Hello im trying to make a program to compare the NFC tag #ID, im very used to Arduino, but im not used to SPI Programming.
i searched a lot, but i dont really know what i need exactly.
im trying match the NFC tag #ID and the variable NFC1.
Can anyone help me? please?
i just need some info/help to make the if statement work.
#include <PN532.h>
#include <SPI.h>
//SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK)
/*Chip select pin can be connected to D10 or D9 which is hareware optional*/
/*if you the version of NFC Shield from SeeedStudio is v2.0.*/
#define PN532_CS 10
PN532 nfc(PN532_CS);
#define NFC_DEMO_DEBUG 1
int BUZZER = 6;
uint32_t NFC1 = 3795120787;
int NFC2 = 3262404755;
int NFC3 = 46356883;
int NFC4 = 35320979;
int NFC5 = 3257334163;
void setup(void) {
pinMode(BUZZER, OUTPUT);
#ifdef NFC_DEMO_DEBUG
Serial.begin(9600);
Serial.println("Hello!");
#endif
nfc.begin();
uint32_t versiondata = nfc.getFirmwareVersion();
if (! versiondata) {
#ifdef NFC_DEMO_DEBUG
Serial.print("Didn't find PN53x board");
Serial.print("");
#endif
while (1); // halt
}
#ifdef NFC_DEMO_DEBUG
// Got ok data, print it out!
Serial.print("Found chip PN5");
Serial.println((versiondata>>24) & 0xFF, HEX);
/*Serial.print("Firmware ver. ");
Serial.print((versiondata>>16) & 0xFF, DEC);
Serial.print('.');
Serial.println((versiondata>>8) & 0xFF, DEC);
Serial.print("Supports ");
Serial.println(versiondata & 0xFF, HEX);*/
#endif
// configure board to read RFID tags and cards
nfc.SAMConfig();
}
void loop(void) {
uint32_t id;
// look for MiFare type cards
id = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A);
if (id != 0) {
#ifdef NFC_DEMO_DEBUG
Serial.println("");
Serial.print("Card #");
Serial.println(id);
analogWrite(BUZZER, 50);
delay(100);
analogWrite(BUZZER, 0);
delay(1000);
#endif
//char ch = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A);
if(NFC1 = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A)){
analogWrite(6, 255);
delay(250);
analogWrite(6, 0);
/*analogWrite(BUZZER, 50);
delay(50);
analogWrite(BUZZER, 0);
delay(50);
analogWrite(BUZZER, 50);
delay(50);
analogWrite(BUZZER, 0);*/}
else {
analogWrite(5, 255);
delay(250);
analogWrite(5, 0);
/*analogWrite(BUZZER, 50);
delay(100);
analogWrite(BUZZER, 0);
delay(100);
analogWrite(BUZZER, 50);
delay(100);
analogWrite(BUZZER, 0);
delay(100);
analogWrite(BUZZER, 50);
delay(100);
analogWrite(BUZZER, 0);*/}
}
}
Common mistake and the compiler could have helped you
Change this line:
uint32_t NFC1 = 3795120787;
To this line:
const uint32_t NFC1 = 3795120787;
You will now get a compiler error, which would have resulted in you going :o.
This line needs a ==, not a =. Not this:
if(NFC1 = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A)){ / doh!
This:
if(NFC1 == nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A)){ / ahh
Side note, this is a common typing error and reason why
if(1 == somevar) // is superior to
if(somevar == 1) // something that seems exactly the same
Because the compiler will tell you
if(1 = somevar) // no, you can't assign to a constant
if(somevar = 1) // okay, whatever you want boss
This advice is from "Writing Solid Code", Maguire and Moore, and has served me well.
Related
I can't seem to create a serial communication between esp866 nodemcuv3 and arduino mega 2560. The code seems to be working with only text messages. However, when the lcd, motor and temperature sensor is added the code doesn't seem to be working. Code is given below.
