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kicap1992
317
src/main.cpp
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317
src/main.cpp
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#include <Arduino.h>
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#include <Arduino_JSON.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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#include <Wire.h>
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#include <WiFi.h>
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#include <ArduinoHttpClient.h>
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#include <TinyGPS++.h>
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const int AirValue = 1800; // you need to replace this value with Value_1
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const int WaterValue = 1040; // you need to replace this value with Value_2
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const int SensorPin = 33;
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int soilMoistureValue = 0;
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int soilmoisturepercent = 0;
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
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#define SCREEN_HEIGHT 64 // OLED display height, in pixels
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
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#define TXD2 17
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#define RXD2 16
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TinyGPSPlus gps;
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// const char *ssid = "KKkkkkKKK";
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const char *ssid = "redmi";
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// const char *password = "12345679";
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const char *password = "987654321";
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char serverAddress[] = "tanah-longosor-be.herokuapp.com";
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// char serverAddress[] = "192.168.43.125";
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int serverPort = 3004;
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WiFiClient wifi;
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// HttpClient client = HttpClient(wifi, serverAddress, serverPort);
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HttpClient client = HttpClient(wifi, serverAddress);
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String cek_id()
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{
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String id, buf_id;
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uint64_t chipid;
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char ssid[13];
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chipid = ESP.getEfuseMac(); // The chip ID is essentially its MAC address(length: 6 bytes).
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uint16_t chip = (uint16_t)(chipid >> 32);
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snprintf(ssid, 13, "%04X%08X", chip, (uint32_t)chipid);
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for (int i = 0; i < 12; i++)
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{
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buf_id += String(ssid[i]);
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}
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id = buf_id;
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buf_id = "";
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// Serial.println(id);
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return id;
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}
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void wifi_connect_setup()
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{
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// wifi connection timeout = 15 seconds , if it takes longer than that, reboot the ESP32
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unsigned long start = millis();
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while (WiFi.status() != WL_CONNECTED)
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{
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Serial.println("Connecting to WiFi..");
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display.clearDisplay(); // clears the screen buffer
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0, 0);
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display.println("Connecting to WiFi..");
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display.display();
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if (millis() - start > 10000)
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{
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Serial.println("WiFi connection timeout");
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display.clearDisplay(); // clears the screen buffer
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0, 0);
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display.println("WiFi connection timeout");
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display.setCursor(0, 20);
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display.println("Rebooting ESP32..");
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display.display();
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delay(2000);
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ESP.restart();
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}
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delay(500);
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Serial.print(".");
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}
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Serial.println("Connected to the WiFi network");
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Serial.print("SSID: ");
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Serial.println(WiFi.SSID());
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IPAddress ip = WiFi.localIP();
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Serial.print("IP Address: ");
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Serial.println(ip);
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display.clearDisplay(); // clears the screen buffer
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0, 0);
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display.println("Connected to WiFi");
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display.setCursor(0, 10);
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display.println("SSID: " + WiFi.SSID());
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display.setCursor(0, 20);
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display.println("IP Address: " + ip.toString());
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display.display();
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delay(2000);
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}
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void setup()
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{
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Serial.begin(9600);
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Serial2.begin(9600, SERIAL_8N1, RXD2, TXD2);
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if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C))
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{ // Address 0x3C for 128x64
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Serial.println(F("SSD1306 allocation failed"));
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for (;;)
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; // Don't proceed, loop forever
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}
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Serial.println("Started......");
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// initialize with the I2C address 0x3C (for the 128x64)
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display.clearDisplay(); // clears the screen buffer
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// display intro message
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0, 0);
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display.println("Selamat datang di");
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display.setCursor(0, 10);
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display.println("Sistem Pengamatan");
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display.setCursor(0, 20);
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display.println("Tanah Longsor");
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display.setCursor(0, 30);
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display.println("Cek Koneksi WI-FI");
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display.display();
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delay(2000);
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WiFi.begin(ssid, password);
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pinMode(LED_BUILTIN, OUTPUT);
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wifi_connect_setup();
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}
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void print_speed(int soilMoistureValue)
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{
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display.clearDisplay();
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display.setTextColor(SSD1306_WHITE);
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if (gps.location.isValid() == 1)
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{
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// String gps_speed = String(gps.speed.kmph());
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display.setTextSize(1);
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display.setCursor(25, 5);
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display.print("Lat: ");
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display.setCursor(50, 5);
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display.print(gps.location.lat(), 6);
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display.setCursor(25, 20);
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display.print("Lng: ");
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display.setCursor(50, 20);
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display.print(gps.location.lng(), 6);
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display.setCursor(25, 35);
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display.print("val: ");
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display.setCursor(65, 35);
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display.print(soilMoistureValue);
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display.print(" %");
