Loading ...
Loading ...
Loading ...
©2021 Sharp NEC Display Solutions, Ltd. Page 9 of 86
• CEC support between the display and the Raspberry Pi Compute Module.
o Facilitates the use of the display’s IR Remote buttons to control the basic navigation
functions of compatible software, such as media players.
• Internal serial connection between the display and the Raspberry Pi Compute Module
o Allows full control and monitoring of the display from the Compute Module.
o This uses GPIO 14 & 15 (UART0) on the Raspberry Pi Compute Module.
o A Python based SDK is available from Sharp NEC Display Solutions for easy software
development. See Python Based NEC PD SDK on page 65.
• Real Time Clock support via the display’s internal clock
o The display’s internal Real Time Clock can be read and set via the Compute Module,
using the internal serial connection and the Python based SDK.
o This can be used to set the system time when no network connection is available.
• Shutdown signal support
o The display can signal to the Operating System, running on the Raspberry Pi Compute
Module, that the power is about to turn off so the software and OS can shutdown
gracefully.
o This uses GPIO 23 on the Raspberry Pi Compute Module.
• Full power control
o Power for the Compute Module can be configured to automatically turn on when the
display is turned on from a standby mode, or it can be turned on separately via the
display’s OSD, HTTP interface, or network commands.
o By default, the Compute Module will remain powered on even when the display goes
into standby mode and can be turned off separately via the display’s OSD, HTTP
interface, or network commands.
The display can be configured to turn off the Compute Module power with the display
power.
• Watchdog timer support
o Can be used to reset a locked CPU by automatically restarting the Compute Module. A
restart will occur if no periodic reset signal is received from the Compute Module within
a certain time period.
• Built in touchscreen support
o For display models integrated with an optional 3
rd
party touchscreen, the USB touch
device will appear as a standard USB HID (Human Interface Device) device to the
Compute Module.
• Wi-Fi and Bluetooth support
o See the following section About Wireless Connectivity (Wi-Fi and Bluetooth) on page 11
for information about the wireless connectivity.
• Cooling
o The large heatsink combined with cooling fans integrated within the display simplifies
heat management.
Loading ...
Loading ...
Loading ...