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If the LEDs light up, that means the image was flashed to the eMMC correctly.

It is based on the Rockchip RK3229, a quad-core ARM Cortex A7, running up to 1.5GHz, with 1GB RAM.

The board features a six microphone array with speech algorithms including DoA (Direction of Arrival), BF (Beam-Forming), AEC (Acoustic Echo Cancellation), etc.

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It benefits from a powerful and active community allowing for the use of existing software and tools for development, testing, and deployment, enabling rapid product development.

To this end the board consists of two main sections, the first being the center core module containing the CPU, Memory (RAM), and PMU.

The second section is the outer carrier board which contains the peripherals such as the eMMC, connectors, and wireless connectivity components.

Either section or both can be customized through Seeeds customization services.

Output audio. You can plug active speakers or Headphones into this port.

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This USB Port is used to connect to your computer via serial mode of putty (or other serial tools).

You also can connect the ReSpeaker Core v2.0 with your computer via this UART port.

General Purpose Input Output interface for extended applications.

You can burn the image into eMMC, so that the ReSpeaker Core v2.0 can boot from the eMMC.

You can plug USB device, such as USB mouse,USB keyboard and USB flash disk into ReSpeaker Core v2.0 via those two USB hosts.

Also we provide a interface for 2.4G Antenna or PCB Antenna.

Please plug the USB cable gently, otherwise you may damage the interface.Please use the USB cable with 4 wires inside, the 2 wires cable cant transfer data.

If you are not sure about the wire you have, you can click here to buy.

We offer two ways to boot the Respeaker core v2.0.

If you are new to ReSpeaker Core v2.0, lxqt version is recommended.

The sd version will require the SD card to stay inserted all the time.

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So please download the respeaker-debian-9-lxqt-sd-date-4gb.img.xz file.

Or unzip the.img.xz file to a.img file, then burn it to SD card with other image writing tools.

ReSpeaker Core v2.0 will boot from the SD card, and you can see USER1 and USER2 LEDs light up.

USER1 is typically configured at boot to blink in a heartbeat pattern and USER2 is typically configured at boot to light during SD card accesses.

Then the ReSpeaker will boot from its eMMC (onboard flash memory) and not from the SD card.

And the flasher version is for flashing eMMC, and the sd version is for booting from SD card.

When the LEDs turn off, you can power off the board, pull out the SD card and power again.