Pulse S32-S3 Development Board

Overview

The Boardoza Pulse S32-S3 is a high-performance, industrial-grade development breakout board built around the Espressif ESP32-S3-WROOM-1-N4R2 module. Engineered for rapid prototyping and seamless deployment, this board integrates advanced connectivity with robust power management in a standardized 60x60mm form factor.

Designed for professional firmware developers and hardware engineers, the Pulse S32-S3 bridges the gap between evaluation and production-ready embedded systems, specifically targeting IoT, smart industrial automation, and edge computing applications.

Front Side	Back Side

Core Technical Specifications

• MCU Core: Dual-core 32-bit Xtensa® LX7 microprocessor running up to 240 MHz.

• Memory Architecture:

  • Internal SRAM: 512 KB

  • External Flash: 8 MB (via QSPI)

  • External PSRAM: 2 MB (Optimized for memory-intensive AI and DSP tasks)

• Wireless Connectivity: * Wi-Fi: IEEE 802.11 b/g/n (up to 150 Mbps)

  • Bluetooth: Bluetooth 5 (LE) with Long Range support.

• Power Management:

  • Dual-source input via USB Type-C (5V) or 1S Li-Ion Battery (3.7V).

  • Optimized LDO regulators for ultra-low power consumption in Deep Sleep mode.

  • On-board battery charging circuit for portable deployment.

• Form Factor: Industrial-standard 60x60mm PCB layout for modular compatibility.

Hardware Interfaces & Connectivity

The Pulse S32-S3 is designed with a rich peripheral set to ensure maximum flexibility for sensor fusion and actuator control:

1. I2C Interface (J3 Connector): Dedicated bus for seamless sensor integration.

2. UART Interface (J4 Connector): High-speed asynchronous communication for telemetry and debugging.

3. Extensive GPIO Header: 22 multi-function GPIO pins supporting SPI, PWM, ADC, and DAC functionalities.

4. Visual Feedback: Integrated Addressable RGB LED for status monitoring and diagnostic signaling.

Key Engineering Features

AI Acceleration & Signal Processing

The ESP32-S3 silicon includes dedicated vector instructions for accelerating Artificial Intelligence (AI) workloads and Digital Signal Processing (DSP). This makes the Pulse S32-S3 an ideal platform for high-performance edge inference and voice recognition.

Robust Power Path Management

The board features an intelligent power switching mechanism between USB and Battery inputs, ensuring continuous operation for field-deployed devices. The integrated 3.3V LDO provides stable voltage rails even under high peak currents during wireless transmission.

Ecosystem Compatibility

Fully compatible with modern development environments, including:

• ESP-IDF (Native SDK)

• Arduino IDE

• PlatformIO

• MicroPython / CircuitPython

Applications

• Industrial IoT (IIoT): Edge data processing and gateway communication.

• Smart Home Systems: Centralized control hubs with voice assistant capabilities.

• Wearable Technology: Energy-efficient, battery-powered health and fitness trackers.

• Remote Sensing: Long-range telemetry using Wi-Fi/BLE mesh networking.

Board Dimensions

Ready to integrate? You can purchase the Boardoza Pulse S32-S3 directly from our online store. Worldwide shipping is available for engineering samples and production batches.

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