Hello Guys,
Last summer i had to control the moisture of the soil of my KIWI farm, KIWIs are very sensitive on moisture.
So i started by buying the parts that i needed as :
A solar battery charger
http://www.ebay.com/itm/10A-20A-30A-12V-24V-Solar-Panel-Charger-Controller-Battery-Regulator-USB-LCD-New/222544619442?ssPageName=STRK%3AMEBIDX%3AIT&var=521389261689&_trksid=p2057872.m2749.l2649
An arduino nano
http://www.ebay.com/itm/Mini-USB-Nano-V3-0-ATmega328P-CH340G-FT232-5V-16M-Micro-controller-Board-Arduino/172440100565?ssPageName=STRK%3AMEBIDX%3AIT&var=471281026540&_trksid=p2057872.m2749.l2649
A GPS module
http://www.ebay.com/itm/Wireless-SIM900-850-900-1800-1900-MHz-Extension-Module-GSM-GPRS-Board-Antenna/262880453797?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
4 sensors moisture
http://www.ebay.com/itm/Soil-Hygrometer-Humidity-Detection-Module-Moisture-Water-Sensor-Fr-Arduino-/382075296681?epid=847232274&hash=item58f5765ba9:g:LKUAAOSwrhBZD9n6
A terminal for Arduino nano
http://www.ebay.com/itm/Nano-Terminal-Adapter-for-the-Arduino-Nano-V3-0-AVR-ATMEGA328P-AU-Module-Board-N/391792372956?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
A DC2DC converter
http://www.ebay.com/itm/Buck-Step-down-LM2596-Power-Converter-Module-DC-4-0-40-to-1-3-37V-LED-Voltmeter/161476280982?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
A Battery of 7AmpH
Two plastic boxes - watertight
Solar panel
http://www.ebay.com/itm/18V-10W-Solar-Charger-Panel-External-Portable-Battery-Car-W-Crocodile-Clips-/262485873542?hash=item3d1d609386:g:K1oAAOSwMNxXYjzu
Here is how i install the mositure sensors in the field
#include <SoftwareSerial.h>
#include <String.h>
SoftwareSerial GPRS1(3, 4);
float Humi10cm = 0.0; // first sensor at 10 cm depth
float Humi10cm2 = 0.0; // Second sensor at 10 cm depth
float Humi20cm = 0.0; // Thirth sensor at 20 cm depth
float Humi20cm2 = 0.0; // Forth sensor at 20 cm depth
float Power; //Battery level
float Humi10 = 0.0;
float Humi10c = 0.0;
float Humi20 = 0.0;
float Humi20c = 0.0;
float Pow;
long Repeat = 900000;
long TempTime;
int x = 0;
long previous;
int8_t answer;
void setup()
{
GPRS1.begin(9600);
Serial.begin(9600);
}
void loop()
{
if (GPRS1.available())
Serial.write(GPRS1.read());
{
Pow = analogRead (0) ; //Sets analog pin 1 as input
Power = Pow / 41.3 ; //Val1 divided by 4.092
Serial . println (Power) ; //Prints to serial monitor window
}
{
Humi10 = analogRead (1) ; //Sets analog pin 1 as input
Humi10cm = Humi10 * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi10cm) ; //Prints to serial monitor window
}
{
Humi10c = analogRead (2) ; //Sets analog pin 1 as input
Humi10cm2 = Humi10c * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi10cm2) ; //Prints to serial monitor window
}
{
Humi20 = analogRead (3) ; //Sets analog pin 1 as input
Humi20cm = Humi20 * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi20cm) ; //Prints to serial monitor window
}
{
Humi20c = analogRead (4) ; //Sets analog pin 1 as input
Humi20cm2 = Humi20c * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi20cm2) ; //Prints to serial monitor window
}
if (millis() - TempTime >= Repeat ) { //How often to send data
Senddata();
TempTime = millis();
}
delay(5000);
}
void Senddata()
{
GPRS1.println("AT");
