Raspberry-Pi-400

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)

·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.

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.;

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

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 )

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.

TAG： ESP32 P4 Development Board 7inch Display 7 inch TouchScreen Onboard ESP32-C6/Camera-Port/Speaker-Port RP2040 LoRa-HF Windows Environment User Guide Pi5 Pure- CPU Monitor Display STLINK JETSON NANO MINI ESP32 S3 LCD Camera Development Board 2 inch Display QMI8658 Sensor / Battery Port LVGL/HMI For Arduino ESP32 C3 MINI TV ESP32-P4-ETH RJ45 POE DSI/MIPI 10.1 inch LCD Display Touchscreen/CSI Camera/Audio Speaker AI Deepseek Pi5 Raspberry Pi 5 PCIe USB HUB 3.2 Gen1 HAT+ High Speed Pi5 Raspberry Pi Thermal imaging camera ESP32-S3 Sipeed NanoCluster Mini Cluster Board mini data center For Raspberry Pi CM45 / Computer /LM3H /M4N Jetson 64MP Camera Jetson Nano 3G module Jetson Nano Heatsink ESP32 S3 Development Board 2.8 inch B LCD 2.8inch Display 480x640 TouchScreen QMI8658 Sensor / Battery Port LVGL/HMI For Arduino Raspberry Pi 3 display HAT