WORKING CODE:
#include <SoftwareSerial.h>
SoftwareSerial mySerial(10, 11); //rx,tx
void setup(){
mySerial.begin(115200);
Serial.begin(115200);
}
void loop (){
if(mySerial.available() >= 2) {
int data = mySerial.read();
data = (data << 8) + mySerial.read();
if (data == 0){
Serial.println("BREWING: Light COFFEE");
Serial.println(data);
mySerial.write("reset");
} else if (data == 1) {
Serial.println("BREWING: Normal COFFEE");
Serial.println(data);
mySerial.write("reset");
}else if (data == 2) {
Serial.println("BREWING: Strong COFFEE");
Serial.println(data);
mySerial.write("reset");
}
}
}
CODE THAT DOESN'T WORK:
#include <SoftwareSerial.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
#define ENA 5 // Enable Pin for Motor A
#define IN1 7 // Input Pin 1 for Motor A
#define IN2 6 // Input Pin 2 for Motor A
SoftwareSerial mySerial(10, 11); //rx,tx
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup(){
mySerial.begin(115200);
Serial.begin(115200);
pinMode(ENA, OUTPUT);
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
lcd.begin(20, 21);
lcd.backlight();
lcd.setCursor(0, 0);
lcd.print("Temp: ");
sensors.begin();
}
void loop(){
if(mySerial.available() >= 2){
int data = mySerial.read();
data = (data << 8) + mySerial.read();
if (data == 0){
Serial.println("BREWING: Light COFFEE");
Serial.println(data);
// Read temperature value from the DS18B20
sensors.requestTemperatures();
float temp = sensors.getTempCByIndex(0);
// print the temperature on the LCD
lcd.setCursor(0, 1);
lcd.print(temp);
// Control the L298N motor
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
delay(1000);
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
analogWrite(ENA, 128);
mySerial.write("reset");
} else if (data == 1) {
Serial.println("BREWING: Normal COFFEE");
Serial.println(data);
// Read temperature value from the DS18B20
sensors.requestTemperatures();
float temp = sensors.getTempCByIndex(0);
// print the temperature on the LCD
lcd.setCursor(0, 1);
lcd.print(temp);
mySerial.write("reset");
} else if (data == 2) {
Serial.println("BREWING: Strong COFFEE");
Serial.println(data);
// Read temperature value from the DS18B20
sensors.requestTemperatures();
float temp = sensors.getTempCByIndex(0);
// print the temperature on the LCD
lcd.setCursor(0, 1);
lcd.print(temp);
mySerial.write("reset");
}
}
}
I want to be able to completely run the conditions since we want to run a motor using an app which is connected to thingspeak through nodemcu v3 which also sends values (0,1,2) to arduino. However, as I stated earlier the code doesn't work with the added codes for I2C lcd, motor and temp sensor.
Thank you for everyone who will be willing to help.
Sofware serial doesn't really work well at those rates. Turn it down to 9600 or use hardware serial which the mega has a few of.
https://forum.arduino.cc/t/does-softwareserial-really-work-at-115200-baud/327450
I am finishing up a project for school, and I am at the last step for getting my device 100% working. For a little information on the project. I am developing a wireless speedometer that tracks rpm and converts it to MPH through a hall effects sensor. The modules I am using Heltec LoRa esp32 in addition to the LoRa library through Arduino. The issue I am having is that I am trying to use the data packets received and use the sensor values sent out to be used in an if statement to activate a vibration motor to indicate if they reached a certain top speed. My code is below, and any input on how to use the packets correctly would be much appreciated. Thank you.
