Dear Mike,
Please have a look and test this code I merged and modified from the files you mentioned )(BlynkClient.ino & HttpClient.ino).
As I don’t have any GSM shield to test, I use the Ethernet W5100 shield to test the same code, just change from
//#define USE_ETHERNET_W5X00 false
#define USE_ETHERNET_W5X00 true
to
#define USE_ETHERNET_W5X00 false
//#define USE_ETHERNET_W5X00 true
to use GSM shield.
The full code is hereafter or at
/****************************************************************************************************************************
* Blynk_HTTPClient_Ethernet_GSM.ino
* For Mega boards using either W5X00 Ethernet shield or TinyGSM shield
*
* Rewritten to merge HTTPClient.ino and BlynkClient.ino examples in
* https://github.com/vshymanskyy/TinyGSM/tree/master/examples
*
* Built by Khoi Hoang https://github.com/khoih-prog
* Licensed under MIT license
*
* Original Blynk Library author:
* @file BlynkSimpleEsp8266.h
* @author Volodymyr Shymanskyy
* @license This project is released under the MIT License (MIT)
* @copyright Copyright (c) 2015 Volodymyr Shymanskyy
* @date Jan 2015
* @brief
*
* For this example, you need to install Blynk library:
* https://github.com/blynkkk/blynk-library/releases/latest
*
* TinyGSM Getting Started guide:
* https://tiny.cc/tinygsm-readme
*
*
* Blynk is a platform with iOS and Android apps to control
* Arduino, Raspberry Pi and the likes over the Internet.
* You can easily build graphic interfaces for all your
* projects by simply dragging and dropping widgets.
*
* Blynk supports many development boards with WiFi, Ethernet,
* GSM, Bluetooth, BLE, USB/Serial connection methods.
* See more in Blynk library examples and community forum.
*
* http://www.blynk.io/
*
* Change GPRS apm, user, pass, and Blynk auth token to run :)
*
*****************************************************************************************************************************/
#if defined(ESP8266) || defined(ESP32)
#error This code is designed to run on Arduino AVR (Mega, Mega1280, Mega2560, Mega ADK) platform, not ESP8266 nor ESP32! Please check your Tools->Board setting.
#endif
#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
// Default heartbeat interval for GSM is 60
// If you want override this value, uncomment and set this option:
//#define BLYNK_HEARTBEAT 30
// Set serial for debug console (to the Serial Monitor, default speed 115200)
#define SerialMon Serial
//#define USE_BLYNK_WM false
#define USE_BLYNK_WM true
#if !USE_BLYNK_WM
//#define USE_LOCAL_SERVER true
#define USE_LOCAL_SERVER false
#if USE_LOCAL_SERVER
#define blynk_auth "****"
#define blynk_server "****"
#else
#define blynk_auth "****"
#define blynk_server "blynk-cloud.com"
#endif
#define BLYNK_HARDWARE_PORT 8080
#endif
//#define USE_ETHERNET_W5X00 false
#define USE_ETHERNET_W5X00 true
#if USE_ETHERNET_W5X00
#include <SPI.h>
#include <Ethernet.h>
#if USE_BLYNK_WM
// Start location in EEPROM to store config data. Default 0
// Config data Size currently is 128 bytes)
#define EEPROM_START 256
#include <EthernetWebServer.h>
#include <BlynkSimpleEthernet_WM.h>
#else
#include <BlynkSimpleEthernet.h>
#endif
// You can specify your board mac adress
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
// Use this for static IP
IPAddress ip (192, 168, 2, 99);
IPAddress dns (192, 168, 2, 1);
IPAddress gateway (192, 168, 2, 1);
IPAddress subnet (255, 255, 255, 0);
// Ethernet shield and SDcard pins
#define W5100_CS 10
#define SDCARD_CS 4
EthernetClient client;
#else
// Select your modem:
#define TINY_GSM_MODEM_SIM800
// #define TINY_GSM_MODEM_SIM808
// #define TINY_GSM_MODEM_SIM900
// #define TINY_GSM_MODEM_UBLOX
// #define TINY_GSM_MODEM_BG96
// #define TINY_GSM_MODEM_A6
// #define TINY_GSM_MODEM_A7
// #define TINY_GSM_MODEM_M590
// #define TINY_GSM_MODEM_ESP8266
// #define TINY_GSM_MODEM_XBEE
// Increase RX buffer if needed
//#define TINY_GSM_RX_BUFFER 512
#include <TinyGsmClient.h>
//#include <BlynkSimpleSIM800.h>
#include <BlynkSimpleTinyGSM.h>
// Hardware Serial on Mega, Leonardo, Micro
#define SerialAT Serial1
// Your GPRS credentials
// Leave empty, if missing user or pass
#define apn "YourAPN"
#define user "****"
#define pass "****"
#define blynk_gsm_auth "****"
// Uncomment this if you want to see all AT commands
//#define DUMP_AT_COMMANDS
#ifdef DUMP_AT_COMMANDS
#include <StreamDebugger.h>
StreamDebugger debugger(SerialAT, SerialMon);
TinyGsm modem(debugger);
#else
TinyGsm modem(SerialAT);
#endif
TinyGsmClient client(modem);
#endif
#include <ArduinoHttpClient.h>
// Server details. Currently hardcoded.
