So i recently just started testing my new T-Call ESP32 SIM800L but no matter how much i format the default GSM Blynk sketch i never get it to compile without error.
Right now the sketch is giving me the 'Blynk' was not declared in this scope error.
Here is my sketch in its entirety.
• T-Call ESP32 SIM800L
• Smartphone OS (Android)
• Blynk cloud
#define BLYNK_PRINT Serial // Comment this out to disable prints and save space
// GPRS credentials, if any
const char apn[] = "glosecure";
const char gprsUser[] = "secure";
const char gprsPass[] = "secure";
// SIM card PIN (leave empty, if not defined)
const char simPIN[] = "";
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
const char auth[] = "YKVZxVmxfW6mnNAnW3yHK4X7kX1tP0x-";
// TTGO T-Call pins
#define MODEM_RST 5
#define MODEM_PWKEY 4
#define MODEM_POWER_ON 23
#define MODEM_TX 27
#define MODEM_RX 26
#define I2C_SDA 21
#define I2C_SCL 22
// Set serial for debug console (to Serial Monitor, default speed 115200)
#define SerialMon Serial
// Set serial for AT commands (to SIM800 module)
#define SerialAT Serial1
// Configure TinyGSM library
#define TINY_GSM_MODEM_SIM800 // Modem is SIM800
#define TINY_GSM_RX_BUFFER 1024 // Set RX buffer to 1Kb
#include <Wire.h>
#include <TinyGsmClient.h>
#ifdef DUMP_AT_COMMANDS
#include <StreamDebugger.h>
StreamDebugger debugger(SerialAT, SerialMon);
TinyGsm modem(debugger);
#else
TinyGsm modem(SerialAT);
#endif
// I2C for SIM800 (to keep it running when powered from battery)
TwoWire I2CPower = TwoWire(0);
// TinyGSM Client for Internet connection
TinyGsmClient client(modem);
void setup()
{
// Set console baud rate
SerialMon.begin(115200);
// Set modem reset, enable, power pins
pinMode(MODEM_PWKEY, OUTPUT);
pinMode(MODEM_RST, OUTPUT);
pinMode(MODEM_POWER_ON, OUTPUT);
digitalWrite(MODEM_PWKEY, LOW);
digitalWrite(MODEM_RST, HIGH);
digitalWrite(MODEM_POWER_ON, HIGH);
// Set GSM module baud rate and UART pins
SerialAT.begin(115200, SERIAL_8N1, MODEM_RX, MODEM_TX);
delay(3000);
// Restart SIM800 module, it takes quite some time
// To skip it, call init() instead of restart()
SerialMon.println("Initializing modem...");
modem.restart();
// use modem.init() if you don't need the complete restart
// Unlock your SIM card with a PIN if needed
if (strlen(simPIN) && modem.getSimStatus() != 3 ) {
modem.simUnlock(simPIN);
String modemInfo = modem.getModemInfo();
SerialMon.print("Modem Info: ");
SerialMon.println(modemInfo);
Blynk.begin(auth, modem, apn, gprsUser, gprsPass);
}
}
void loop()
{
Blynk.run();
SerialMon.print("Connecting to APN: ");
SerialMon.print(apn);
if (!modem.gprsConnect(apn, gprsUser, gprsPass)) {
SerialMon.println(" fail");
}
else {
SerialMon.println(" OK");
}
}