13.3inch PiPad C4
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Introduction
This is a 13.3-inch touch all-in-one computer with built-in Raspberry Pi CM4, which can browse web pages, play small games, etc., 1920x1080 HD resolution, with toughened glass capacitive touch panel.
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Features
- 13.3inch IPS screen,1920x1080 high resolution
- Embed Raspberry Pi CM4 as controller, quad-core 64-bit Cortext-A72 [email protected], Dual-band WiFi, Bluetooth5.0
- Toughened glass capacitive touch panel, 6H hardness, supports up to 10-points touch
- Embedded ferrite Hi-Fi speaker
- Embedded Microphone And Speaker
- 75x75mm spacing mounting holes (M4 screw hole) for general wall mount
- Comes with 75° tilt angle stand
Difference between Magic mirror and Pipad
The only difference between the Magic mirror and the Pipad is that the Magic mirror use a one-way mirror and the Pipad use Toughened Glass
Write Raspberry Pi OS
- Download the lasted Raspberry Pi OS image from the Rasberry Pi website and write it to an empty micro SD card.
- Create a new Txt file under the BOOT directory of the micro SD card and name it SSH.
- Modify the config.txt file which is located in the BOOT directory, and add the following lines to the config.txt file.
hdmi_group=2 hdmi_mode=82 hdmi_cvt 1920 1080 60 6 0 0 0
- Save and insert the micro SD card into Raspberry Pi.
- Connect the Magic mirror to the network and power on Raspberry Pi.
- After booting, you can access Raspberry Pi via SSH/VNC, or directly connect the keyboard and mouse.
Check the USB Audio Card
- Test the sound output device:
aplay -l
- Test the sound input device:
arecord -l
USB2.0
To reduce consumption, USB interfaces are disabled in CM4 by default. If you need to use USB ports, please add the following line to the config.txt file.
dtoverlay=dwc2,dr_mode=host
Then reboot the CM4. If you use the newest Bullseye image, the USB2.0 is set to OTG mode by default and occurs the error in CM4:
config failed, hub doesn't have any ports! (err -19)
To remove the errors, you can remove the line otg_mode=1 from the config.txt file and add the line:
dtoverlay=dwc2,dr_mode=host
Kepp Display Always On
- Modify lightdm.conf.
sudo nano /etc/lightdm/lightdm.conf
- Find the line "Xserver-command" below the [SeatDefaults] section and change it from:
#xserver-command=X
to
xserver-command=X -s 0 -dpms
- -s # – set screen saver not enabled.
- dpms turn off power saving management.
- Then save and reboot:
sudo reboot
RS232
In /boot/config.txt, add dtoverlay=uart3.
sudo nano /boot/config.txt dtoverlay=uart3 #device name /dev/ttyAMA1
RS485
Open the Raspberry Pi terminal and enter the following command to access the configuration screen.
sudo raspi-config #Select Interfacing Options -> Serial, disable shell visit, and enable hardware UART port. #Device name: /dev/ttyS0
Keys Description
- 1: Open or Close LCD display. If you don't need the LCD for a long time, you can use this button to reduce consumption.
- 2: Direction button.
- 3: "OK" function.
- 4: Open the menu and the "Return" function.