Enlarged TEXT on SSD1306

# Enlarged Text demo on SSD1306 OLED display
# Tony Goodhew (Tonygo2) 5 July 2026
# Method:
#  Draws normal characters in 'scratch area'
#  at bottom of screen. Then enlarges it
#  at the required position. Small text is then
#  removed. Avoid bottom 8 lines of screen until
#  the end of screen drawing.

from machine import Pin,I2C
from ssd1306 import SSD1306_I2C

i2c = I2C(sda=0,scl=1)

#Set up OLED display
WIDTH  = 128          # oled display width
HEIGHT = 64
oled = SSD1306_I2C(WIDTH,HEIGHT,i2c)
oled.fill(0)
oled.show()

# Procedure to draw enlarged text on SSD1306
# using the built-in font
def xtext(string,xx,yy,size):
    ln = len(string)
    oled.text(string,0,56,1) # Normal size string
    for yq in range(8):
        for xq in range(ln*8):
            px = oled.pixel(0+xq,56+yq) # Get pixel value
            if px == 1:
                oled.rect(xx+xq*size,yy+yq*size,size,size,1,1)
    oled.rect(0,56,ln*8,8,0,1) # Clear temp text area

xtext("Tony",17,7,3)
xtext("0123456",8,40,2)
oled.rect(0,0,128,64,1)
oled.show()