from machine import Pin, ADC
import utime
import math

# Set the constant for the ADC limit value
MAX_INPUT = math.pow(2, 16) - 1

# Set the ratio of the Pico input voltage to the
# maximum possible ADC voltage reading from the
# temperature sensor
VOLT_FACTOR = 3.3 / MAX_INPUT

# Read the voltage from the 'temperature sensor. On a real Pico
# this signal will come from the internal SOC temperature sensor
# on channel 4. For this simulation we are using a potentiometer
# on channel 2.
temp_adc = ADC(2)

# Read the voltage from the ADC, convert to
# a temperature in degrees Celsius, print that
# temperature to the console, and repeat
# every second
while True:
    adc_voltage = temp_adc.read_u16()
    temp_voltage = adc_voltage * VOLT_FACTOR
    chip_temp = 27 - ((temp_voltage - 0.706) / 0.001721)
 
    print(f"ADC Voltage: {adc_voltage}")
    print(f"ADC Temp: {temp_voltage}")
    print(f"Current Chip Temperature: {chip_temp}")
    print("")

    utime.sleep(1)