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display.setTextSize(1);
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display.setCursor(0, 50);
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display.print("SAT:");
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display.setCursor(25, 50);
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display.print(gps.satellites.value());
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display.setTextSize(1);
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display.setCursor(70, 50);
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display.print("ALT:");
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display.setCursor(95, 50);
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display.print(gps.altitude.meters(), 0);
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display.display();
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// send latitude ,longitude ,id ,soilMoistureValue to server
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client.post("/api/from_esp32", "application/json", "{\"latitude\":\"" + String(gps.location.lat()) + "\",\"longitude\":\"" + String(gps.location.lng()) + "\",\"id\":\"" + cek_id() + "\",\"soilMoistureValue\":\"" + String(soilMoistureValue) + "\"}");
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}
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else
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{
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Serial.println("GPS is not valid in this print_speed()");
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display.setTextSize(1);
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display.setCursor(25, 5);
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display.print("GPS: ");
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display.setCursor(50, 5);
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// display.print(' ');
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display.print("Searching..");
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display.setCursor(25, 20);
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display.print("Val: ");
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display.setCursor(50, 20);
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display.print(soilMoistureValue);
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display.print(" %");
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display.display();
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client.post("/api/from_esp32", "application/json", "{\"latitude\":\"" + String("") + "\",\"longitude\":\"" + String("") + "\",\"id\":\"" + cek_id() + "\",\"soilMoistureValue\":\"" + String(soilMoistureValue) + "\"}");
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}
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client.endRequest();
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// int statusCode = client.responseStatusCode();
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String response = client.responseBody();
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JSONVar myObject = JSON.parse(response);
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if (JSON.typeof(myObject) == "undefined")
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{
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Serial.println("Parsing input failed!");
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return;
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}
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else
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{
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Serial.println("Parsing input success!");
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Serial.println(myObject);
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// Serial.println(myObject["data"]["status"]);
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}
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}
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void wifi_reconnect()
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{
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unsigned long start = millis();
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// if WiFi is down, try reconnecting every CHECK_WIFI_TIME seconds
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while (WiFi.status() != WL_CONNECTED)
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{
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Serial.println("Connecting to WiFi..");
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display.clearDisplay(); // clears the screen buffer
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0, 0);
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display.println("Connecting to WiFi..");
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display.display();
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WiFi.disconnect();
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WiFi.reconnect();
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if (millis() - start > 15000)
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{
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Serial.println("WiFi connection timeout");
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display.clearDisplay(); // clears the screen buffer
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0, 0);
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display.println("WiFi connection timeout");
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display.setCursor(0, 20);
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display.println("Rebooting ESP32..");
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display.display();
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delay(2000);
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ESP.restart();
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}
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delay(500);
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}
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IPAddress ip = WiFi.localIP();
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delay(500);
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}
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void loop()
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{
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// wifi_reconnect();
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soilMoistureValue = analogRead(SensorPin);
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Serial.println(soilMoistureValue);
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// Serial.println(" inital value of soil moisture");
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soilmoisturepercent = map(soilMoistureValue, AirValue, WaterValue, 0, 100);
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boolean newData = false;
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for (unsigned long start = millis(); millis() - start < 1000;)
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{
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while (Serial2.available())
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{
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if (gps.encode(Serial2.read()))
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{
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newData = true;
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}
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}
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}
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// If newData is true
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if (newData == true)
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{
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newData = false;
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Serial.println(gps.satellites.value());
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print_speed(soilmoisturepercent);
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}
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else
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{
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Serial.println("No Data in this loop()");
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display.clearDisplay();
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display.setTextColor(SSD1306_WHITE);
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display.setTextSize(1);
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display.setCursor(25, 5);
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display.print("GPS: ");
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display.setCursor(50, 5);
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// display.print();
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display.print("No Data");
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display.setCursor(25, 20);
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display.print("Val: ");
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display.setCursor(50, 20);
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display.print(soilMoistureValue);
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display.print(" %");
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display.display();
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client.post("/api/from_esp32", "application/json", "{\"latitude\":\"" + String("") + "\",\"longitude\":\"" + String("") + "\",\"id\":\"" + cek_id() + "\",\"soilMoistureValue\":\"" + String(soilMoistureValue) + "\"}");
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// int statusCode = client.responseStatusCode();
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String response = client.responseBody();
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JSONVar myObject = JSON.parse(response);
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if (JSON.typeof(myObject) == "undefined")
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{
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Serial.println("Parsing input failed!");
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return;
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}
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else
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{
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Serial.println("Parsing input success!");
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Serial.println(myObject);
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}
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}
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delay(1000);
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}
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