Datasheet of CM4 Sensing V1.2

EDA Technology Co.,LTD– Electronics Development Accelerator

16

NC

43

GND

17

NC

44

NC

18

GND

45

NC

19

NC

46

NC

20

NC

47

NC

21

GND

48

NC

22

GPIO10/PCIE_nRST

49

NC

23

PCIE_RXN

50

GND

24

3V3

51

NC

25

PCIE_RXP

52

3V3

26

GND

53

GND

27

GND

54

GND

4.3 RTC

CM4 Sensing is integrated with RTC. For the version sold in China, we will install CR1220 button cell

(RTC backup power supply) by default when shipping. In this way, the system can be guaranteed to

have an uninterrupted and reliable clock, which is not affected by factors such as equipment power

down.

4.4 Buzzer

CM4 Sensing has a buzzer, which is controlled by GPIO11, enabled at high level and disabled at low

level.

4.5 HDMI DSI

J8 is MIPI DSI interface, which uses DSI1 signals of 2-lane on CM4, and can be used with Raspberry Pi

official 7-inch touch screen.

Pin

Definition

Pin

Definition