Published December 31, 2019

Smart Irrigation System (using M5STACK)

This project is a machine that will water your plants for you without any human input.

IntermediateShowcase (no instructions)1,738

Things used in this project

Hardware components

SparkFun Soil Moisture Sensor (with Screw Terminals)

AC/DC Adapter

Pump (for water)

Light Pipe, 12.7 mm

Relay (generic)

Software apps and online services

Python

Hand tools and fabrication machines

Soldering iron (generic)

Story

My project is a smart irrigation system that uses the M5STACK to function.

It has a moisture sensor that should be put in the soil of the plant, and this is connected to the M5STACK which is connected to a relay which is connected to a Pb.HUB which is connected to a Motor which is connected to a pipe which is connected to an AC/DC Adapter.

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Circuitry

After the moisture sensor is put in the soil, it will send the M5STACK a signal and tell it whether the soil has enough moisture or not.

If it has enough moisture, the M5STACK will wait 10 mins and check again if there is enough moisture in the soil.

If the soil doesn’t have enough moisture, the M5STACK will start the pump for 250 ms and let the water enter the soil through a pipe.

Python Code

from m5stack import *
from m5ui import *
from uiflow import *
import machine
from easyIO import *
import unit
 
setScreenColor(0x000000)
pbhub1 = unit.get(unit.PBHUB, unit.PORTA)
 
 
 
 
title0 = M5Title(title="Smart Plant", x=3 , fgcolor=0xFFFFFF, bgcolor=0x0b9bd3)
label0 = M5TextBox(77, 28, "Smart Plant", lcd.FONT_Comic,0xffffff, rotate=0)
label1 = M5TextBox(15, 70, "This machine will", lcd.FONT_Comic,0x0aea47, rotate=0)
label2 = M5TextBox(19, 102, "help you take care of", lcd.FONT_Comic,0x0aea47, rotate=0)
num = M5TextBox(5, 208, "getting...", lcd.FONT_Comic,0x04b4d5, rotate=0)
label3 = M5TextBox(17, 134, "your plants", lcd.FONT_Comic,0x0aea47, rotate=0)
 
 
while True:
 pin0 = machine.Pin(26, mode=machine.Pin.IN, pull=machine.Pin.PULL_UP)
 if (digitalRead(26)) == True:
   num.setText('Water not present')
 else:
   num.setText('Water present')
 if (digitalRead(26)) == False:
   wait_ms(500)
 if (digitalRead(26)) == True:
   pbhub1.digitalWrite(0, 0, 0)
   wait_ms(325)
   pbhub1.digitalWrite(0, 0, 1)
   wait(60)
 wait_ms(2)