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Interfacing Raspberry Pi 3 with Soil Moisture Sensor ๐ŸŒฑ


Interfacing Raspberry Pi 3 with Soil Moisture Sensor ๐ŸŒฑ

๐ŸŽฏ Objective

Use the Soil Moisture Sensor with Raspberry Pi 3 to measure soil humidity levels. This setup is ideal for building smart irrigation systems for gardens and farms. ๐ŸŒพ

๐Ÿงฐ Components Required

ComponentQuantity
Raspberry Pi 31
Soil Moisture Sensor (Analog)1
MCP3008 ADC1
Breadboard1
Jumper WiresAs required

⚡ Circuit Connections

Sensor to MCP3008:

Soil Sensor PinConnect To
VCC3.3V (RPi)
GNDGND (RPi)
Analog OutCH0 of MCP3008

MCP3008 to Raspberry Pi:

MCP3008RPi3 GPIO Pin
VDD, VREF3.3V
AGND, DGNDGND
CLKGPIO11
DOUTGPIO9
DINGPIO10
CSGPIO8

๐Ÿง  Python Code

import spidev
import time

spi = spidev.SpiDev()
spi.open(0, 0)
spi.max_speed_hz = 1350000

def read_channel(channel):
    adc = spi.xfer2([1, (8 + channel) << 4, 0])
    data = ((adc[1] & 3) << 8) + adc[2]
    return data

try:
    while True:
        moisture_level = read_channel(0)
        print("Soil Moisture Level:", moisture_level)
        time.sleep(2)
except KeyboardInterrupt:
    spi.close()

๐Ÿ“Š Output

  • Continuously prints soil moisture levels to the console every 2 seconds.
  • Higher value = Dryer soil ๐Ÿ”ฅ
  • Lower value = Wet soil ๐Ÿ’ง

๐Ÿ’ก Applications

  • Smart irrigation systems
  • Automatic watering in gardens and pots
  • Soil monitoring for agriculture

๐ŸŽฏ เค‰เคฆ्เคฆिเคท्เคŸ

Soil Moisture Sensor เค†เคฃि Raspberry Pi 3 เคตाเคชเคฐूเคจ เคœเคฎिเคจीเคคीเคฒ เค“เคฒाเคตा เคคเคชाเคธเคฃे. เคนे เค—ाเคฐ्เคกเคจเคธाเค ी เคธ्เคฎाเคฐ्เคŸ เคตॉเคŸเคฐिंเค— เคธिเคธ्เคŸीเคฎเคธाเค ी เค‰เคชเคฏुเค•्เคค เค†เคนे. ๐ŸŒฟ

๐Ÿงฐ เคฒाเค—เคฃाเคฐे เคธाเคนिเคค्เคฏ

เค˜เคŸเค•เคธंเค–्เคฏा
Raspberry Pi 31
Soil Moisture Sensor (Analog)1
MCP3008 ADC1
เคฌ्เคฐेเคกเคฌोเคฐ्เคก1
เคœंเคชเคฐ เคตाเคฏเคฐเค—เคฐเคœेเคจुเคธाเคฐ

⚡ เคธเคฐ्เค•िเคŸ เค•เคจेเค•्เคถเคจ

เคธेเคจ्เคธเคฐ เคคे MCP3008:

Soil Sensorเค•ुเค े เคœोเคกाเคฏเคšं
VCC3.3V (RPi)
GNDGND (RPi)
Analog OutCH0 (MCP3008)

MCP3008 เคคे เคฐाเคธ्เคชเคฌेเคฐी เคชाเคฏ:

MCP3008RPi3 GPIO
VDD, VREF3.3V
AGND, DGNDGND
CLKGPIO11
DOUTGPIO9
DINGPIO10
CSGPIO8

๐Ÿง  เคชाเค‡เคฅเคจ เค•ोเคก

import spidev
import time

spi = spidev.SpiDev()
spi.open(0, 0)
spi.max_speed_hz = 1350000

def read_channel(channel):
    adc = spi.xfer2([1, (8 + channel) << 4, 0])
    data = ((adc[1] & 3) << 8) + adc[2]
    return data

try:
    while True:
        moisture_level = read_channel(0)
        print("เคฎाเคคीเคคीเคฒ เค“เคฒाเคตा เคชाเคคเคณी:", moisture_level)
        time.sleep(2)
except KeyboardInterrupt:
    spi.close()

๐Ÿ“Š เค†เค‰เคŸเคชुเคŸ

  • เคช्เคฐเคค्เคฏेเค• 2 เคธेเค•ंเคฆांเคจी เคฎाเคคीเคคीเคฒ เค“เคฒाเคตा เค•เคจ्เคธोเคฒเคตเคฐ เคฆเคฐ्เคถเคตเคคो.
  • เคœाเคธ्เคค เคต्เคนॅเคฒ्เคฏू = เค•ोเคฐเคกी เคฎाเคคी ๐Ÿœ️
  • เค•เคฎी เคต्เคนॅเคฒ्เคฏू = เค“เคฒเคธเคฐ เคฎाเคคी ๐ŸŒง️

๐Ÿ’ก เค‰เคชเคฏोเค—

  • เคธ्เคฎाเคฐ्เคŸ เคธिंเคšเคจ เคช्เคฐเคฃाเคฒी
  • เคฌाเค—ेเคฎเคง्เคฏे เค•िंเคตा เค•ुंเคก्เคฏांเคฎเคง्เคฏे เค‘เคŸो เคตॉเคŸเคฐिंเค—
  • เคถेเคคीเคธाเค ी เคฎाเคคी เคคเคชाเคธเคฃी

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