Quick User Guide

Interfaces Introduction

_images/assembling16.png _images/assembling17.png

Power on the RasPad

Now, insert the SD card firmly.


The card slot is set on the back cover and it’s in snap style. Therefore before opening or closing the back cover, you need to take out the microSD card to avoid damaging your microSD card and the internal button board.


Take out the power adapter and power cable.


Insert one side of the power cable into the power adapter, and the other side to a socket. In case of any accident, children should be accompanied by parents.


Plug the power adapter into the RasPad power port.


At this time, one of the green LED might be blinking and the charging icon will appear, saying RasPad is charging.


The number of lit green LEDs indicates the percentage of battery. When only one indicator LED is lit (33%), a low voltage warning icon will appear, indicating that RasPad needs to be charged.


The power button is on the right side.

Press and hold for over 3 seconds to power on/off the RasPad and short press to turn on/off the screen.


Now press and hold the power button for over 3 seconds and you’ll see the RasPad is booting up.


Volume and Brightness Settings

Now, the red LED is lit up, that is to say the RasPad is on.


At this point, the RasPad should be in the boot-up state. If the screen is too bright, short press the brightness button to enter the brightness adjustment page.


A brightness adjustment bar will appear on the screen.


The brightness can be adjusted via these two buttons.


After three seconds without operation, the brightness bar on the screen automatically disappears. The brightness should not be too high or too low, otherwise it will be harmful to the eyes.


If you adjust the volume, press the volume button once to enter the volume adjustment page.


Then press these two buttons to adjust volume.


Install Virtual Keyboard on RasPad

When you use a touch panel such as RasPad, you can connect an external keyboard to help you do a text input operation, but it is best to install a virtual keyboard.

Install the required software with the following command.

sudo apt install onboard
sudo apt install at-spi2-core

In order to make the virtual keyboard have a better effect, you need to do further settings.

Click the Raspberry Pi icon in the upper left corner and select Preferences -> Onboard Settings.


In the General option, check the following 2 items. When you check Automatically display when editing text, you will be prompted to reboot, you can reboot after all settings are complete.


In the Window option, check Dock to screen edge.


And in Auto-show option, check Auto-show when editing text again.


The next 2 items are optional, the ones checked in the picture are recommended by us, you can also check other ones.

In Layout option, Small is recommanded.


In Theme option, DarkRoom is recommanded.


After the setting is complete, restart RasPad. Every time you restart RasPad, you need to click General Access -> Onboard to enable the virtual keyboard.


Now you can use this keyboard to edit your files or codes.


Right Click on RasPad

Touchscreen tablets and displays make it easy for you to perform simple navigation tasks with your fingers or stylus, but at some point, you may want to use right-click commands to quickly access context-specific shortcuts.

Here we use evdev-rce to make RasPad’s right-click command still available.

Enter the following command to install the required software.

sudo apt install build-essential libevdev2 libevdev-dev
git clone 'https://github.com/PeterCxy/evdev-right-click-emulation.git'
cd 'evdev-right-click-emulation'

Enter the following command to build.

make all

Copy the file to the /usr directory.

sudo cp 'out/evdev-rce' '/usr/local/bin/'

Make it executable.

sudo chmod +x '/usr/local/bin/evdev-rce'

Modify the /etc/rc.local file to enable boot-up.

sudo nano /etc/rc.local

After entering rc.local, add the following command before exit 0.

sudo /usr/local/bin/evdev-rce &

After restarting, you can long press on the RasPad desktop and see if the right click function appears.

sudo reboot

Connect Headphones or Other Screens

Plug in the headphone if you need.


The headphone volume can only be adjusted on the screen, so you need to enter the RPi desktop firstly through tapping the top left menu icon.


Just tap the speaker icon, and the volume control box will appear. Slide the volume cursor to volume up or down.


When wearing headphones, pay attention not to adjust the volume too much high, in case of “hard of hearing”.


If you want to set up your dual monitors, you can add a monitor via HDMI cable and plug a mouse and a keyboard.


Now, you can control your computer on RasPad.