SIM7000JCでもTinyGSMのHttpClientを動かしてみた

前回SIMCOM社のSIM7500JCでTinyGSMのHttpClientを動かしましたが
今回は同じくSIMCOM社のLTE cat.M1 のモジュールSIM7000JCでTinyGSMのHttpClientを動かしました。
[SIM7500JCで動かしたページはこちら](https://qiita.com/kaz19610303/items/9ab5d1dcbeb54d9b8488)

機器構成  

| 名称 | 型名 | メーカー |
|:----|:----|:----|
| マイコンボード | Arduino UNO | Arduino |
| SIM7000JC拡張ボード | **NS-SIM7000-0101** | Next Step |
| SIMカード | Plan-D | SORACOM |

通信用拡張ボードが **SIM7500JC から SIM7000JC** に変わっています。

プログラムは SIM7500JC のときのプログラムをベースに 通信モジュールの設定箇所だけを変更します。
その他の設定・変更は SIM7500JC のときと同じになりますのでそちらを参照して下さい。

```
// Select your modem:
// #define TINY_GSM_MODEM_SIM800
// #define TINY_GSM_MODEM_SIM808
// #define TINY_GSM_MODEM_SIM868
// #define TINY_GSM_MODEM_SIM900
#define TINY_GSM_MODEM_SIM7000
// #define TINY_GSM_MODEM_SIM5360
// #define TINY_GSM_MODEM_SIM7600
// #define TINY_GSM_MODEM_UBLOX
// #define TINY_GSM_MODEM_SARAR4
// #define TINY_GSM_MODEM_M95
// #define TINY_GSM_MODEM_BG96
// #define TINY_GSM_MODEM_A6
// #define TINY_GSM_MODEM_A7
// #define TINY_GSM_MODEM_M590
// #define TINY_GSM_MODEM_MC60
// #define TINY_GSM_MODEM_MC60E
// #define TINY_GSM_MODEM_ESP8266
// #define TINY_GSM_MODEM_XBEE
// #define TINY_GSM_MODEM_SEQUANS_MONARCH
```

プログラムを実行すると Arduino IDE の シリアルモニタに次のように表示されます。

```
Wait...
Waiting for network...[7579] ### Unhandled: +CEREG: 0,1

OK
 success
[8644] ### Unhandled: +CEREG: 0,1

OK
Network connected
Connecting to soracom.io success
GPRS connected
Performing HTTP GET request... Response status code: 200
Response Headers:
    Server : nginx/1.10.3 (Ubuntu)
    Date : Fri, 01 Jan 2021 07:26:29 GMT
    Content-Type : text/plain; charset=UTF-8
    Content-Length : 121
    Connection : close
    X-DNS-Prefetch-Control : off
    X-Frame-Options : SAMEORIGIN
    Strict-Transport-Security : max-age=15552000; includeSubDomains
    X-Download-Options : noopen
    X-Content-Type-Options : nosniff
    X-XSS-Protection : 1; mode=block
    Accept-Ranges : bytes
    Cache-Control : public, max-age=0
    Last-Modified : Wed, 27 Sep 2017 09:03:12 GMT
    ETag : W/"79-15ec2936080"
Content length is: 121
Response:

  _____            _____  _____  _____
    |  | |\ | \_/ |  ___ |_____ |  |  |
    |  | | \|  |  |_____| _____||  |  |


Body length is: 121
Server disconnected
GPRS disconnected
```

