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96 lines
2.3 KiB

/**************************************************************
*
* This sketch uploads SSL certificates to the SIM8xx
*
* TinyGSM Getting Started guide:
* https://tiny.cc/tinygsm-readme
*
**************************************************************/
// This example is specific to SIM8xx
#define TINY_GSM_MODEM_SIM800
// Select your certificate:
#include "DSTRootCAX3.h"
//#include "DSTRootCAX3.der.h"
//#include "COMODORSACertificationAuthority.h"
// Select the file you want to write into
// (the file is stored on the modem)
#define CERT_FILE "C:\\USER\\CERT.CRT"
#include <TinyGsmClient.h>
// Set serial for debug console (to the Serial Monitor, speed 115200)
#define SerialMon Serial
// Use Hardware Serial for AT commands
#define SerialAT Serial1
// 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
void setup() {
// Set console baud rate
SerialMon.begin(115200);
delay(10);
// Set GSM module baud rate
SerialAT.begin(115200);
delay(6000);
SerialMon.println(F("Initializing modem..."));
modem.init();
modem.sendAT(GF("+FSCREATE=" CERT_FILE));
if (modem.waitResponse() != 1) return;
const int cert_size = sizeof(cert);
modem.sendAT(GF("+FSWRITE=" CERT_FILE ",0,"), cert_size, GF(",10"));
if (modem.waitResponse(GF(">")) != 1) {
return;
}
for (int i = 0; i < cert_size; i++) {
char c = pgm_read_byte(&cert[i]);
modem.stream.write(c);
}
modem.stream.write(GSM_NL);
modem.stream.flush();
if (modem.waitResponse(2000) != 1) return;
modem.sendAT(GF("+SSLSETCERT=\"" CERT_FILE "\""));
if (modem.waitResponse() != 1) return;
if (modem.waitResponse(5000L, GF(GSM_NL "+SSLSETCERT:")) != 1) return;
const int retCode = modem.stream.readStringUntil('\n').toInt();
SerialMon.println();
SerialMon.println();
SerialMon.println(F("****************************"));
SerialMon.print(F("Setting Certificate: "));
SerialMon.println((0 == retCode) ? "OK" : "FAILED");
SerialMon.println(F("****************************"));
}
void loop() {
if (SerialAT.available()) {
SerialMon.write(SerialAT.read());
}
if (SerialMon.available()) {
SerialAT.write(SerialMon.read());
}
delay(0);
}