Receiver:
//lora stuff
#include <SPI.h>
#include <LoRa.h>
#include "SSD1306.h"
SSD1306 display(0x3c, 4, 15);
#define SS 18
#define RST 14
#define DI0 26
#define BAND 433E6
//neopixel
#include <Adafruit_NeoPixel.h>
#define LED_PIN 32
#define LED_COUNT 1
Adafruit_NeoPixel strip = Adafruit_NeoPixel(1, 32, NEO_GRB + NEO_KHZ800);
const int buttonPin = 17;// button
const int neo = 32; //
const int neoCount = 1; //number of pixels
int counter = 0; //button state counter
int buttonState = 0;
//Vibration motor
int motorPin = 25;
//level of speed in mph to trigger motor
int beginner = 10;
int intermediate = 15;
int expert = 25;
int mphVal = 0;
String data;
unsigned int totalMPH;
void setup() {
//lora
pinMode(16, OUTPUT);
digitalWrite(16, LOW); // set GPIO16 low to reset OLED
delay(50);
digitalWrite(16, HIGH);
display.init();
display.flipScreenVertically();
display.setFont(ArialMT_Plain_10);
display.setTextAlignment(TEXT_ALIGN_LEFT);
// button
pinMode(buttonPin, INPUT);
//motor
pinMode(motorPin, OUTPUT);
//neopixel
strip.begin();
strip.show();
strip.setBrightness(50);
Serial.begin(115200);
//lora initial
while (!Serial); //if just the the basic function, must connect to a computer
delay(100);
Serial.println("Speed Receiver");
display.drawString(5, 5, "Speed Receiver");
display.display();
SPI.begin(5, 19, 27, 18);
LoRa.setPins(SS, RST, DI0);
if (!LoRa.begin(BAND)) {
display.drawString(5, 25, "Starting LoRa failed!");
while (1);
}
Serial.println("LoRa Initial OK!");
display.drawString(5, 25, "LoRa Initializing OK!");
display.display();
}
void loop() {
// try to parse packet
int packetSize = LoRa.parsePacket();
if (packetSize) {
// received a packets
//Serial.print("Received packet. ");
display.clear();
display.setFont(ArialMT_Plain_16);
display.drawString(3, 0, "Received Speed ");
display.display();
// read packet
while (LoRa.available()) {
String data = LoRa.readString();
Serial.print(data);
display.drawString(20, 22, data);
display.display();
// if speed reaches x then motor will buzz
if (data.equals("MPH: 12.5")) {
digitalWrite(motorPin, HIGH);
delay(10);
digitalWrite(motorPin, LOW);
delay(10);
}
}
// print RSSI of packet
//Serial.print(" with RSSI ");
//Serial.println(LoRa.packetRssi());
// display.drawString(20, 45, "RSSI: ");
// display.drawString(70, 45, (String)LoRa.packetRssi());
// display.display();
}
//taking the packet and turning it into an int from string
//String data = data.toInt();
//int data = totalMPH;
//float totalMPH = data.toFloat();
// char data;
// float totalMPH;
//totalMPH = atof(data);
//Serial.println(totalMPH);
//button
buttonState = digitalRead(buttonPin);
if (buttonState == HIGH) {
counter++;
delay(150);
}
//button states with three colors
//beginner
else if (counter == 0) {
//Serial.println("pushed");
strip.setPixelColor(0, 255, 0, 0);
strip.show();
//Serial.println(0);
display.drawString(10, 45, "REC: 10 MPH");
display.display();
//vibration motor will trigger if the speed recieved is less then or equal to 12mph
// digitalWrite(motorPin, HIGH);
// delay(4000);
// digitalWrite(motorPin, LOW);
// delay(120000);
}
//intermediate
else if (counter == 1) {
strip.setPixelColor(0, 0, 255, 0);
strip.show();
Serial.println(1);
display.drawString(10, 45, "REC: 15 MPH");
display.display();
//vibration motor will trigger if the speed recieved is less then or equal to 17mph
// digitalWrite(motorPin, HIGH);
// delay(4000);
// digitalWrite(motorPin, LOW);
// delay(240000);
//digitalWrite(motorPin, LOW);
}
//expert
else if (counter == 2) {
strip.setPixelColor(0, 0, 0, 255);
strip.show();
Serial.print(2);
display.drawString(10, 45, "REC: 20 MPH");
display.display();
//digitalWrite(motorPin, LOW);
}
//reset settings
else {
counter = 0;
}
}
Transmitter:
//lora
#include <SPI.h>
#include <LoRa.h>
#include "SSD1306.h"
#include <Arduino.h>
#include <Bounce2.h>
Bounce hall = Bounce();
SSD1306 display(0x3c, 4, 15);
#define SS 18
#define RST 14
#define DI0 26
#define BAND 433E6 //915E6
int counter = 0;
int rpmTimer = 0;
int rpmInterval = 1000;
void setup() {
//board and lcd
pinMode(25, OUTPUT); //Send success, LED will bright 1 second
pinMode(16, OUTPUT);
digitalWrite(16, LOW); // set GPIO16 low to reset OLED
delay(50);
digitalWrite(16, HIGH);
// sensor and led
hall.attach(37, INPUT);
hall.interval(1);
//pinMode(led, OUTPUT);
//pinMode(hallSens, INPUT);
Serial.begin(115200);
//lcd
while (!Serial); //If just the the basic function, must connect to a computer
// Initialising the UI will init the display too.