プログラム全体はこのようになります。

```HttpClient.ino
/**************************************************************
 *
 * This sketch connects to a website and downloads a page.
 * It can be used to perform HTTP/RESTful API calls.
 *
 * For this example, you need to install ArduinoHttpClient library:
 *   https://github.com/arduino-libraries/ArduinoHttpClient
 *   or from http://librarymanager/all#ArduinoHttpClient
 *
 * TinyGSM Getting Started guide:
 *   https://tiny.cc/tinygsm-readme
 *
 * For more HTTP API examples, see ArduinoHttpClient library
 *
 * NOTE: This example may NOT work with the XBee because the
 * HttpClient library does not empty to serial buffer fast enough
 * and the buffer overflow causes the HttpClient library to stall.
 * Boards with faster processors may work, 8MHz boards will not.
 **************************************************************/

// Select your modem:
// #define TINY_GSM_MODEM_SIM800
// #define TINY_GSM_MODEM_SIM808
// #define TINY_GSM_MODEM_SIM868
// #define TINY_GSM_MODEM_SIM900
#define TINY_GSM_MODEM_SIM7000
// #define TINY_GSM_MODEM_SIM5360
// #define TINY_GSM_MODEM_SIM7600
// #define TINY_GSM_MODEM_UBLOX
// #define TINY_GSM_MODEM_SARAR4
// #define TINY_GSM_MODEM_M95
// #define TINY_GSM_MODEM_BG96
// #define TINY_GSM_MODEM_A6
// #define TINY_GSM_MODEM_A7
// #define TINY_GSM_MODEM_M590
// #define TINY_GSM_MODEM_MC60
// #define TINY_GSM_MODEM_MC60E
// #define TINY_GSM_MODEM_ESP8266
// #define TINY_GSM_MODEM_XBEE
// #define TINY_GSM_MODEM_SEQUANS_MONARCH

// Set serial for debug console (to the Serial Monitor, default speed 115200)
#define SerialMon Serial

// Set serial for AT commands (to the module)
// Use Hardware Serial on Mega, Leonardo, Micro
// #define SerialAT Serial1

// or Software Serial on Uno, Nano
#include <SoftwareSerial.h>
SoftwareSerial SerialAT(8, 7); // RX, TX

// Increase RX buffer to capture the entire response
// Chips without internal buffering (A6/A7, ESP8266, M590)
// need enough space in the buffer for the entire response
// else data will be lost (and the http library will fail).
#if !defined(TINY_GSM_RX_BUFFER)
#define TINY_GSM_RX_BUFFER 650
#endif

// See all AT commands, if wanted
// #define DUMP_AT_COMMANDS

// Define the serial console for debug prints, if needed
#define TINY_GSM_DEBUG SerialMon
// #define LOGGING  // <- Logging is for the HTTP library

// Range to attempt to autobaud
#define GSM_AUTOBAUD_MIN 9600
#define GSM_AUTOBAUD_MAX 115200

// Add a reception delay - may be needed for a fast processor at a slow baud rate
// #define TINY_GSM_YIELD() { delay(2); }

// Define how you're planning to connect to the internet
#define TINY_GSM_USE_GPRS true
#define TINY_GSM_USE_WIFI false

// set GSM PIN, if any
#define GSM_PIN ""

// Your GPRS credentials, if any
const char apn[]  = "soracom.io";
const char gprsUser[] = "sora";
const char gprsPass[] = "sora";

// Your WiFi connection credentials, if applicable
const char wifiSSID[]  = "YourSSID";
const char wifiPass[]  = "YourWiFiPass";

// Server details
const char server[] = "vsh.pp.ua";
const char resource[] = "/TinyGSM/logo.txt";
const int  port = 80;

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

// Just in case someone defined the wrong thing..
#if TINY_GSM_USE_GPRS && not defined TINY_GSM_MODEM_HAS_GPRS
#undef TINY_GSM_USE_GPRS
#undef TINY_GSM_USE_WIFI
#define TINY_GSM_USE_GPRS false
#define TINY_GSM_USE_WIFI true
#endif
#if TINY_GSM_USE_WIFI && not defined TINY_GSM_MODEM_HAS_WIFI
#undef TINY_GSM_USE_GPRS
#undef TINY_GSM_USE_WIFI
#define TINY_GSM_USE_GPRS true
#define TINY_GSM_USE_WIFI false
#endif

