NEC MPI4E Raspberry Pi Compute Module Setup Guide

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• Additional configuration may be required in the OS and application being used.

5.7 To test support for the IR Receiver by outputting raw data

Make sure lirc is installed using:

sudo apt install lirc

Output raw data from the IR receiver as follows:

sudo /etc/init.d/lirc stop

mode2 -d /dev/lirc0

Point an IR Remote at the IR sensor on the display and press some buttons. Output should be seen

showing the raw pulses received.

5.8 To enable the serial port (UART) to the display and allowing

application access

To enable the UART communications with the display so that applications on the Compute Module can

communicate with the display:

1. On the NEC display navigate to the SLOT menu on the OSD.

2. Select the ADVANCED SETTINGS options after COMPUTE MODULE.

3. Confirm that the MONITOR CONTROL is set to ENABLE.

4. Edit the config.txt file to allow application access to the serial port, by editing to either add or

change so there is a line with:

enable_uart=1

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NEC MPI4E RaspberryPi 4 System on a Chip Solution