mirror of
https://github.com/KevinMidboe/TinyGSM.git
synced 2025-10-29 18:00:18 +00:00
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/**************************************************************
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*
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* This script tries to auto-detect the baud rate
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* and allows direct AT commands access
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*
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* TinyGSM Getting Started guide:
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* http://tiny.cc/tiny-gsm-readme
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*
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**************************************************************/
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// Select your modem:
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#define TINY_GSM_MODEM_SIM800
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//#define TINY_GSM_MODEM_SIM900
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//#define TINY_GSM_MODEM_M590
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#include <TinyGsmClient.h>
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// Set serial for debug console (to the Serial Monitor, speed 115200)
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#define SerialMon Serial
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// Set serial for AT commands (to the module)
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// Use Hardware Serial on Mega, Leonardo, Micro
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#define SerialAT Serial1
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// or Software Serial on Uno, Nano
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//#include <SoftwareSerial.h>
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//SoftwareSerial SerialAT(2, 3); // RX, TX
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TinyGsm modem(SerialAT);
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// Module baud rate
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uint32_t rate = 0; // Set to 0 for Auto-Detect
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void setup() {
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// Set console baud rate
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SerialMon.begin(115200);
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delay(5000);
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}
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void loop() {
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if (!rate) {
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static uint32_t rates[] = { 115200, 9600, 57600, 19200, 38400, 74400, 74880, 230400, 460800, 2400, 4800, 14400, 28800 };
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SerialMon.println("Autodetecting baud rate");
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for (unsigned i = 0; i < sizeof(rates)/sizeof(rates[0]); i++) {
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SerialMon.print(String("Trying baud rate ") + rates[i] + "... ");
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SerialAT.begin(rates[i]);
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delay(10);
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if (modem.autoBaud(1000)) {
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rate = rates[i];
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SerialMon.println(F("OK"));
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break;
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} else {
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SerialMon.println(F("fail"));
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}
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}
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}
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if (!rate) {
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SerialMon.println(F("***********************************************************"));
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SerialMon.println(F(" Module does not respond!"));
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SerialMon.println(F(" Check your Serial wiring"));
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SerialMon.println(F(" Check the module is correctly powered and turned on"));
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SerialMon.println(F("***********************************************************"));
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delay(30000L);
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return;
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}
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SerialAT.begin(rate);
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// Access AT commands from Serial Monitor
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SerialMon.println(F("***********************************************************"));
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SerialMon.println(F(" You can now send AT commands"));
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SerialMon.println(F(" Enter \"AT\" (without quotes), and you should see \"OK\""));
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SerialMon.println(F(" If it doesn't work, select \"Both NL & CR\" in Serial Monitor"));
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SerialMon.println(F("***********************************************************"));
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while(true) {
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if (SerialAT.available()) {
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SerialMon.write(SerialAT.read());
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}
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if (SerialMon.available()) {
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SerialAT.write(SerialMon.read());
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}
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delay(0);
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}
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}
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