display.init();
display.flipScreenVertically();
display.setFont(ArialMT_Plain_10);
display.setTextAlignment(TEXT_ALIGN_LEFT);
display.drawString(5, 5, "LoRa Sender");
display.display();
//lora
SPI.begin(5, 19, 27, 18);
LoRa.setPins(SS, RST, DI0);
Serial.println("LoRa Sender");
if (!LoRa.begin(BAND)) {
Serial.println("Starting LoRa failed!");
while (1);
}
Serial.println("LoRa Initial OK!");
display.drawString(5, 20, "LoRa Initializing OK!");
display.display();
delay(10);
}
void loop() {
hall.update();
if(hall.rose()){
counter++;
}
if(millis() - rpmTimer > rpmInterval){
float rpm = counter * 60;
float rph = rpm * 60;
float dia = 0.00004349;
float cir = dia * 3.14;
float totalMPH = rph * cir;
Serial.println(totalMPH);
rpmTimer = millis();
counter = 0;
//sending packet
LoRa.beginPacket();
LoRa.print("MPH: " + String(totalMPH));
LoRa.endPacket();
//LoRa.sleep(); //puts lora receiver to sleep probably dont need
digitalWrite(25, HIGH); // turn the LED on (HIGH is the voltage level)
delay(10); // wait for a second
digitalWrite(25, LOW); // turn the LED off by making the voltage LOW
delay(100); // wait for a second
//delay(300);
}
}
In terms of wire-based API design:
// packet is the packet from the transmitter
String packet = "S12.5"
String measurement = packet.substring(0, 1); // "S"
if (measurement == "S") {
// at this point we know that the rest of the message is the MPH
String data = packet.substring(1, strlen(packet)-1); // "12.5"
float mph = data.toFloat();
if (mph >= TOP_SPEED) {
doSomething();
}
else {
doSomethingElse();
}
}
you could use charAt(0) to get the measurement instead of substring() if you know there are less than 25 sensors on the network.
each measurement would have its own char at the start of message and the data that related to that measurement would immediately follow. The sender and receiver are therefore interacting like a client/server in an API exchange. There is an implicit contract between them such that, when the transmitter says "S12.5", the receiver knows that means 12.5MPH. It's your system so you can design the communication packets any way you like.
I got this ESP32 Radio source code from this site.
I love it because its very simple radio and works fine on ESP32.
But sometime the sound is very choppy.
I suspect maybe because a lack of proper buffers, but I don't know how to fix it.
