Nisus. The $7 Wireless Board.

Nisus.

The $7 Wireless Board.

The NISUS board is a compact, Wi-Fi and Bluetooth-enabled embedded platform built around the Espressif Xtensa® dual-core architecture. It is designed for IoT, edge computing, sensor integration, and real-time control applications. The board balances performance, connectivity, and peripheral density, making it suitable for both prototyping and production-oriented designs.

Specifications

    • Microcontroller Architecture: Xtensa® Dual-Core 32-bit LX6

    • Clock Frequency: Up to 240 MHz

    • Execution Model: Symmetric multiprocessing with support for real-time workloads

    • Use Cases: Signal processing, embedded networking, low-latency control loops

    • Internal SRAM: 520 KB

    • External Flash: Typically 4 MB SPI Flash

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

    • Bluetooth: v4.2 BR/EDR and Bluetooth Low Energy (BLE)

    • GPIO Pins: 26 usable pins

    • Configurable for digital input/output, interrupts, and alternate functions

    • ADC:

      • 12-bit resolution

      • Up to 16 channels

    • DAC:

      • 8-bit resolution

      • 2 output channels

    • UART: 3 channels

    • SPI: 3 channels

    • I2C: 2 channels

    • I2S: 2 channels

    • Operating Voltage Range: 2.2V – 3.6V

    • Typical Operating Voltage: 3.3V

    • Internet of Things (IoT) devices

    • Smart home and building automation

    • Industrial monitoring and control

    • Wearables and low-power wireless systems

    • Sensor hubs and data aggregation nodes

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