# ESP32-S3-DevKitM-1

> Espressif official ESP32-S3 development board using the compact ESP32-S3-MINI-1 module, with dual-core 240 MHz LX7, 8 MB flash, up to 45 GPIO, dual USB ports, and smaller footprint than the WROOM-1.

## Quick Facts

- **Brand:** Espressif
- **Board Type:** dev-board
- **Price:** ~$15.95
- **Product Readiness:** developer
- **CPU:** Xtensa LX7 dual-core @ 240 MHz (ESP32-S3)
- **CPU Architecture:** Xtensa LX7
- **CPU Cores:** 2
- **RAM:** 512 KB SRAM
- **Flash:** 8MB
- **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

## Components

- **ESP32-S3-MINI-1** (mcu): Espressif ESP32-S3-MINI-1 compact module with dual-core 240 MHz Xtensa LX7, 8 MB Flash, WiFi, and BLE 5, in a smaller package than WROOM-1. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3-mini-1_mini-1u_datasheet_en.pdf&ref=openhardware.directory&product=esp32-s3-devkitm-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 |
| GPIO35 | MOSI | SPI | SPI, GPIO |
| GPIO36 | MISO | SPI | SPI, GPIO |
| GPIO37 | SCK | SPI | SPI, GPIO |
| GPIO43 | TX | UART | UART, GPIO |
| GPIO44 | RX | UART | UART, 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-devkitm-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-devkitm-1&source=md-export)**

## Description

## Overview

The ESP32-S3-DevKitM-1 is the DevKit variant using the more compact ESP32-S3-MINI-1 module, which features an embedded PCB antenna in a smaller package compared to the WROOM-1. The core silicon is identical: a dual-core 240 MHz Xtensa LX7 ESP32-S3 with WiFi and BLE 5, but without PSRAM in the N8 variant — making it the leanest configuration for cost-sensitive designs that don't need the extra RAM.

Like the DevKitC-1, the DevKitM-1 provides two USB ports — one UART/debug and one native USB OTG — so you can upload new firmware while keeping a serial connection open. Up to 45 GPIO pins are available, covering the same wide peripheral set: SPI, LCD, camera interface, I2C, I2S, UART, TWAI, ADC, touch sensor, and temperature sensor.

The MINI-1 module's smaller footprint makes the DevKitM-1 better suited for evaluating designs that will ultimately use the compact module in production, where board space is at a premium. An addressable RGB LED, reset button, and boot button are provided for development convenience.

ESP-IDF is the primary toolchain; Arduino support for the ESP32-S3 was still maturing at the time of this board's release, with full support arriving in later Arduino-ESP32 core releases.

## Where to Buy

- [Adafruit](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5311&ref=openhardware.directory&product=esp32-s3-devkitm-1&source=md-export) — 15.95

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F5311&ref=openhardware.directory&product=esp32-s3-devkitm-1&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fespressif%2Fesp32-s3&ref=openhardware.directory&product=esp32-s3-devkitm-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-devkitm-1&source=md-export)

## Tags

`esp32-s3`, `devkitm`, `espressif`, `esp-idf`, `wifi`, `ble`, `mini-module`

## Images

![ESP32-S3-DevKitM-1](https://nbg1.your-objectstorage.com/openhardware-directory/entities/esp32-s3-devkitm-1/b313ae6152ac.jpg)
![ESP32-S3-DevKitM-1](https://nbg1.your-objectstorage.com/openhardware-directory/entities/esp32-s3-devkitm-1/0bafa38c856e.jpg)

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