Raspberry-Pi-400

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Raspberry-Pi-400
Raspberry Pi 400 Kit
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Primary Attribute
Category: Raspberry Pi
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Brand:
Website
International: Website
Chinese: 中文官网
Onboard Interfaces
Related Products

Features

  • Raspberry Pi 400 incorporates a purpose-built board based on Raspberry Pi 4. portable. You can use it as a mini-PC by combining a Mouse and display.
  • CPU:1.8GHz ARM Cortex-A72(Pi4为1.5GHz)
  • RAM:4GB LPDDR4-3200
  • Connectivity:
    • Dual-band (2.4GHz and 5.0GHz) IEEE 802.11b/g/n/ac wireless LAN;
    • Bluetooth 5.0, BLE;
    • Gigabit Ethernet;
    • 2 × USB 3.0 and 1 × USB 2.0 ports;
  • Video&Sound:2 × micro HDMI ports (supports up to 4Kp60)
  • DIMENSIONS: 286 mm × 122 mm × 23 mm (maximum)

Interfaces

Raspberry-Pi-400-details-15.jpg

·Type-C Interface: Power interface, require 5V/3A power adapter.

·40PIN GPIO: Standart 40PIn GPIO for accessories.

·Micro SD card slot: For operating system and data storage

·Micro HDMI Interface: Support dual-displays 4K video output.

Raspberry-Pi-400-3.jpeg

Question:
How to configure the touchscreen with dual dispalys?
Answer:

1.Open a terminal and input command: xrandr, and check the HDMI-ID of main display.;

Pi4-conf-touch-1.png

2.Open a terminal and input command: xinput, to check the touch ID of main display;

Pi4-conf-touch-2.png

3.Run the command: xinput map-to-output <touch ID> <HDMI-ID>

(The ID value should be changed according to the actual ID checked. for example: xinput map-to-output 7 HDMI-1 )

Pi4-conf-touch-3.png

4.If you want to configure the touchscren and save the setting, you have to set it to auto start. sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

Add the line: xinput map-to-output 7 HDMI-1

Note that You need to change the ID and reboot Raspberry Pi.

Pi4-auto-start-4.png





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