Data Sheet

Caution: Do not unplug the Dev Board to shut it down. Doing so could corrupt the system image if any

write operations are in progress. Instead, safely shutdown the system with the following command:

sudo shutdown now

When the red LED on the Dev Board turns off, you can unplug the power.

LED behavior

The Dev Board has two sets of on-board LED lights: one LED for power status, and a pair of LEDs providing the status of

the serial port.

The Ethernet port also has a pair of LED lights.

Power LED

The LED that provides power status is situated between the Power (PWR) and USB On-The-Go (OTG) ports. It lights up

red when the board is powered up and switches off when either power is removed or the main SoC is shut down (for

example, when a sudo shutdown command is issued).

Serial port LEDs

The board has green and yellow LEDs near the serial console connector (USB micro-B), those show TX/RX activity via

serial interface. The green LED lights up when there is activity on the RX line (indicating data is being received over the

serial interface), while the yellow LED lights up when there is activity on the TX line (indicating that data is being

transmitted over the serial interface).

SoM hardware details

The system-on-module (SoM) included with the Dev Board is based on NXP's iMX8M system-on-chip (SoC) and

contains all the essential system hardware, including the Edge TPU and Wi-Fi/Bluetooth radios. It is attached to the Dev

Board baseboard with three 100-pin board-to-board connectors.

Note: If you are interested in using the Coral SoM with custom PCB hardware (instead of the baseboard

provided with the Dev Board), you can learn more about the standalone SoM in the Coral SoM datasheet.

Figure 9 shows the dimensions of the SoM.

Version 1.6 (July 2020)