WT9932S3-NANO Feature Introduction

1. Introduction

WT9932S3-NANO is an ultra-compact high-performance wireless development board launched by wireless-tag, based on the Espressif ESP32-S3R8 chip and fully compatible with the Arduino Nano ESP32 ecosystem. The main controller adopts a Xtensa® 32-bit LX7 dual-core processor with a maximum clock frequency of 240MHz, integrating 2.4GHz Wi-Fi and Bluetooth LE wireless communication capabilities.

With its small form factor and rich resources, this development board supports both Arduino and MicroPython programming environments. It is suitable for embedding into standalone products or prototypes and is widely used in scenarios such as IoT terminals, intelligent control, USB-HID devices, maker education, and low-power wireless applications, emphasizing ease of use, compatibility, and high integration.

🔧 Core Hardware Configuration

• Main Controller:
  Uses the Espressif ESP32-S3R8, featuring a built-in Xtensa® LX7 dual-core 32-bit processor with a clock frequency of up to 240MHz, providing excellent real-time processing performance.

• Memory Resources:

  • 384kB ROM
  • 512kB SRAM
  • 16MB Flash
  • 8MB PSRAM
    Suitable for running relatively complex application logic as well as graphics and networking tasks.

• Wireless Communication:
  Integrated 2.4GHz Wi-Fi and Bluetooth LE, offering stable RF performance to meet mainstream IoT wireless connectivity requirements.

• USB Functionality:
  Supports USB HID functionality, allowing USB-based emulation of keyboards, mice, and other human interface devices, enabling convenient interaction with PCs or host systems.

• Power Supply:

  • Operating voltage: 3.3V
  • External supply voltage: 5V
    Supports Type-C power supply, header pin power supply, and castellated pad power supply methods.

🛠️ Design Features

• Ultra-small Nano form factor, compatible with the Arduino Nano ESP32 pin layout, enabling easy migration of existing projects.
• Onboard 16MB Flash + 8MB PSRAM, offering a clear resource advantage among boards of the same size.
• Supports both Arduino and MicroPython programming environments, allowing flexible selection based on project requirements.
• Compatible with Arduino IoT Cloud, enabling rapid construction of cloud-based monitoring and control systems.
• Provides castellated pad design, allowing direct soldering onto user-defined PCBs, suitable for product-level applications.
• Onboard BOOT and RESET buttons for a friendly debugging and firmware download experience.

⚙️ Development Advantages

• Fully compatible with Arduino and MicroPython development ecosystems, offering a low learning curve.
• Rich memory resources, suitable for applications of moderate complexity.
• Supports Arduino IoT Cloud for fast cloud integration.
• wireless-tag continuously provides documentation and technical support, making it suitable for long-term project use.

2. Pin Description

Left Header Pins:

Right Header Pins:

Power Characteristics

You may choose one of the following power supply methods to power the WT9932S3-NANO series development boards:

• Supply power via the VIN input pin using Dupont wires with the corresponding voltage;
• Supply power via the VBUS pin using Dupont wires with the corresponding voltage;
• Supply power externally through the Type-C connector.