http_post_json_sim7600

/*
  #define RXD2 26
  #define TXD2 27

  #define PKEY 12
  #define RST 14
*/

#define RXD2 26
#define TXD2 27

#define PKEY 13
#define RST 14

#define SerialMon Serial
#define SerialAT Serial2

int ledState = LOW;
const int ledPin =  12;
int counter = 0;

unsigned long cur_time, old_time;
unsigned long cur_time_led, old_time_led;
unsigned long cur_time_push, old_time_push;
unsigned long cur_time_rst, old_time_rst;

const int time_push = 1; //push per detik

bool hold = 0;

#define TINY_GSM_MODEM_SIM7600
#if !defined(TINY_GSM_RX_BUFFER)
#define TINY_GSM_RX_BUFFER 650
#endif
#define TINY_GSM_DEBUG SerialMon
// set GSM PIN, if any
#define GSM_PIN ""

// Your GPRS credentials, if any
const char apn[]      = "Internet";
const char gprsUser[] = "";
const char gprsPass[] = "";

const char server[]   = "dweet.io";
const char resource[] = "/dweet/for/";
const int  port       = 80;

#include <TinyGsmClient.h>
#include <ArduinoHttpClient.h>

#ifdef DUMP_AT_COMMANDS
#include <StreamDebugger.h>
StreamDebugger debugger(SerialAT, SerialMon);
TinyGsm        modem(debugger);
#else
TinyGsm        modem(SerialAT);
#endif

TinyGsmClient client(modem);
HttpClient    http(client, server, port);

#include <ArduinoJson.h>
StaticJsonDocument<450> doc;
String buf_message_push = "";

void setup() {
  // put your setup code here, to run once:
  SerialMon.begin(9600);
  SerialAT.begin(115200, SERIAL_8N1, RXD2, TXD2);
  delay(250);
  SerialMon.println("test at mulai");
  pinMode(ledPin, OUTPUT);
  pinMode(RST, OUTPUT);
  pinMode(PKEY, OUTPUT);

  digitalWrite(PKEY, LOW);
  digitalWrite(RST, LOW);
  delay(1000);
  digitalWrite(PKEY, HIGH);
  digitalWrite(RST, HIGH);
  delay(1000);
  digitalWrite(PKEY, LOW);
  digitalWrite(RST, LOW);
  delay(1000);
  SerialMon.println("Initializing modem...");
  modem.restart();
  String modemInfo = modem.getModemInfo();
  SerialMon.print("Modem Info: ");
  SerialMon.println(modemInfo);
  delay(1000);

  byte _retry = 0;
  if (!modem.gprsConnect(apn, gprsUser, gprsPass)) {
    SerialMon.println(" fail");
    delay(5000);
    _retry ++;
    Serial.print("retry: ");
    Serial.println(_retry);
    return;
  }
}

void loop() {
  // put your main code here, to run repeatedly:

  cur_time_led = millis();
  if (cur_time_led - old_time_led >= 1000) {

    if (ledState == LOW) {
      ledState = HIGH;
    } else {
      ledState = LOW;
    }

    digitalWrite(ledPin, ledState);
    old_time_led = cur_time_led;
  }

  cur_time_push = millis() / 1000;
  if (cur_time_push - old_time_push >= time_push) {
    push_server();

    old_time_push = millis() / 1000;
  }

  cur_time_rst = millis()/1000;
  if (cur_time_rst - old_time_rst >= 43200) { // restart setiap 12 jam sekali
    ESP.restart();
    old_time_rst = millis() / 1000;
  }

}

void send_at(char *_command) {
  SerialAT.println(_command);
  wRespon(1000);
}

void wRespon(long waktu) {
  cur_time = millis();
  old_time = cur_time;
  while (cur_time - old_time < waktu ) {
    cur_time = millis();
    while (SerialAT.available() > 0) {
      SerialMon.print(SerialAT.readString());
    }
  }
}

void get_sensor() {
  int sensorX = 0;
  int sensorY = 0;
  String message_push = "";
  String id_truck = "AB001";

  sensorX = random(10, 100);
  sensorY = random(10, 100);

  doc["id"] = id_truck;
  doc["X"] = sensorX;
  doc["Y"] = sensorX;
  serializeJson(doc, message_push);
  Serial.print("payload: ");
  Serial.println(message_push);
  buf_message_push = message_push;
  doc.clear();

  //

  Serial.print("payload: ");
  Serial.println(buf_message_push);

}

void push_server() {
  get_sensor();
  Serial.println("push to server");

  byte _retry = 0;
  if (!modem.gprsConnect(apn, gprsUser, gprsPass)) {
    SerialMon.println(" fail");
    delay(10000);
    return;
  }

  if (!client.connect(server, port)) {
    SerialMon.println(" fail");
    delay(10000);
    return;
  }

  client.println("POST /dweet/for/ HTTP/1.1");
  client.println("Host: dweet.io");
  client.println("Content-Type: application/json");
  client.print("Content-Length: ");
  client.println(buf_message_push.length());
  client.println();
  client.println(buf_message_push);
  client.println();
  delay(100);

  uint32_t timeout = millis();
  while (client.connected() && millis() - timeout < 10000L) {
    // Print available data
    while (client.available()) {
      char c = client.read();
      SerialMon.print(c);

      // hapus comment ini jika ingin lebih cepat respon nya
      if (c == 'O') {
        timeout = 10000L;
        break;
      }


      timeout = millis();
    }
  }
  SerialMon.println();
  client.stop();
  SerialMon.println(F("Server disconnected"));
  //modem.gprsDisconnect();

}


void reset_sim() {
  digitalWrite(RST, HIGH);
}

void wakeup_sim() {
  SerialMon.println("wakeup sim7600");
  digitalWrite(PKEY, LOW);
  digitalWrite(RST, LOW);
  delay(1000);
  digitalWrite(PKEY, HIGH);
  digitalWrite(RST, HIGH);
  delay(1000);
  digitalWrite(PKEY, LOW);
  digitalWrite(RST, LOW);
  delay(1000);
  wRespon(15000);
}