Soil moisture and distance sensor with IR remote control

1/*---Libraries---*/
2#include "IRremote.h" //Library for IR sensor
3#include  <Wire.h> //Library for I2C
4#include <LiquidCrystal_I2C.h> //Library for LCD
5#include  <SR04.h> //Library for distance sensor
6
7/*---PINs declaration---*/
8int  PIN_receiver = 10; //PIN for IR signal
9int PIN_moisture = A0; //PIN for soild  moisture sensor
10//PINs for distance sensor
11int TRIG_PIN = 12;
12int ECHO_PIN  = 11;
13
14/*-----Object declaration-----*/
15IRrecv receiver(PIN_receiver);  //Object for 'IRrecv'
16decode_results result; //Object for 'decode_results'
17LiquidCrystal_I2C  lcd = LiquidCrystal_I2C(0x27, 16, 2); //Object for LCD
18// You may have a different  I2C adress (0x27 is the one that worked for me) for the LCD
19// If this code doesn't  work try to change the I2C adress with this one 0x3F
20// Also you can run a code  to see the adress of your I2C
21// https://create.arduino.cc/projecthub/abdularbi17/how-to-scan-i2c-address-in-arduino-eaadda
22SR04  sr04 = SR04(ECHO_PIN,TRIG_PIN); //Object for distance sensor
23
24void setup()
25{
26  receiver.enableIRIn(); //Open the IR receiver
27  lcd.init(); //Open LCD
28  lcd.backlight(); //'Turn on the light'
29  lcd.setCursor(0, 0); //Setting the  cursor on the first row, first column
30  lcd.print("Moisture->0"); //Showing  the option on LCD, printing 'Moisture->0'
31  lcd.setCursor(0,1); //Setting the  cursor on the second row, first column
32  lcd.print("Distance->1"); //Showing  the option on LCD, printing 'Distance->0'
33  //If you press '0' (zero) you will  get the value of the soil moisture
34  //If you press '1' (one) you will get the  value of the distance till the nearest object
35}
36
37//Function that returns  the number of the pressed button
38int IRCommand() 
39{
40  switch(result.value)
41  {
42    // If the adress is '0xFF6897' the button is '0', 
43    case 0xFF6897:  return 0; // If the adress is '0xFF6897' the button is '0'
44    case 0xFF30CF:  return 1; // If the adress is '0xFF30CF' the button is '1'
45  }
46}
47
48void  loop()
49{
50  if(receiver.decode(&result)) //Checking if a button was pressed
51  {
52    if(IRCommand()==0) //if the pressed button is '0'
53    {
54        lcd.clear();  //clear the text on the LCD
55        lcd.setCursor(0,0);
56        lcd.print("Moisture[%]:");
57        //Reading the soil moisture value from the sensor 
58        //(It can  be between 415 (wet) and 995(dry). I decided to make a map (dictionary) to show  the value as a percentage
59        //The value returned by your sensor may be  different but you can calibrate it by showing the value (returned from the sensor)
60        //on the LCD while you keep your sensor in air (soil moisture->0%) or in  water (soil moisture->100%)
61        int percentage = map(analogRead(PIN_moisture),995,415,0,100);  //995 -> 0%  and 415 -> 100%
62        //Checking if the value is over 100 or under  0 and corecting it (can happen sometimes, the sensor is crappy)
63        if(percentage<0)
64        {
65         percentage  = 0;
66        }
67        if(percentage>100)
68        {
69          percentage = 100;
70        }
71        //Printing the  percentage
72        lcd.setCursor(0, 1);
73        lcd.print(percentage);
74        delay(500);//Take a break ~500ms
75    }
76    if(IRCommand()==1) //if  the pressed button is '1'
77    {
78        lcd.clear(); //clear the text on the  LCD
79        lcd.setCursor(0, 0);
80        lcd.print("Distance[cm]:");
81        lcd.setCursor(0, 1);
82        lcd.print(sr04.Distance()); //Reading and  pinting the distance value from the sensor
83        delay(500); //Take a break  ~500ms
84    }
85    receiver.resume();//Reset the current IR command and waiting  for a new one
86  } 
87}
88