The code:
/*
WITHOUT OLED, only ESP32 & VS1053
VS1053 - connections detail
XRST = EN (D3)
MISO = D19
MOSI = D23
SCLK = D18
VCC = 5V / 3.3 V
Gnd = Gnd
*/
#include <VS1053.h> //ESP_VS1053_Library
#include <Preferences.h> //For reading and writing into the ROM memory
Preferences preferences;
unsigned int counter,old_counter,new_counter;
#include "helloMp3.h"
#include <WiFi.h>
#include <HTTPClient.h>
#include <esp_wifi.h>
char ssid[] = "SSID"; // your network SSID (name)
char pass[] = "PASSWORD"; // your network password
char *host[7] = {"184.95.47.178","us4.internet-radio.com","us3.internet-radio.com","us3.internet-radio.com","174.36.206.197","sj64.hnux.com","uk7.internet-radio.com"};
char *path[7] = {"/","/","/live.m3u","/","/","/","/"};
int port[7] = {9328,8266,8371,8297,8000,80,8226};
char *sname[7] = {"Love-Radio-USA","Smooth-Jazz-Florida","Best-Rock-Radio","Country-Radio","Venice-Classic-Radio","Smooth-Jazz-Global","UK-Top-40"};
int change=13;
bool x=true;
int status = WL_IDLE_STATUS;
WiFiClient client;
uint8_t mp3buff[32]; // vs1053 likes 32 bytes at a time
// Wiring of VS1053 board (SPI connected in a standard way)
#define VS1053_CS 32 //32
#define VS1053_DCS 33 //33
#define VS1053_DREQ 35 //15
#define VOLUME 100 // volume level 0-100
VS1053 player(VS1053_CS, VS1053_DCS, VS1053_DREQ);
void setup () {
pinMode(change,INPUT_PULLUP);
// initialize SPI
Serial.begin(115200);
delay(500);
// initialize SPI bus;
SPI.begin();
// initialize VS1053 player
player.begin();
// player.switchToMp3Mode(); // optional, some boards require this
player.setVolume(VOLUME);
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
// display.drawString(0,15," Connecting..");
delay(500);
Serial.print(".");
}
Serial.println("WiFi connected");
Serial.print("IP address:");
Serial.println(WiFi.localIP());
preferences.begin("my-app", false);
counter = preferences.getUInt("counter", 0);
old_counter=counter;
Serial.printf("Current counter value1: %u\n", counter);
//if(counter>0) counter=0;
//Serial.printf("Current counter value2: %u\n", counter);
delay(100);
player.playChunk(hello2, sizeof(hello2)); //VS1053 is wake up & running
station_connect(counter);
}
void loop() {
if (client.available() > 0) {
uint8_t bytesread = client.read(mp3buff, 32);
player.playChunk(mp3buff, bytesread);
}
if(digitalRead(change)==0 and x==true){
x=false;
counter = counter+1;
if(counter>6) counter=0;
preferences.putUInt("counter",counter);
new_counter=counter;
Serial.printf("Old_Counter: %u\n",old_counter);
Serial.printf("New_Counter: %u\n",new_counter);
Serial.printf("Set counter to new_value: %u\n", counter);
delay(500);
if(old_counter != new_counter) {
player.softReset();
x=true;
station_connect(new_counter);
preferences.putUInt("counter",new_counter);
}
}
}
void station_connect (int station_no ) {
if (client.connect(host[station_no],port[station_no]) ) {
Serial.println("Connected now");
}
Serial.print(host[station_no]);
Serial.println(path[station_no]);
Serial.println(sname[station_no]);
client.print(String("GET ") + path[station_no] + " HTTP/1.1\r\n" +
"Host: " + host[station_no] + "\r\n" +
"Connection: close\r\n\r\n");
}
How to improve the sound quality? Please help
Thanks for all the helpers! :)
I am using a SIM900A GSM module and a NEO-6m GPS module. I want to send the location via the GSM module when the GSM module receives a message.
My code is working when I am receiving and sending any message with the help of the GSM module, but it is not working when I join the two, i.e. GPS and GSM modules.
Here is my code for the two.
