SunFounder Thales Kit, Руководство пользователя, Страница: 109 / 167

SunFounder Thales Kit for Raspberry Pi Pico, Release 1.0
lcd . clear()
What more?
We can combine thermistor and I2C LCD1602 to make a room temperature meter.
from lcd1602 import LCD
import machine
import utime
import math
thermistor = machine . ADC( 28 )
lcd = LCD()
while True :
temperature_value = thermistor . read_u16()
Vr = 3.3
*
float (temperature_value) / 65535
Rt = 10000
*
Vr / ( 3.3 - Vr)
temp = 1 / (((math . log(Rt / 10000 )) / 3950 ) + ( 1 / ( 273.15 + 25 )))
Cel = temp - 273.15
#Fah = Cel * 1.8 + 32
#print ('Celsius: %.2f C
Fahrenheit: %.2f F' % (Cel, Fah))
#utime.sleep_ms(200)
string = " Temperature is \n " + str ( '{:.2f}' . format(Cel)) + " C"
lcd . message(string)
utime . sleep( 1 )
lcd . clear()
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