Displaying Text
English strings can be displayed on the KOI screen.
Displaying Text
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Search "KOI" in the search bar.
Or copy and paste the following link to the search bar.
https://github.com/KittenBot/pxt-koi
Blocks for displaying text:
We can add a delay to specify the duration shown.
The coordinates refer to the top left corner of the text. See figure below for explaination of coordinates.
Sample Program:
Program
Download the program to Micro:bit.
Pressing button A on the Micro:bit to display “Kittenbot” on the screen. Pressing button B to display “KOI” for 2 seconds.
Sample Code
Displaying Text (Extension0.5.7)
Extension Version and Updates
There may be updates to extensions periodically, please refer to the following link to update/downgrade your extension.
FAQ
1: There is no reaction after pressing the buttons on the Micro:bit.
· A: This is because KOI has a longer boot time than Micro:bit. When the power is turned on, Micro:bit has already ran the code for KOI initialization before KOI is ready.
· Solution: Reset your Micro:bit after KOI has been turned on. (The trick is to let KOI power on completely before initialization.)
2: Does KOI work with 3V input?
· A: No, KOI only works with 5V.
3: Why does the text disappear after a short while?
· A: Since the dislay of the KOI keeps refreshing, the text cannot persist on the screen for a long time. For displaying persisting text, considering connecting an I2C OLED screen.
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