How to use the Nokia 5110 screen with the Raspberry Pi Pico

    This article assumes you have CircuitPython and a basic understanding of the programming language, as well as the necessary hardware.
    

Nokia 5110	Pins
Gnd	Gnd
Bl	3V3
Vcc	3V3
Clk	18GP
Dir	19GP
DC	20GP
CE	16GP
RST	17GP

After you've done all of this, the circuit should now work. To get it working you'll need this library:
    

adafruit_pcd8544.py

You may also need this file:
    

framebuf.py

And now, the simplest part, coding!
    

import board
import busio
import digitalio
import adafruit_pcd8544
import microcontroller
import time
      
spi = busio.SPI(clock=board.GP18, MOSI=board.GP19)

dc = digitalio.DigitalInOut(board.GP20)
cs = digitalio.DigitalInOut(board.GP16)
reset = digitalio.DigitalInOut(board.GP17)

display = adafruit_pcd8544.PCD8544(spi, dc, cs, reset)

display.bias = 2
display.contrast = 70

while True:
    display.fill(0)
    display.pixel(x,y,1) # the available functions are on the framebuf documentation
    time.sleep(0.5)
    display.show()
    

Additional file to get the text working:
  

font5x8.bin