{"product_id":"esp32-s3-development-board-expansion-adapter-wifi-bt-mcu","title":"ESP32-S3 Development Board Expansion Adapter – WiFi BT MCU","description":"\u003ch2\u003eESP32-S3 Development Board Expansion Adapter | WiFi \u0026amp; Bluetooth MCU Module\u003c\/h2\u003e\n\u003cp\u003eTake your embedded projects to the next level with the \u003cstrong\u003eESP32-S3 Development Board Expansion Adapter\u003c\/strong\u003e. Built around the powerful ESP32-S3WROOM-1 (N16R8) module, this compact adapter packs 2.4 GHz WiFi and Bluetooth connectivity into a slim 57 × 28 × 4 mm form factor — making it an ideal hub for IoT prototyping, smart-device development, and maker projects of every kind.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Type-C Interfaces:\u003c\/strong\u003e Two USB Type-C ports for maximum flexibility. The \u003cem\u003eCOM\u003c\/em\u003e port is ready to use straight out of the box for serial communication, while the \u003cem\u003eUSB\u003c\/em\u003e port supports OTG mode or firmware downloading (hold the BOOT button at power-up to enter download mode).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e44-Pin Expansion Header:\u003c\/strong\u003e Full GPIO breakout gives you easy access to UART, SPI, I²C, ADC, DAC, PWM, and more — perfect for breadboarding or custom PCB integration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eESP32-S3WROOM-1 N16R8 Module:\u003c\/strong\u003e 16 MB Flash + 8 MB PSRAM for memory-intensive applications such as machine learning inference, image processing, and complex real-time tasks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.4 GHz WiFi (802.11 b\/g\/n) \u0026amp; Bluetooth 5.0 LE:\u003c\/strong\u003e Onboard wireless keeps your builds cable-free and cloud-connected.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Mixed-Material Construction:\u003c\/strong\u003e Measures just 57 × 28 × 4 mm — fits neatly into enclosures, wearables, and space-constrained designs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in 4 Color Options:\u003c\/strong\u003e Choose the finish that matches your build aesthetic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eESP32-S3WROOM-1 N16R8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash \/ PSRAM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 MB Flash \/ 8 MB PSRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWireless\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.4 GHz WiFi 802.11 b\/g\/n + Bluetooth 5.0 LE\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × USB Type-C (COM + USB\/OTG)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGPIO Breakout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44-pin expansion header\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e57 × 28 × 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMixed (PCB + components)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eWhether you're a student exploring embedded systems, a maker building a smart home device, or a professional engineer prototyping an IoT product, the ESP32-S3 Expansion Adapter bridges the gap between module and working project with zero hassle.\u003c\/p\u003e\n\n\u003ch3\u003eLearn More About IoT \u0026amp; Embedded Development Standards\u003c\/h3\u003e\n\u003cp\u003eFor guidance on electromagnetic compatibility and wireless device standards, visit the \u003ca href=\"https:\/\/www.nist.gov\/communications-technology-laboratory\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST Communications Technology Laboratory\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What makes the ESP32-S3 Development Board Expansion Adapter different from a standard ESP32 breakout board?\u003c\/h4\u003e\n\u003cp\u003eA: Unlike a basic breakout, this expansion adapter features dual USB Type-C ports (COM for serial communication and USB for OTG\/firmware download), a full 44-pin GPIO header, and is built around the high-spec ESP32-S3WROOM-1 N16R8 module with 16 MB Flash and 8 MB PSRAM — providing significantly more connectivity, memory, and versatility for advanced IoT and embedded projects.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I enter firmware download mode on the ESP32-S3 Expansion Adapter?\u003c\/h4\u003e\n\u003cp\u003eA: Connect the USB Type-C port labelled \u003cem\u003eUSB\u003c\/em\u003e to your computer. Hold the \u003cstrong\u003eBOOT\u003c\/strong\u003e button on the board while applying power (or while pressing the RESET button). The board will enumerate as a serial download device, allowing you to flash firmware using tools such as esptool.py or the Arduino IDE.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the ESP32-S3 Expansion Adapter compatible with Arduino IDE and MicroPython?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The ESP32-S3 is fully supported by the Arduino IDE (via the ESP32 board package from Espressif), MicroPython, and ESP-IDF, giving you the freedom to code in whichever environment you prefer.\u003c\/p\u003e\n\u003ch4\u003eQ: What are the dimensions and how compact is the board?\u003c\/h4\u003e\n\u003cp\u003eA: The board measures 57 × 28 × 4 mm, making it extremely compact and suitable for integration into enclosures, wearables, and space-constrained designs.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What makes the ESP32-S3 Development Board Expansion Adapter different from a standard ESP32 breakout board?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Unlike a basic breakout, this expansion adapter features dual USB Type-C ports (COM for serial communication and USB for OTG\/firmware download), a full 44-pin GPIO header, and is built around the high-spec ESP32-S3WROOM-1 N16R8 module with 16 MB Flash and 8 MB PSRAM — providing significantly more connectivity, memory, and versatility for advanced IoT and embedded projects.\"}}, {\"@type\": \"Question\", \"name\": \"How do I enter firmware download mode on the ESP32-S3 Expansion Adapter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Connect the USB Type-C port labelled USB to your computer. 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