#include <SoftwareSerial.h>
// GPS
#include <TinyGPS.h>
// GSM
SoftwareSerial SIM900A(9, 10);
SoftwareSerial mySerial(5, 6);
TinyGPS gps;
void setup() {
Serial.begin(9600);
SIM900A.begin(9600);
SIM900A.println("AT+CNMI=2,2,0,0,0");
mySerial.begin(9600);
delay(1000);
}
void loop() {
bool newdata = false;
String buffer = readSIM900A();
if(SIM900A.available() > 0)
Serial.println(SIM900A.read());
if (buffer.startsWith("\r\n+CMT: ")) {
// printing the number
Serial.println(buffer.substring(9, 22));
// Remove first 51 characters
// buffer.remove(0, 51);
int len = buffer.length();
// printing message
Serial.println(buffer.substring(51, len-2));
if (buffer.substring(51, len-2) == "location") {
Serial.println("Sending location");
// GPS
if (mySerial.available()) {
char c = mySerial.read();
if (gps.encode(c)) {
newdata = true;
}
}
if (newdata) {
long int lat, lon;
unsigned long age, age1, date, time, chars;
gps.get_position(&lat, &lon, &age);
gps.get_datetime(&date, &time, &age);
Serial.print("Lat/Long(10^-5 deg): ");
Serial.print(lat);
Serial.print(", ");
Serial.print(lon);
Serial.print(" Fix age: ");
Serial.print(age); Serial.println("ms.");
Serial.print("Date(ddmmyy): "); Serial.print(date);
Serial.print(" Time(hhmmsscc): ");
Serial.print(time);
Serial.print(" Fix age: "); Serial.print(age);
Serial.println("ms.");
Serial.print("Alt(cm): "); Serial.print(gps.altitude());
Serial.print(" Speed(mps): "); Serial.print(gps.f_speed_mps());
// setting GSM module
SIM900A.println("AT+CMGF=1"); //Sets the GSM Module in Text Mode
delay(1000); // Delay of 1000 milli seconds or 1 second
// sending location from which code word had come
SIM900A.println("AT+CMGS=\"" + buffer.substring(9, 22) + "\"\r");
// Replace x with mobile number
Serial.println("AT+CMGS=\"" + buffer.substring(9, 22) + "\"\r");
delay(1000);
SIM900A.print("Lat/Long(10^-5 deg): ");
SIM900A.print(lat);
SIM900A.print(", ");
SIM900A.print(lon);
SIM900A.print(" Fix age: ");
SIM900A.print(age); SIM900A.println("ms.");
SIM900A.print("Date(ddmmyy): "); SIM900A.print(date);
SIM900A.print(" Time(hhmmsscc): ");
SIM900A.print(time);
SIM900A.print(" Fix age: "); SIM900A.print(age);
SIM900A.println("ms.");
SIM900A.print("Alt(cm): "); SIM900A.print(gps.altitude());
SIM900A.print(" Speed(mps): "); SIM900A.print(gps.f_speed_mps());
SIM900A.println((char)26);// ASCII code of CTRL+Z
delay(1000);
}
}
}
delay(100);
}
String readSIM900A() {
String buffer;
while (SIM900A.available()) {
char c = SIM900A.read();
buffer.concat(c);
delay(10);
}
return buffer;
}
Above is my final code when the GPS and GSM modules are handled together. They are working totally fine when they are handled separately.
Connections:
Connected Tx, Rx pin of SIM900A to 9, 10 of Arduino Nano respectively, and Tx, Rx of GPS module to 5, 6 respectively. And I also made ground common with Arduino.
#include <NeoSWSerial.h>
//#include <SoftwareSerial.h>
#include <AltSoftSerial.h>
// GPS
#include <TinyGPS.h>
// GSM
static const int RXPin = 8, TXPin = 9;
AltSoftSerial SIM900A(RXPin, TXPin);
NeoSWSerial mySerial(5, 6);
TinyGPS gps;
void setup()
{
Serial.begin(9600);
SIM900A.begin(9600);
SIM900A.println("AT+CNMI=2,2,0,0,0");
mySerial.begin(9600);
delay(1000);
}
void loop()
{
bool newdata = false;
String buffer = readSIM900A();
if(SIM900A.available() > 0)
Serial.println(SIM900A.read());
if (buffer.startsWith("\r\n+CMT: "))
{
// printing the number