delay(1000);
GPRS1.println("AT+CPIN?");
delay(1000);
GPRS1.println("AT+CREG?");
delay(1000);
GPRS1.println("AT+CGATT?");
delay(1000);
GPRS1.println("AT+CIPSHUT");
delay(1000);
GPRS1.println("AT+CIPSTATUS");
delay(2000);
GPRS1.println("AT+CIPMUX=0");
delay(2000);
ShowSerialData();
GPRS1.println("AT+CSTT=\"internet\"");//start task and setting the APN,
delay(1000);
ShowSerialData();
GPRS1.println("AT+CIICR");//bring up wireless connection
delay(3000);
ShowSerialData();
GPRS1.println("AT+CIFSR");//get local IP adress
delay(2000);
ShowSerialData();
GPRS1.println("AT+CIPSPRT=0");
delay(3000);
ShowSerialData();
GPRS1.println("AT+CIPSTART=\"TCP\",\"api.thingspeak.com\",\"80\"");//start up the connection
delay(6000);
ShowSerialData();
GPRS1.println("AT+CIPSEND");//begin send data to remote server
delay(4000);
ShowSerialData();
String str = "GET http://api.thingspeak.com/update?api_key=FWJ7P4K4T5IATJ5X&field1=" + String(Humi10cm) + "&field2=" + String(Humi10cm2) + "&field3=" + String(Humi20cm)+ "&field4=" + String(Humi20cm2);
GPRS1.println(str);//begin send data to remote server
delay(4000);
ShowSerialData();
GPRS1.println((char)26);//sending
delay(5000);//waitting for reply, important! the time is base on the condition of internet
GPRS1.println();
ShowSerialData();
GPRS1.println("AT+CIPSHUT");//close the connection
delay(100);
ShowSerialData();
}
void ShowSerialData()
{
while (GPRS1.available() != 0)
Serial.write(GPRS1.read());
}
int8_t sendATcommand(char* ATcommand, char* expected_answer1, unsigned int timeout)
{
uint8_t x = 0, answer = 0;
char response[100];
unsigned long previous;
memset(response, '\0', 100); // Initialize the string
delay(100);
while ( GPRS1.available() > 0) GPRS1.read(); // Clean the input buffer
GPRS1.println(ATcommand);
Serial.println(ATcommand);
x = 0;
previous = millis();
// this loop waits for the answer
do {
if (GPRS1.available() != 0) {
if (x == 100)
{
strncpy(response, response + 1, 99);
response[99] = GPRS1.read();
}
else
{
response[x] = GPRS1.read();
x++;
}
// check if the desired answer is in the response of the module
if (strstr(response, expected_answer1) != NULL)
{
answer = 1;
}
}
// Waits for the asnwer with time out
}
while ((answer == 0) && ((millis() - previous) < timeout));
return answer;
}
int8_t sendATcommand2(char* ATcommand, char* expected_answer1, char* expected_answer2, unsigned int timeout)
{
uint8_t x = 0, answer = 0;
char response[100];
unsigned long previous;
memset(response, '\0', 100); // Initialize the string
delay(100);
while ( GPRS1.available() > 0) GPRS1.read(); // Clean the input buffer
GPRS1.println(ATcommand); // Send the AT command
Serial.println(ATcommand);
x = 0;
previous = millis();
// this loop waits for the answer
do {
if (GPRS1.available() != 0) {
response[x] = GPRS1.read();
x++;
// check if the desired answer is in the response of the module
if (strstr(response, expected_answer1) != NULL)
{
answer = 1;
}
// check if the desired answer is in the response of the module
if (strstr(response, expected_answer2) != NULL)
{
answer = 2;
}
}
// Waits for the asnwer with time out
}
while ((answer == 0) && ((millis() - previous) < timeout));
return answer;
}
Last summer i had to control the moisture of the soil of my KIWI farm, KIWIs are very sensitive on moisture.
