UV sensor

UV sensor模組

參考

https://electronics.stackexchange.com/questions/345984/how-could-i-amplify-the-output-from-this-uv-photodiode-sensor

UV Index

參考 https://wiki.dfrobot.com/UV_Sensor__SKU_TOY0044_

電路圖

程式列表

Blockly

Python

from machine import Pin,ADC

from machine import Switch

import utime

from machine import RTC

x = None

sensorSum = None

UV_Index = None

sensorValue = None

sensorVoltage = None

adc0 = None

KeyA = None

rtc = None

"""描述此函式...

"""

def GetIndex(x):

global sensorSum, UV_Index, sensorValue, sensorVoltage

if sensorVoltage < 50:

UV_Index = 0

elif sensorVoltage < 227:

UV_Index = 1

elif sensorVoltage < 318:

UV_Index = 2

elif sensorVoltage < 408:

UV_Index = 3

elif sensorVoltage < 503:

UV_Index = 4

elif sensorVoltage < 606:

UV_Index = 5

elif sensorVoltage < 696:

UV_Index = 6

elif sensorVoltage < 795:

UV_Index = 7

elif sensorVoltage < 881:

UV_Index = 8

elif sensorVoltage < 976:

UV_Index = 9

elif sensorVoltage < 1079:

UV_Index = 10

else:

UV_Index = 11

adc0 = ADC(Pin.board.AIN0)

KeyA = Switch('keya')

rtc = RTC()

while True:

sensorSum = 0

for count in range(16):

sensorValue = adc0.read()

sensorSum = sensorSum + sensorValue

sensorValue = sensorSum / 4

sensorVoltage = (sensorValue * 3300) / 16384

GetIndex(None)

print(''.join([str(x2) for x2 in ['sensor reading = ', sensorValue, ', sensor voltage = ', sensorVoltage, 'mV', ', UV index = ', UV_Index]]))

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

break

utime.sleep_ms( 500 )

執行結果