hello everybody, i need to supprime the part in this code that include the I2C OLED because there is no OLED in my project
i use a nano also
this is the schema of the cabling
excuse my english
this is the code
/*
commands
v = feedback request
*/
#include <SoftwareSerial.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
const int AirValue = 900;
const int WaterValue = 660;
int soilMoistureValue20 = 0;
int soilMoistureValue40 = 0;
float voltage20;
float vol_water_cont20;
float voltage40;
float vol_water_cont40;
char inchar;
SoftwareSerial SIM900(8, 7);
String TextForSms ;
String humidity20 = "moisture20: %";
String humidity40 = "moisture40: %";
void setup() {
Serial.begin(9600);
SIM900.begin(9600);
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
display.clearDisplay();
SIM900.print("AT+CMGF=1\r");
delay(1000);
SIM900.print("AT+CNMI=2,2,0,0,0\r");
delay(1000);
SIM900.println("AT+CMGD=1,4");
delay(5000);
Serial.println("Ready...");
}
void sendSMS(String message)
{
SIM900.println("AT+CMGF=1\r");
delay(1000);
SIM900.println("AT+CMGS = \"+21652689171\"");
delay(1000);
SIM900.println(message);
delay(1000);
SIM900.println((char)26);
delay(1000);
SIM900.println();
delay(1000);
}
void loop() {
if(SIM900.available() == 0)
{
delay(2000);
soilMoistureValue20 = analogRead(A0);
Serial.println(soilMoistureValue20);
voltage20 = (float(soilMoistureValue20)/1023.0)*3.3;
vol_water_cont20 = ((-0.3051)*voltage20)+0.9937;
soilMoistureValue40 = analogRead(A1);
Serial.println(soilMoistureValue40);
voltage40 = (float(soilMoistureValue40)/1023.0)*3.3;
vol_water_cont40 = ((-0.3051)*voltage40)+0.9937;
if (isnan(vol_water_cont20) || isnan(vol_water_cont40)) {
Serial.println("Failed to read from sensor!");
return;
}
delay (100);
Serial.print("humidity20 =");
Serial.print(vol_water_cont20);
Serial.print("humidity40 =");
Serial.print(vol_water_cont40);
display.setCursor(5,0);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println("M20=");
display.setCursor(60,0);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println(vol_water_cont20);
display.setCursor(5,15);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println("M40=");
display.setCursor(60,15);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println(vol_water_cont40);
display.display();
delay(250);
display.clearDisplay();
TextForSms = TextForSms + "moisture20: ";
TextForSms.concat(vol_water_cont20);
Serial.println(TextForSms);
TextForSms = TextForSms + " moisture40: ";
TextForSms.concat(vol_water_cont40);
Serial.println(TextForSms);
delay(2000);
TextForSms = " ";
}
if(SIM900.available() >0)
{
inchar=SIM900.read();
Serial.println(inchar);
delay(20);
if (inchar=='v')
{
delay(10);
Serial.println(inchar);
// Wait a few seconds between measurements.
delay(2000);
soilMoistureValue20 = analogRead(A0);
Serial.println(soilMoistureValue20);
voltage20 = (float(soilMoistureValue20)/1023.0)*3.3;
vol_water_cont20 = ((-0.3051)*voltage20)+0.9937;
soilMoistureValue40 = analogRead(A1);
Serial.println(soilMoistureValue40);
voltage40 = (float(soilMoistureValue40)/1023.0)*3.3;
vol_water_cont40 = ((-0.3051)*voltage40)+0.9937;
if (isnan(vol_water_cont20) || isnan(vol_water_cont40)) {
Serial.println("Failed to read from sensor!");
return;
}
delay(100);
Serial.print("humidity20 =");
Serial.print(vol_water_cont20);
Serial.print("humidity40 =");
Serial.print(vol_water_cont40);
display.setCursor(5,0);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println("M20=");
display.setCursor(60,0);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println(vol_water_cont20);
display.setCursor(5,15);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println("M40=");
display.setCursor(60,15);
display.setTextSize(2);
display.setTextColor(WHITE);
display.println(vol_water_cont40);
display.display();
delay(250);
display.clearDisplay();
TextForSms = TextForSms + "moisture20 ";
TextForSms.concat(vol_water_cont20);
Serial.println(TextForSms);
TextForSms = TextForSms + " moisture40 ";
TextForSms.concat(vol_water_cont40);
sendSMS(TextForSms);
sendSMS(TextForSms);
Serial.println(TextForSms);
delay(2000);
TextForSms = " ";
}
}
}