SunFounder Thales Kit, Manual, Page: 108 / 167

SunFounder Thales Kit for Raspberry Pi Pico, Release 1.0
(continued from previous page)
y = 0
if y > 1 :
y = 1
# Move cursor
addr = 0x80 + 0x40
*
y + x
self . send_command(addr)
for chr in str :
self . send_data( ord ( chr ))
def message ( self , text):
#print("message: %s"%text)
for char in text:
if
char == '
\n
' :
self . send_command( 0xC0 ) # next line
else :
self . send_data( ord (char))
Then, create a new file, and call the lcd1602 library stored before in this file.
from lcd1602 import LCD
import utime
lcd = LCD()
string = " Hello! \n "
lcd . message(string)
utime . sleep( 2 )
string = " Sunfounder!"
lcd . message(string)
utime . sleep( 2 )
lcd . clear()
After the program runs, you will be able to see two lines of text appear on the LCD in turn, and then disappear.
How it works?
In the lcd1602 library, we integrate the relevant functions of lcd1602 into the LCD class.
Import lcd1602 library
from lcd1602 import LCD
Declare an object of the LCD class and name it lcd.
lcd = LCD()
This statement will display the text on the LCD. It should be noted that the argument must be a string type. If we want
to pass an integer or float, we must use the forced conversion statement
str()
.
lcd . message(string)
If you call this statement multiple times, lcd will superimpose the texts. This requires the use of the following statement
to clear the display.
104 Chapter 3. For MicroPython User