poor man's weather station with rpi pico.

pmws.py

from machine import Pin, SPI, ADC
import ssd1306
import utime

spi = SPI(0,100_000,polarity=1,phase=1)
dc = Pin(4, Pin.OUT)
res = Pin(3, Pin.OUT)
cs = Pin(5, Pin.OUT)
oled = ssd1306.SSD1306_SPI(128,64,spi,dc,res,cs,False)

sensor_temp = ADC(4)
conversion_factor = 3.3/(65535)

while True:
    reading = sensor_temp.read_u16()*conversion_factor
    temperature = 27-(reading-0.706)/0.001721
    oled.fill(0)
    oled.show()
    utime.sleep(0.5)
    oled.text(str(int(temperature))+" C", 0, 0)
    oled.show()
    utime.sleep(2)