負溫度係數熱敏電阻(NTC)感測器

模組簡介

KY-013 Analog temperature sensor module

(參考https://easyeda.com/adrirobot/KY-013-Analog-temperature-sensor-module)

電路圖

Pycode程式列表

Blockly

Python

"""

"""

EPY NTC(KY-013 Temperature-Sensor module)

-----------------

AIN0 S

3V3 VCC

GND GND

"""

from machine import LED

from machine import Pin,ADC

import math

from machine import Switch

import utime

from machine import RTC

x = None

Temperature = None

Val = None

temp0 = None

rtc = None

adc0 = None

KeyA = None

ledR = None

ledY = None

ledG = None

"""描述此函式...

"""

def Display(x):

global Temperature, Val, temp0

if Temperature > 30:

ledR.on()

ledY.off()

ledG.off()

elif Temperature < 20:

ledR.off()

ledY.on()

ledG.off()

else:

ledR.off()

ledY.off()

ledG.on()

"""描述此函式...

"""

def calcTemp():

global x, Temperature, Val, temp0

Temperature = math.log(10000 * (4095 / Val - 1))

Temperature = 1 / (0.001129148 + (0.000234125 + 8.76741e-8 * (Temperature * Temperature)) * Temperature)

Temperature = Temperature - 273.15

return Temperature

rtc = RTC()

adc0 = ADC(Pin.board.AIN0)

KeyA = Switch('keya')

ledR = LED('ledr')

ledY = LED('ledy')

ledG = LED('ledg')

while True:

Val = adc0.read()

Val = 4095 - Val

temp0 = round(calcTemp())

print(''.join([str(x2) for x2 in ['Current temperature is:', temp0, "'C"]]))

Display(temp0)

if (KeyA.value()) == True:

break

utime.sleep_ms( 500 )

執行結果