#define http_server "vsh.pp.ua"
#define resource "/TinyGSM/logo.txt"
#define http_port 80
HttpClient http(client, http_server, http_port);
void setup()
{
// Set console baud rate
SerialMon.begin(115200);
delay(10);
#if USE_ETHERNET_W5X00
// Deselect the SD card
pinMode(SDCARD_CS, OUTPUT);
digitalWrite(SDCARD_CS, HIGH);
#else
// Set GSM module baud rate
SerialAT.begin(115200);
delay(3000);
// Restart takes quite some time
// To skip it, call init() instead of restart()
SerialMon.println("Initializing modem...");
modem.restart();
String modemInfo = modem.getModemInfo();
SerialMon.print("Modem: ");
SerialMon.println(modemInfo);
// Unlock your SIM card with a PIN
//modem.simUnlock("1234");
#endif
#if USE_ETHERNET_W5X00
#if USE_BLYNK_WM
Blynk.begin();
#else
#if USE_LOCAL_SERVER
Blynk.begin(blynk_auth, blynk_server, BLYNK_HARDWARE_PORT);
#else
Blynk.begin(blynk_auth);
#endif
#endif
#else
Blynk.begin(blynk_gsm_auth, modem, apn, user, pass);
#endif
if (Blynk.connected())
SerialMon.println("Blynk connected");
}
void HTTPClientHandle(void)
{
#if !USE_ETHERNET_W5X00
SerialMon.print(F("Waiting for network..."));
if (!modem.waitForNetwork())
{
SerialMon.println(" fail");
return;
}
SerialMon.println(" OK");
SerialMon.print(F("Connecting to "));
SerialMon.print(apn);
if (!modem.gprsConnect(apn, user, pass))
{
SerialMon.println(" fail");
return;
}
SerialMon.println(" OK");
#endif
SerialMon.print(F("Performing HTTP GET request... "));
int err = http.get(resource);
if (err != 0)
{
SerialMon.println(F("failed to connect"));
return;
}
int status = http.responseStatusCode();
SerialMon.println(status);
if (!status)
{
return;
}
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 !USE_ETHERNET_W5X00
modem.gprsDisconnect();
SerialMon.println(F("GPRS disconnected"));
#endif
}
void check_status()
{
static unsigned long checkstatus_timeout = 0;
#define STATUS_CHECK_INTERVAL 60000L
// Send status report every STATUS_REPORT_INTERVAL (60) seconds: we don't need to send updates frequently if there is no status change.
if ((millis() > checkstatus_timeout) || (checkstatus_timeout == 0))
{
HTTPClientHandle();
checkstatus_timeout = millis() + STATUS_CHECK_INTERVAL;
}
}
void loop()
{
Blynk.run();
check_status();
}
and this is the terminal output when running with W5100 Ethernet shield
[9] Getting IP...
[10] MAC: FE-D9-84-AB-FB-B8
EthernetClass: begin
EthernetClass: W5100 init OK
EthernetClass: beginWithDHCP, ret = 1
DHCP server found
[5697] IP:192.168.2.38
[5698]
___ __ __
/ _ )/ /_ _____ / /__
/ _ / / // / _ \/ '_/
/____/_/\_, /_//_/_/\_\
/___/ v0.6.1 on Arduino Mega
[6003] Ready (ping: 18ms).
Blynk connected
Performing HTTP GET request... 200
Content length is: 121
Response:
_____ _____ _____ _____
| | |\ | \_/ | ___ |_____ | | |
| | | \| | |_____| _____|| | |
Body length is: 121
Server disconnected
Performing HTTP GET request... 200
Content length is: 121
Response:
_____ _____ _____ _____
| | |\ | \_/ | ___ |_____ | | |
| | | \| | |_____| _____|| | |