So i started by buying the parts that i needed as :
A solar battery charger
http://www.ebay.com/itm/10A-20A-30A-12V-24V-Solar-Panel-Charger-Controller-Battery-Regulator-USB-LCD-New/222544619442?ssPageName=STRK%3AMEBIDX%3AIT&var=521389261689&_trksid=p2057872.m2749.l2649
An arduino nano
http://www.ebay.com/itm/Mini-USB-Nano-V3-0-ATmega328P-CH340G-FT232-5V-16M-Micro-controller-Board-Arduino/172440100565?ssPageName=STRK%3AMEBIDX%3AIT&var=471281026540&_trksid=p2057872.m2749.l2649
A GPS module
http://www.ebay.com/itm/Wireless-SIM900-850-900-1800-1900-MHz-Extension-Module-GSM-GPRS-Board-Antenna/262880453797?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
4 sensors moisture
http://www.ebay.com/itm/Soil-Hygrometer-Humidity-Detection-Module-Moisture-Water-Sensor-Fr-Arduino-/382075296681?epid=847232274&hash=item58f5765ba9:g:LKUAAOSwrhBZD9n6
A terminal for Arduino nano
http://www.ebay.com/itm/Nano-Terminal-Adapter-for-the-Arduino-Nano-V3-0-AVR-ATMEGA328P-AU-Module-Board-N/391792372956?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
A DC2DC converter
http://www.ebay.com/itm/Buck-Step-down-LM2596-Power-Converter-Module-DC-4-0-40-to-1-3-37V-LED-Voltmeter/161476280982?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
A Battery of 7AmpH
Two plastic boxes - watertight
Wire connectors
http://www.ebay.com/itm/Car-Waterproof-Electrical-Wire-Connector-Plug-Terminals-HID-1-2-3-4-5-6-Way-Pin/261420505061?ssPageName=STRK%3AMEBIDX%3AIT&var=560309998216&_trksid=p2055119.m1438.l2649
Solar panel
http://www.ebay.com/itm/18V-10W-Solar-Charger-Panel-External-Portable-Battery-Car-W-Crocodile-Clips-/262485873542?hash=item3d1d609386:g:K1oAAOSwMNxXYjzu
Here is how i install the mositure sensors in the field
Next step was to add the parts in two small boxes ( i could not find a big one )
and here is the connections
The Power unit that includes the charger and the Battery
The CPU unit , Arduino and the moisture adapters
The panel and the wire to the sensors
Here is the software
#include <SoftwareSerial.h>
#include <String.h>
SoftwareSerial GPRS1(3, 4);
float Humi10cm = 0.0; // first sensor at 10 cm depth
float Humi10cm2 = 0.0; // Second sensor at 10 cm depth
float Humi20cm = 0.0; // Thirth sensor at 20 cm depth
float Humi20cm2 = 0.0; // Forth sensor at 20 cm depth
float Power; //Battery level
float Humi10 = 0.0;
float Humi10c = 0.0;
float Humi20 = 0.0;
float Humi20c = 0.0;
float Pow;
long Repeat = 900000;
long TempTime;
int x = 0;
long previous;
int8_t answer;
void setup()
{
GPRS1.begin(9600);
Serial.begin(9600);
}
void loop()
{
if (GPRS1.available())
Serial.write(GPRS1.read());
{
Pow = analogRead (0) ; //Sets analog pin 1 as input
Power = Pow / 41.3 ; //Val1 divided by 4.092
Serial . println (Power) ; //Prints to serial monitor window
}
{
Humi10 = analogRead (1) ; //Sets analog pin 1 as input
Humi10cm = Humi10 * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi10cm) ; //Prints to serial monitor window
}
{
Humi10c = analogRead (2) ; //Sets analog pin 1 as input
Humi10cm2 = Humi10c * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi10cm2) ; //Prints to serial monitor window
}
{
Humi20 = analogRead (3) ; //Sets analog pin 1 as input
Humi20cm = Humi20 * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi20cm) ; //Prints to serial monitor window
}
{
Humi20c = analogRead (4) ; //Sets analog pin 1 as input
Humi20cm2 = Humi20c * 0.097 ; //Val1 divided by 0.097
