Datasheet of CM4 Sensing V1.2

EDA Technology Co.,LTD– Electronics Development Accelerator

3.2.1 SIM Slot

Users can choose whether it contains 4G module. We have configured the EC20 full netcom 4G module

in China, which supports mobile, China Unicom and telecom network standards, with optional GPS

support.

The 4G module is extended by USB 2.0, and supports one Nano-SIM card.

3.2.2 SD Slot

CM4 Sensing supports dual storage scheme, eMMC+micro SD card. eMMC is used for the main file

system, and micro SD card can be used for expanding data storage. Users can choose SD cards with

different capacities to store data according to application requirements. Compared with the built-in

eMMC memory, SD cards have larger capacity and lower cost. Users can use eMMC on CM4 to store

system code and SD card to store application data.

tip：Micro SD card can only be used for extended storage and cannot be boot from SD card.