I am trying to connect the SIM808 shield with the Arduino Uno in order to collect GPS and sensing data to then send to a database (such as ThinkSpeak. Right now when I run the SIM808_GetGPS.ino code I am receiving the following error: "Sim808 init error." The SIM808 board is directly connected to the Uno and the Arduino is powered using a battery. Is there an example setup tutorial that shows the correct way to connect the two boards and run software? Does the SIM808 board require external power? Additionally, for the sim card I am using a sim card purchased from Particle but I am wondering if there is a sim card that is more compatible.
Below is the code I used:
/*!
* @file SIM808_GetGPS.ino
* @brief Get GPS data
* @details 1. This example is used to test SIM808 GPS/GPRS/GSM Shield's reading GPS data.
* @n 2. Open the SIM808_GetGPS example or copy these code to your project
* @n 3. Download and dial the function switch to Arduino
* @n 4. open serial helper
* @n 4. Place it outside, waiting for a few minutes and then it will send GPS data to serial
* @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
* @license The MIT License (MIT)
* @author [Jason](jason.ling@dfrobot.com)
* @maintainer [qsjhyy](yihuan.huang@dfrobot.com)
* @version V1.0
* @date 2022-02-08
* @url https://github.com/DFRobot/DFRobot_SIM808
*/
#include <DFRobot_SIM808.h>
/**
* Besides push-in connection with expansion board, it can also be connected by jump wires
* Set DIP switch to 3-Arduino, open the following macro
* Connect the main controller to the module with Dupont wires:
* Arduino | module
* PIN_TX | TX1
* PIN_RX | RX1
* Power the module, which is successful when the power indicator on the module is ON
*/
// #define CONNECT_BY_JUMPER 1
#if CONNECT_BY_JUMPER
#define PIN_TX 10
#define PIN_RX 11
SoftwareSerial mySerial(PIN_TX, PIN_RX);
DFRobot_SIM808 sim808(&mySerial);
/**
* Use Leonardo for push-in connection
* Set DIP switch to 3-Arduino, and use the Serial1 of Leonardo for communication
*/
#elif defined(ARDUINO_AVR_LEONARDO)
DFRobot_SIM808 sim808(&Serial1);
/**
* Use UNO & MEGA2560 for push-in connection
* Set DIP switch to 3-Arduino, and use the Serial of UNO and MEGA2560 for communication
*/
#else
DFRobot_SIM808 sim808(&Serial);
#endif
void setup() {
#if CONNECT_BY_JUMPER
mySerial.begin(9600);
#elif defined(ARDUINO_AVR_LEONARDO)
Serial1.begin(9600);
#endif
Serial.begin(9600);
//******** Initialize sim808 module *************
while(!sim808.init()) {
delay(1000);
Serial.print("Sim808 init error\r\n");
}
//************* Turn on the GPS power************
if( sim808.attachGPS())
Serial.println("Open the GPS power success");
else
Serial.println("Open the GPS power failure");
}
void loop() {
//************** Get GPS data *******************
if (sim808.getGPS()) {
Serial.print(sim808.GPSdata.year);
Serial.print("/");
Serial.print(sim808.GPSdata.month);
Serial.print("/");
Serial.print(sim808.GPSdata.day);
Serial.print(" ");
Serial.print(sim808.GPSdata.hour);
Serial.print(":");
Serial.print(sim808.GPSdata.minute);
Serial.print(":");
Serial.print(sim808.GPSdata.second);
Serial.print(":");
Serial.println(sim808.GPSdata.centisecond);
Serial.print("latitude :");
Serial.println(sim808.GPSdata.lat,6);
sim808.latitudeConverToDMS();
Serial.print("latitude :");
Serial.print(sim808.latDMS.degrees);
Serial.print("\^");
Serial.print(sim808.latDMS.minutes);
Serial.print("\'");
Serial.print(sim808.latDMS.seconeds,6);
Serial.println("\"");
Serial.print("longitude :");
Serial.println(sim808.GPSdata.lon,6);
sim808.LongitudeConverToDMS();
Serial.print("longitude :");
Serial.print(sim808.longDMS.degrees);
Serial.print("\^");
Serial.print(sim808.longDMS.minutes);
Serial.print("\'");
Serial.print(sim808.longDMS.seconeds,6);
Serial.println("\"");
Serial.print("speed_kph :");
Serial.println(sim808.GPSdata.speed_kph);
Serial.print("heading :");
Serial.println(sim808.GPSdata.heading);
//************* Turn off the GPS power ************
sim808.detachGPS();
}
}
type or paste code here