceramic antenna
STEP (generated from datasheet drawing) — link unavailable
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Source evidence
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.io_voltage_v, spec.constraints.electrical.logic_high_min_v, spec.constraints.electrical.pin_drive_max_ma, spec.constraints.electrical.supply_voltage_max_v, spec.constraints.electrical.supply_voltage_min_v, spec.constraints.electrical.supply_voltage_nominal_v, spec.geometry.cad.assumptions, spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.provides.capabilities, spec.provides.features, spec.provides.gpio_count, spec.provides.memory.flash_kb, spec.provides.memory.psram_kb, spec.provides.memory.sram_kb, spec.provides.software_frameworks, spec.provides.wireless, spec.usage.connectors, spec.usage.pin_mappings, spec.usage.pinout, spec.usage.pinout_complete, spec.usage.requirements.power_inputs
sha256 59b3eb592ec48b40a8ff76619cb44b96b4f747eb307ebc1382da18b02d87e789
Supports: offers
FAQ
ESP32-S3 SuperMini Dev Board questions
What microcontroller does the ESP32-S3 SuperMini Dev Board use?
The ESP32-S3 SuperMini Dev Board is built around the ESP32-S3FH4R2.
How many GPIO pins does the ESP32-S3 SuperMini Dev Board have?
35 GPIO pins are exposed. Xirkit documents 38 board pins, 35 of them with pin-level electrical limits.
Are the ESP32-S3 SuperMini Dev Board 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 SuperMini Dev Board 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 SuperMini Dev Board?
Supply range 5–5 V. Power inputs: 5V.
How much does the ESP32-S3 SuperMini Dev Board cost?
From $4 at walmart.com (sold by ACEIRMC, fulfilled by Walmart). Prices are observed unit prices before tax and shipping.
What are the ESP32-S3 SuperMini Dev Board dimensions?
22.5 × 18 mm. A STEP model is available for enclosure fit checks.
Which interfaces does the ESP32-S3 SuperMini Dev Board support?
uart, gpio, clock, gpio_matrix, adc, touch, rtc_gpio, i2c, control, spi, debug, jtag, led, usb.
How do I program the ESP32-S3 SuperMini Dev Board?
Supported frameworks: Arduino IDE, ESPHome, PlatformIO, ESP-IDF.
Where does this ESP32-S3 SuperMini Dev Board 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.