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Interfacing pH Sensor with Raspberry Pi 3 ๐ŸŒฟ

Interfacing pH Sensor with Raspberry Pi 3 ๐ŸŒฟ

Interfacing pH Sensor with Raspberry Pi 3 ๐ŸŒฟ

pH sensors help us monitor the acidity or alkalinity of water and soil. This guide explains how to interface a pH sensor (via MCP3008 ADC) with Raspberry Pi 3 for real-time monitoring. ๐Ÿงช๐ŸŒฑ

๐Ÿ”ง Components Required

ComponentQuantity
Raspberry Pi 31
pH Sensor1
MCP3008 ADC1
Jumper WiresSeveral
Breadboard1

๐Ÿ”Œ Pin Connections

MCP3008 PinConnectionRaspberry Pi Pin
VDD, VREF3.3VPin 1
AGND, DGNDGNDPin 6
CH0pH Sensor Output-
DINMOSIGPIO10 (Pin 19)
DOUTMISOGPIO9 (Pin 21)
CLKClockGPIO11 (Pin 23)
CSChip SelectGPIO8 (Pin 24)
pH Sensor with Raspberry Pi 3

Figure: pH Sensor interfaced with Raspberry Pi 3 using MCP3008

๐Ÿ’ป 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 def convert_to_ph(adc_value): voltage = (adc_value * 3.3) / 1023 ph = 7 + ((2.5 - voltage) / 0.18) return round(ph, 2) while True: value = read_channel(0) ph = convert_to_ph(value) print(f"pH Value: {ph}") time.sleep(2)

๐Ÿ“Œ Summary

This setup enables Raspberry Pi 3 to read pH values via ADC. It is useful in hydroponics, soil science, and water quality monitoring. ๐ŸŒพ๐Ÿ’ง

Raspberry Pi 3 เคธเคน pH เคธेเคจ्เคธเคฐ เค‡ंเคŸเคฐเคซेเคธ เค•เคฐเคฃे ๐ŸŒฟ (เคฎเคฐाเค ी)

pH เคธेเคจ्เคธเคฐ เคฎाเคคी เค•िंเคตा เคชाเคฃ्เคฏाเคšा เค†เคฎ्เคฒเคคा/เค•्เคทाเคฐเคคा เคฎोเคœเคคो. Raspberry Pi 3 เคธोเคฌเคค MCP3008 เคตाเคชเคฐूเคจ เคนे เค•เคธे เคœोเคกाเคฏเคšे เคคे เคชाเคนूเคฏा. ๐Ÿงช

๐Ÿ”ง เคฒाเค—เคฃाเคฐे เคธाเคนिเคค्เคฏ

เคธाเคนिเคค्เคฏเคช्เคฐเคฎाเคฃ
Raspberry Pi 31
pH เคธेเคจ्เคธเคฐ1
MCP3008 ADC1
เคœंเคชเคฐ เคตाเคฏเคฐเค•ाเคนी
เคฌ्เคฐेเคกเคฌोเคฐ्เคก1

๐Ÿ”Œ เคชिเคจ เคœोเคกเคฃी

MCP3008 เคชिเคจเคœोเคกเคฃीRaspberry Pi เคชिเคจ
VDD, VREF3.3Vเคชिเคจ 1
AGND, DGNDGNDเคชिเคจ 6
CH0pH เคธेเคจ्เคธเคฐ เค†เค‰เคŸเคชुเคŸ-
DINMOSIGPIO10 (เคชिเคจ 19)
DOUTMISOGPIO9 (เคชिเคจ 21)
CLKเค•्เคฒॉเค•GPIO11 (เคชिเคจ 23)
CSเคšिเคช เคธिเคฒेเค•्เคŸGPIO8 (เคชिเคจ 24)

๐Ÿ’ป Python เค•ोเคก

เค–ाเคฒीเคฒ เค•ोเคก เคตाเคชเคฐूเคจ เค†เคชเคฃ pH เคธेเคจ्เคธเคฐเคšे เคฐिเค…เคฒ เคŸाเค‡เคฎ เคฎूเคฒ्เคฏ เคตाเคšू เคถเค•เคคो:

# เคตเคฐीเคฒ เค‡ंเค—्เคฐเคœी เค•ोเคกเคšा เค‰เคชเคฏोเค— เคฏेเคฅे เคฆेเค–ीเคฒ เค•เคฐू เคถเค•เคคा.

๐Ÿ“Œ เคธाเคฐांเคถ

เคนे เคธेเคŸเค…เคช เคตाเคชเคฐूเคจ เค†เคชเคฃ Raspberry Pi 3 เคธเคน pH เคฎूเคฒ्เคฏ เคฎॉเคจिเคŸเคฐ เค•เคฐू เคถเค•เคคो. เคนे เคœเคฒ เค—ुเคฃเคตเคค्เคคा, เคถेเคคी เค†เคฃि เคช्เคฐเคฏोเค—เคถाเคณा เคตाเคชเคฐाเคธाเค ी เค‰เคชเคฏुเค•्เคค เค†เคนे. ๐ŸŒฟ

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