Serial . println (Humi20cm2) ; //Prints to serial monitor window
}
if (millis() - TempTime >= Repeat ) { //How often to send data
Senddata();
TempTime = millis();
}
delay(5000);
}
void Senddata()
{
GPRS1.println("AT");
delay(1000);
GPRS1.println("AT+CPIN?");
delay(1000);
GPRS1.println("AT+CREG?");
delay(1000);
GPRS1.println("AT+CGATT?");
delay(1000);
GPRS1.println("AT+CIPSHUT");
delay(1000);
GPRS1.println("AT+CIPSTATUS");
delay(2000);
GPRS1.println("AT+CIPMUX=0");
delay(2000);
ShowSerialData();
GPRS1.println("AT+CSTT=\"internet\"");//start task and setting the APN,
delay(1000);
ShowSerialData();
GPRS1.println("AT+CIICR");//bring up wireless connection
delay(3000);
ShowSerialData();
GPRS1.println("AT+CIFSR");//get local IP adress
delay(2000);
ShowSerialData();
GPRS1.println("AT+CIPSPRT=0");
delay(3000);
ShowSerialData();
GPRS1.println("AT+CIPSTART=\"TCP\",\"api.thingspeak.com\",\"80\"");//start up the connection
delay(6000);
ShowSerialData();
GPRS1.println("AT+CIPSEND");//begin send data to remote server
delay(4000);
ShowSerialData();
String str = "GET http://api.thingspeak.com/update?api_key=FWJ7P4K4T5IATJ5X&field1=" + String(Humi10cm) + "&field2=" + String(Humi10cm2) + "&field3=" + String(Humi20cm)+ "&field4=" + String(Humi20cm2);
GPRS1.println(str);//begin send data to remote server
delay(4000);
ShowSerialData();
GPRS1.println((char)26);//sending
delay(5000);//waitting for reply, important! the time is base on the condition of internet
GPRS1.println();
ShowSerialData();
GPRS1.println("AT+CIPSHUT");//close the connection
delay(100);
ShowSerialData();
}
void ShowSerialData()
{
while (GPRS1.available() != 0)
Serial.write(GPRS1.read());
}
int8_t sendATcommand(char* ATcommand, char* expected_answer1, unsigned int timeout)
{
uint8_t x = 0, answer = 0;
char response[100];
unsigned long previous;
memset(response, '\0', 100); // Initialize the string
delay(100);
while ( GPRS1.available() > 0) GPRS1.read(); // Clean the input buffer
GPRS1.println(ATcommand);
Serial.println(ATcommand);
x = 0;
previous = millis();
// this loop waits for the answer
do {
if (GPRS1.available() != 0) {
if (x == 100)
{
strncpy(response, response + 1, 99);
response[99] = GPRS1.read();
}
else
{
response[x] = GPRS1.read();
x++;
}
// check if the desired answer is in the response of the module
if (strstr(response, expected_answer1) != NULL)
{
answer = 1;
}
}
// Waits for the asnwer with time out
}
while ((answer == 0) && ((millis() - previous) < timeout));
return answer;
}
int8_t sendATcommand2(char* ATcommand, char* expected_answer1, char* expected_answer2, unsigned int timeout)
{
uint8_t x = 0, answer = 0;
char response[100];
unsigned long previous;
memset(response, '\0', 100); // Initialize the string
delay(100);
while ( GPRS1.available() > 0) GPRS1.read(); // Clean the input buffer
GPRS1.println(ATcommand); // Send the AT command
Serial.println(ATcommand);
x = 0;
previous = millis();
// this loop waits for the answer
do {
if (GPRS1.available() != 0) {
response[x] = GPRS1.read();
x++;
// check if the desired answer is in the response of the module
if (strstr(response, expected_answer1) != NULL)
{
answer = 1;
}
// check if the desired answer is in the response of the module
if (strstr(response, expected_answer2) != NULL)
{
answer = 2;
}
}
// Waits for the asnwer with time out
}
while ((answer == 0) && ((millis() - previous) < timeout));
return answer;
}
