from machine import Pin, ADC
from utime import sleep
from math import log
import json 
import random

beta = 3950

def convert_analogue_to_temperature(analogue_value, unit="°C"):
  print('analogue value:', analogue_value)
  if unit == "°C":
    max_value = 65535
    celsius = 1 / (log(1 / (max_value / int(analogue_value) - 1)) / beta + 1.0 / 298.15) - 273.15
    return celsius


analogue_output = Pin(2, Pin.IN, Pin.PULL_UP)
while True:
  print('the value?',analogue_output.value())
  adc = ADC(analogue_output)
  # with open('diagram.json','w') as file:
  #   config = json.load(file)
  #   new_temp = random.random(1000)
  #   print('new temp: ',new_temp)
  #   config['parts'][3]['attrs']['temperature'] = new_temp
  #   json.dump(config, indent=4)

  print(f'temperature reading is {convert_analogue_to_temperature(adc.read_u16())}°C')
  sleep(2)