Unexpected Maker NanoS3 ESP32-S3 IoT Module – Ultra Compact WiFi + Bluetooth Dev Board with 8MB PSRAM
Unexpected Maker NanoS3 ESP32-S3 IoT Module – Ultra Compact WiFi + Bluetooth Dev Board with 8MB PSRAM - Image 2
SKU: IOWC-1224
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Unexpected Maker NanoS3 ESP32-S3 IoT Module – Ultra Compact WiFi + Bluetooth Dev Board with 8MB PSRAM

₹1,359.00 (Inclusive of all taxes)
Out of Stock

The Unexpected Maker NanoS3 is an ultra-compact ESP32-S3 development board featuring dual-core LX7 processors, 8MB PSRAM, integrated 2.4GHz Wi-Fi and Bluetooth 5.0, and a USB-C connector, designed for space-constrained IoT, wearable, and embedded applications.

Features

  • Powered by the ESP32-S3 dual-core LX7 microcontroller with integrated 2.4GHz Wi-Fi and Bluetooth 5.0 for robust wireless connectivity.
  • Ultra-compact 28mm x 11mm form factor ideal for wearable tech, portable devices, and space-constrained embedded projects.
  • Includes 8MB of PSRAM for handling complex data buffers, graphics, and audio processing tasks.
  • Features a modern USB-C connector for reliable power delivery, programming, and serial communication.
  • Low-power operating modes enable efficient battery-powered deployments in remote sensing and IoT nodes.

Out of stock

Description

The Unexpected Maker NanoS3 packs the full capabilities of the Espressif ESP32-S3 into a remarkably small 28mm x 11mm footprint. This board is engineered for developers requiring high-performance wireless connectivity and substantial memory in a minimal space. It integrates a dual-core Tensilica LX7 processor capable of running at up to 240 MHz, alongside 8MB of external PSRAM, making it suitable for applications involving data-intensive tasks, lightweight machine learning, or graphical interfaces.

Wireless communication is handled by the integrated 2.4GHz radio, supporting IEEE 802.11 b/g/n Wi-Fi and Bluetooth 5.0 with BLE. The onboard PCB antenna provides a reliable link for IoT deployments. Power management features, including multiple sleep modes, allow for extended operation in battery-powered scenarios. The board’s GPIOs expose SPI, I2C, UART, and other interfaces, offering full flexibility for sensor integration and peripheral expansion.

Key Features

  • ESP32-S3 dual-core LX7 processor delivers high computational performance for complex IoT logic and edge processing.
  • Integrated 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5.0 with BLE enable versatile local and cloud connectivity.
  • 8MB of external PSRAM supports memory-intensive applications like audio buffers, camera image processing, and advanced GUI frameworks.
  • Ultra-small 28mm x 11mm form factor is perfect for embedding into final products, wearables, and compact enclosures.
  • Modern USB-C interface provides a robust connection for programming, debugging, and power supply up to 500mA.
  • Comprehensive GPIO breakout allows for extensive peripheral and sensor integration via SPI, I2C, UART, and ADC interfaces.
  • Onboard PCB antenna simplifies design and reduces BOM cost while maintaining good wireless performance for indoor applications.
  • Supported by the mature ESP-IDF framework, Arduino Core, and MicroPython for rapid firmware development.

Applications

  • Wearable electronics and smart badges requiring compact size and wireless connectivity.
  • Space-constrained IoT sensor nodes for environmental monitoring, smart home automation, and asset tracking.
  • Prototyping and embedding into final product designs for consumer electronics and portable devices.
  • Edge computing projects leveraging the PSRAM for audio processing, light machine learning models, or display buffers.
  • Educational platforms for teaching embedded systems, wireless protocols, and IoT development.

Technical Specifications

Microcontroller / SoCEspressif ESP32-S3 (Dual-core LX7, up to 240 MHz)
Wireless ProtocolsWi-Fi 802.11 b/g/n (2.4GHz), Bluetooth 5.0 (BLE)
Memory8MB PSRAM (External)
Interface / ConnectivityUSB-C, GPIO, SPI, I2C, UART
AntennaIntegrated PCB Antenna
Dimensions28 mm x 11 mm
Programming SupportESP-IDF, Arduino IDE, MicroPython

Frequently Asked Questions

How do I program the Unexpected Maker NanoS3 development board?

You can program the NanoS3 using the Espressif IoT Development Framework (ESP-IDF), the Arduino IDE with the ESP32 board package, or MicroPython. Connect the board via the USB-C port to your computer. In Arduino IDE, select 'ESP32S3 Dev Module' as your board. For ESP-IDF, set the target to 'esp32s3' and use the `idf.py` build and flash commands. The board typically uses the built-in USB-serial converter for communication, so no external programmer is needed.

What is the purpose of the 8MB PSRAM on the NanoS3 board?

The 8MB of external PSRAM (Pseudo Static RAM) significantly expands the available volatile memory beyond the chip's internal SRAM. This is crucial for memory-intensive tasks such as buffering high-resolution camera images, storing audio samples, managing complex graphics buffers for displays, or running larger TensorFlow Lite Micro models for edge AI. It allows your application to handle larger datasets without constant external storage access, improving performance for advanced IoT and multimedia applications.

What is the power supply requirement and typical operating current for the NanoS3?

The NanoS3 is powered via the USB-C port at a standard 5V. The operating current varies significantly based on CPU activity and radio usage. During active Wi-Fi transmission, peak currents can reach several hundred milliamps. In deep sleep mode, with the CPU and radios powered down, current consumption can drop to microamps, making it suitable for long-term battery operation. For precise power planning, refer to the ESP32-S3 datasheet's electrical characteristics and use the power management APIs in ESP-IDF to optimize sleep cycles.

Package Includes

  • 1 x Unexpected Maker NanoS3 ESP32-S3 Development Board

Additional Information

Weight 0.008 kg
Dimensions 2.8 × 1.1 cm

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