60
12048231 Rev. 00 (Draft)
DATA MODUL AG | www.data-modul.com
J51
Pin
Signal / Function
Pin Type
Signal Description
30
GPIO5 / PWM_OUT
IO (OD, 3.3V)
GPIO signal 5 from the SMARC embedded board. Default
direction is output.
Alternate Function: PWM_OUT from board controller (not
used)
31
GPIO6 / TACH_IN
IO (OD, 3.3V)
GPIO signal 6 from the SMARC embedded board. Default
direction is output.
Alternate Function: FAN Tach-In from/to SMARC
module.
32
GPIO7
IO (OD, 3.3V)
GPIO signal 7 from the SMARC embedded board. Default
direction is output.
33
MCU_USART1_RXD
IO (OD, 3.3V)
Serial data input to UART of the board controller STM32.
Pull-up 47kOhm is present on CB. Internal use only.
34
MCU_USART1_TXD
IO (OD, 3.3V)
Serial data output from UART of the board controller.
Internal use only.
35
NC
NC
not connected
36
NC
NC
not connected
37
NC
NC
not connected
38
NC
NC
not connected
39
NC
NC
not connected
40
NC
NC
not connected
4.30. Piezo-Speaker (Buzzer)
Reference Designator:
– LS1
Description
The carrier board provides integrated Piezo Speaker, sound output at 10 cm: min. 85 dB
Interface used
GPIO3 of the SMARC module
Supplied by 5,0 V S0 voltage (V_5V0_S0)
Connector drawing and contact-numbering scheme
Figure 39 Piezo-Speaker
– LS1