#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);

void setup() {
  // Set console baud rate
  SerialMon.begin(115200);
  delay(10);

  // !!!!!!!!!!!
  // Set your reset, enable, power pins here
  pinMode(12, OUTPUT);
  digitalWrite(12, HIGH);
  delay(500);
  digitalWrite(12, LOW);
  // !!!!!!!!!!!

  SerialMon.println("Wait...");

  // Set GSM module baud rate
  // TinyGsmAutoBaud(SerialAT, GSM_AUTOBAUD_MIN, GSM_AUTOBAUD_MAX);
  SerialAT.begin(4800);
  delay(6000);

  // Restart takes quite some time
  // To skip it, call init() instead of restart()
  // SerialMon.println("Initializing modem...");
  // modem.restart();
  // modem.init();

  //  String modemInfo = modem.getModemInfo();
  //  SerialMon.print("Modem Info: ");
  //  SerialMon.println(modemInfo);

#if TINY_GSM_USE_GPRS
  // Unlock your SIM card with a PIN if needed
  if ( GSM_PIN && modem.getSimStatus() != 3 ) {
    modem.simUnlock(GSM_PIN);
  }
#endif
}

void loop() {

#if TINY_GSM_USE_WIFI
  // Wifi connection parameters must be set before waiting for the network
  SerialMon.print(F("Setting SSID/password..."));
  if (!modem.networkConnect(wifiSSID, wifiPass)) {
    SerialMon.println(" fail");
    delay(10000);
    return;
  }
  SerialMon.println(" success");
#endif

#if TINY_GSM_USE_GPRS && defined TINY_GSM_MODEM_XBEE
  // The XBee must run the gprsConnect function BEFORE waiting for network!
  modem.gprsConnect(apn, gprsUser, gprsPass);
#endif

  SerialMon.print("Waiting for network...");
  if (!modem.waitForNetwork()) {
    SerialMon.println(" fail");
    delay(10000);
    return;
  }
  SerialMon.println(" success");

  if (modem.isNetworkConnected()) {
    SerialMon.println("Network connected");
  }

#if TINY_GSM_USE_GPRS
  // GPRS connection parameters are usually set after network registration
    SerialMon.print(F("Connecting to "));
    SerialMon.print(apn);
    if (!modem.gprsConnect(apn, gprsUser, gprsPass)) {
      SerialMon.println(" fail");
      delay(10000);
      return;
    }
    SerialMon.println(" success");

    if (modem.isGprsConnected()) {
      SerialMon.println("GPRS connected");
    }
#endif

  SerialMon.print(F("Performing HTTP GET request... "));
  int err = http.get(resource);
  if (err != 0) {
    SerialMon.println(F("failed to connect"));
    delay(10000);
    return;
  }

  int status = http.responseStatusCode();
  SerialMon.print(F("Response status code: "));
  SerialMon.println(status);
  if (!status) {
    delay(10000);
    return;
  }

  SerialMon.println(F("Response Headers:"));
  while (http.headerAvailable()) {
    String headerName = http.readHeaderName();
    String headerValue = http.readHeaderValue();
    SerialMon.println("    " + headerName + " : " + headerValue);
  }

  int length = http.contentLength();
  if (length >= 0) {
    SerialMon.print(F("Content length is: "));
    SerialMon.println(length);
  }
  if (http.isResponseChunked()) {
    SerialMon.println(F("The response is chunked"));
  }

  String body = http.responseBody();
  SerialMon.println(F("Response:"));
  SerialMon.println(body);

  SerialMon.print(F("Body length is: "));
  SerialMon.println(body.length());

  // Shutdown

  http.stop();
  SerialMon.println(F("Server disconnected"));

#if TINY_GSM_USE_WIFI
    modem.networkDisconnect();
    SerialMon.println(F("WiFi disconnected"));
#endif
#if TINY_GSM_USE_GPRS
    modem.gprsDisconnect();
    SerialMon.println(F("GPRS disconnected"));
#endif

  // Do nothing forevermore
  while (true) {
    delay(1000);
  }
}
```

-----
確認はしていませんが SIM7000JC でもサンプルプログラムの「AllFunctions」、「WebClient」も動くと思います。