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1/*---Libraries---*/
2#include "IRremote.h" //Library for IR sensor
3#include
4  <Wire.h> //Library for I2C
5#include <LiquidCrystal_I2C.h> //Library for LCD
6#include
7  <SR04.h> //Library for distance sensor
8
9/*---PINs declaration---*/
10int
11  PIN_receiver = 10; //PIN for IR signal
12int PIN_moisture = A0; //PIN for soild
13  moisture sensor
14//PINs for distance sensor
15int TRIG_PIN = 12;
16int ECHO_PIN
17  = 11;
18
19/*-----Object declaration-----*/
20IRrecv receiver(PIN_receiver);
21  //Object for 'IRrecv'
22decode_results result; //Object for 'decode_results'
23LiquidCrystal_I2C
24  lcd = LiquidCrystal_I2C(0x27, 16, 2); //Object for LCD
25// You may have a different
26  I2C adress (0x27 is the one that worked for me) for the LCD
27// If this code doesn't
28  work try to change the I2C adress with this one 0x3F
29// Also you can run a code
30  to see the adress of your I2C
31// https://create.arduino.cc/projecthub/abdularbi17/how-to-scan-i2c-address-in-arduino-eaadda
32SR04
33  sr04 = SR04(ECHO_PIN,TRIG_PIN); //Object for distance sensor
34
35void setup()
36{
37
38  receiver.enableIRIn(); //Open the IR receiver
39  lcd.init(); //Open LCD
40
41  lcd.backlight(); //'Turn on the light'
42  lcd.setCursor(0, 0); //Setting the
43  cursor on the first row, first column
44  lcd.print("Moisture->0"); //Showing
45  the option on LCD, printing 'Moisture->0'
46  lcd.setCursor(0,1); //Setting the
47  cursor on the second row, first column
48  lcd.print("Distance->1"); //Showing
49  the option on LCD, printing 'Distance->0'
50  //If you press '0' (zero) you will
51  get the value of the soil moisture
52  //If you press '1' (one) you will get the
53  value of the distance till the nearest object
54}
55
56//Function that returns
57  the number of the pressed button
58int IRCommand() 
59{
60  switch(result.value)
61
62  {
63    // If the adress is '0xFF6897' the button is '0', 
64    case 0xFF6897:
65  return 0; // If the adress is '0xFF6897' the button is '0'
66    case 0xFF30CF:
67  return 1; // If the adress is '0xFF30CF' the button is '1'
68  }
69}
70
71void
72  loop()
73{
74  if(receiver.decode(&result)) //Checking if a button was pressed
75
76  {
77    if(IRCommand()==0) //if the pressed button is '0'
78    {
79        lcd.clear();
80  //clear the text on the LCD
81        lcd.setCursor(0,0);
82        lcd.print("Moisture[%]:");
83
84        //Reading the soil moisture value from the sensor 
85        //(It can
86  be between 415 (wet) and 995(dry). I decided to make a map (dictionary) to show
87  the value as a percentage
88        //The value returned by your sensor may be
89  different but you can calibrate it by showing the value (returned from the sensor)
90
91        //on the LCD while you keep your sensor in air (soil moisture->0%) or in
92  water (soil moisture->100%)
93        int percentage = map(analogRead(PIN_moisture),995,415,0,100);
94  //995 -> 0%  and 415 -> 100%
95        //Checking if the value is over 100 or under
96  0 and corecting it (can happen sometimes, the sensor is crappy)
97        if(percentage<0)
98
99        {
100         percentage  = 0;
101        }
102        if(percentage>100)
103
104        {
105          percentage = 100;
106        }
107        //Printing the
108  percentage
109        lcd.setCursor(0, 1);
110        lcd.print(percentage);
111
112        delay(500);//Take a break ~500ms
113    }
114    if(IRCommand()==1) //if
115  the pressed button is '1'
116    {
117        lcd.clear(); //clear the text on the
118  LCD
119        lcd.setCursor(0, 0);
120        lcd.print("Distance[cm]:");
121
122        lcd.setCursor(0, 1);
123        lcd.print(sr04.Distance()); //Reading and
124  pinting the distance value from the sensor
125        delay(500); //Take a break
126  ~500ms
127    }
128    receiver.resume();//Reset the current IR command and waiting
129  for a new one
130  } 
131}
132

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