Serial.println(buffer.substring(9, 22));
// Remove first 51 characters
// buffer.remove(0, 51);
int len = buffer.length();
// Remove \r\n from tail
// buffer.remove(len - 2, 2);
// printing message
Serial.println(buffer.substring(51, len-2));
if (buffer.substring(51, len-2) == "location")
{
Serial.println("Sending location");
// GPS
if (mySerial.available())
{
char c = mySerial.read();
if (gps.encode(c))
{
newdata = true;
}
}
if (newdata)
{
long int lat, lon;
unsigned long age, age1, date, time, chars;
gps.get_position(&lat, &lon, &age);
gps.get_datetime(&date, &time, &age);
Serial.print("Lat/Long(10^-5 deg): ");
Serial.print(lat);
Serial.print(", ");
Serial.print(lon);
Serial.print(" Fix age: ");
Serial.print(age); Serial.println("ms.");
Serial.print("Date(ddmmyy): "); Serial.print(date); Serial.print("
Time(hhmmsscc): ");
Serial.print(time);
Serial.print(" Fix age: "); Serial.print(age);
Serial.println("ms.");
Serial.print("Alt(cm): "); Serial.print(gps.altitude());
Serial.print(" Speed(mps): "); Serial.print(gps.f_speed_mps());
// setting GSM module
SIM900A.println("AT+CMGF=1"); //Sets the GSM Module in Text Mode
delay(1000); // Delay of 1000 milli seconds or 1 second
// sending location from which code word had come
SIM900A.println("AT+CMGS=\"" + buffer.substring(9, 22) + "\"\r"); //
Replace x with mobile number
Serial.println("AT+CMGS=\"" + buffer.substring(9, 22) + "\"\r");
delay(1000);
SIM900A.print("Lat/Long(10^-5 deg): ");
SIM900A.print(lat);
SIM900A.print(", ");
SIM900A.print(lon);
SIM900A.print(" Fix age: ");
SIM900A.print(age); SIM900A.println("ms.");
SIM900A.print("Date(ddmmyy): "); SIM900A.print(date);
SIM900A.print(" Time(hhmmsscc): ");
SIM900A.print(time);
SIM900A.print(" Fix age: "); SIM900A.print(age);
SIM900A.println("ms.");
SIM900A.print("Alt(cm): "); SIM900A.print(gps.altitude());
SIM900A.print(" Speed(mps): "); SIM900A.print(gps.f_speed_mps());
SIM900A.println((char)26);// ASCII code of CTRL+Z
delay(1000);
}
}
}
delay(100);
}
String readSIM900A()
{
String buffer;
while (SIM900A.available())
{
char c = SIM900A.read();
buffer.concat(c);
delay(10);
}
return buffer;
}
P.S : I have changed the pins for GSM and rest part is same. Except adding AltSoftSerial it is a library same as SoftwareSerial (Download it from manage libraries and it requires pins 8 and 9). Don't change pin number in sketch change the connections.
I got some problem about reading from MPU6050 and then write to SD card.
Actually I could successfully do the read-and-write, but I found Arduino UNO can't count over 14464!?
I set every line of my data that is:
count, time(millis()), ax, ay, az, gx, gy, gz
It could record the data right till count to 14464 (I) and it will end the loop automated.
It really bothers me... and it seems no one face this problem before.
Here is my code:
#include "I2Cdev.h"
#include "MPU6050.h"
#if I2CDEV_IMPLEMENTATION == I2CDEV_ARDUINO_WIRE
#include "Wire.h"
#endif
MPU6050 accelgyro;
//SD card here
#include <SPI.h>
#include <SD.h>
File myFile;
//////////Global Variable Here//////////
int16_t ax, ay, az;
int16_t gx, gy, gz;
int count = 1;
//set sec & count_limit
int set_time = 1000 * 60;
int count_limit = 80000;
int BTN = 7;
// uncomment "OUTPUT_READABLE_ACCELGYRO" if you want to see a tab-separated
// list of the accel X/Y/Z and then gyro X/Y/Z values in decimal. Easy to read,
// not so easy to parse, and slow(er) over UART.
