Description Spresense is a compact development board based on Sony’s power-efficient multicore microcontroller CXD5602. It allows developers to create IoT applications in a very short time and is supported by the Arduino IDE as well as the more advanced NuttX based SDK. Integrated GPS - The embedded GNSS with support for GPS, QZSS, and GLONASS enables applications where tracking is required. Hi-res audio output and multi-mic inputs - Advanced 192kHz/24 bit audio codec and amplifier for audio output, and support for up to 8 mic input channels. Multicore microcontroller - Spresense is powered by Sony's CXD5602 microcontroller (ARM® Cortex®-M4F × 6 cores), with a clock speed of 156 MHz. The Spresense main board has the following features. Sony’s CXD5602 Processor 8 MB Flash memory PCB with small footprint Dedicated camera connector GNSS (GPS) antenna Pins and LEDs Multiple GPIO (UART, SPI, I2C, I2S) 2 ADC channels Application LED x 4 (Green) Power LED (Blue) USB serial port