Keyestudio 4WD Manual page 155

www.keyestudio.com
When it is kept upright （make its logo above the LED dot matrix）, the
number 2 shows.
When it is kept upside down( make its logo below the LED dot matrix) , it
shows as below.
When it is placed still on the desk, showing its front side, the number 4
appears.
When it is placed still on the desk, showing its back side, the number 5
exhibits.
When the board is tilted to the left , the LED dot matrix shows the number
155