#define OUTPUT_READABLE_ACCELGYRO
//Set LED
#define R_PIN 8
#define G_PIN 9
bool blinkState_R = false;
bool blinkState_G = false;
void setup() {
// configure Arduino LED for
pinMode(R_PIN, OUTPUT);
pinMode(G_PIN, OUTPUT);
pinMode(BTN, INPUT);
digitalWrite(G_PIN, HIGH);
// join I2C bus (I2Cdev library doesn't do this automatically)
#if I2CDEV_IMPLEMENTATION == I2CDEV_ARDUINO_WIRE
Wire.begin();
#elif I2CDEV_IMPLEMENTATION == I2CDEV_BUILTIN_FASTWIRE
Fastwire::setup(400, true);
#endif
// initialize serial communication
// (38400 chosen because it works as well at 8MHz as it does at 16MHz, but
// it's really up to you depending on your project)
Serial.begin(38400);
// initialize device
Serial.println("Initializing I2C devices...");
accelgyro.initialize();
accelgyro.setFullScaleAccelRange(MPU6050_ACCEL_FS_2);
// verify connection
Serial.println("Testing device connections...");
Serial.println(accelgyro.testConnection() ? "MPU6050 connection successful" : "MPU6050 connection failed");
// use the code below to change accel/gyro offset values
accelgyro.setXGyroOffset(59);
accelgyro.setYGyroOffset(42);
accelgyro.setZGyroOffset(-8);
accelgyro.setXAccelOffset(1359);
accelgyro.setYAccelOffset(-1620);
accelgyro.setZAccelOffset(1917);
/////////////////////////////////////////////////////////////////////
//SD card Initailize
/////////////////////////////////////////////////////////////////////
Serial.print("Initializing SD card...");
if (!SD.begin(4)) {
Serial.println("initialization failed!");
digitalWrite(R_PIN, HIGH);
return;
}
Serial.println("initialization done.");
digitalWrite(R_PIN, LOW);
if (SD.exists("example.txt")) {
Serial.println("example.txt exists.");
}
else {
Serial.println("example.txt doesn't exist.");
}
// open a new file and immediately close it:
Serial.println("Creating example.txt...");
myFile = SD.open("example.txt", FILE_WRITE);
myFile.close();
// Check to see if the file exists:
if (SD.exists("example.txt")) {
Serial.println("example.txt exists.");
}
else {
Serial.println("example.txt doesn't exist.");
}
// delete the file:
Serial.println("Removing example.txt...");
SD.remove("example.txt");
if (SD.exists("example.txt")) {
Serial.println("example.txt exists.");
}
else {
Serial.println("example.txt doesn't exist.");
}
delay(3000);
////////////////////////////////////////////////////////////////////////////////
//SD END
////////////////////////////////////////////////////////////////////////////////
digitalWrite(G_PIN, LOW);
}
void loop() {
// read raw accel/gyro measurements from device
accelgyro.getMotion6(&ax, &ay, &az, &gx, &gy, &gz);
blinkState_R = !blinkState_R;
digitalWrite(R_PIN, blinkState_R);
// these methods (and a few others) are also available
//accelgyro.getAcceleration(&ax, &ay, &az);
//accelgyro.getRotation(&gx, &gy, &gz);
////////////////////////////////////////////
// Write to SD Card
///////////////////////////////////////////
// write data to file
if(count <= count_limit ){
myFile = SD.open("IMU_LOG.txt", FILE_WRITE);
Serial.print(count);Serial.print("\t"); myFile.print(count); myFile.print("\t");
Serial.print(millis()); Serial.print("\t"); myFile.print(millis()); myFile.print("\t");
Serial.print(ax); Serial.print("\t"); myFile.print(ax); myFile.print("\t");
Serial.print(ay); Serial.print("\t"); myFile.print(ay); myFile.print("\t");
Serial.print(az); Serial.print("\t"); myFile.print(az); myFile.print("\t");
Serial.print(gx); Serial.print("\t"); myFile.print(gx); myFile.print("\t");
Serial.print(gy); Serial.print("\t"); myFile.print(gy); myFile.print("\t");
Serial.print(gz); Serial.print("\n"); myFile.print(gz); myFile.print("\n");
myFile.close();
delay(5);
blinkState_G = !blinkState_G;
digitalWrite(G_PIN, blinkState_G);
}else{
while(1){
Serial.print("Process done.\n");
digitalWrite(G_PIN, OUTPUT);
delay(2000);
}
count= count + 1 ;
}
You should be getting a compiler warning here.
int count_limit = 80000;
The maximum value of int on your platform is 32,767. When you set an int to something larger, the behavior is undefined, which is bad news because it means that your program is incorrect.
In this particular case, you might notice that 80000 = 14464 + 216, which explains why it stopped at 14464, if int is 16 bits long.
You will need to use long if you want to count higher than 65,535.
long count_limit = 80000L;
long count = 1;