I am trying to track the GPS but i am not able to receive my longitude and latitude data.
I am using "Adafruit Ultimate GPS Breakout V3" GPS module and "Arduino UNO R3"
Here is my code. I have tried both
:::First Code:::
#include <SoftwareSerial.h>
#include <TinyGPS.h>
long flat, flon;
SoftwareSerial gpsSerial(2, 3); // Create GPS pin connection
TinyGPS gps;
void setup(){
Serial.begin(9600); // connection serial
gpsSerial.begin(9600); // gps burd rate
}
void loop(){
while(gpsSerial.available()){ // check for gps data
if(gps.encode(gpsSerial.read())){ // encode gps data
gps.get_position(&flat, &flon); // get lattitude and longitude
// display position
Serial.print("Position: ");
Serial.print("lat: ");Serial.println(flat);
Serial.print("lon: ");Serial.println(flon);
}
}
}
:::Second Code:::
#include <SoftwareSerial.h>
#include <TinyGPS++.h>
#define RXPin 3
#define TXPin 4
#define GPSBaud 9600
#define ConsoleBaud 115200
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
// The TinyGPS++ object
TinyGPSPlus gps;
void setup(){
Serial.begin(ConsoleBaud);
ss.begin(GPSBaud);
Serial.println("GPS Example 2");
Serial.println("A simple tracker using TinyGPS++.");
Serial.println();
}
void loop(){
// If any characters have arrived from the GPS,
// send them to the TinyGPS++ object
while (ss.available() > 0)
gps.encode(ss.read());
// Let's display the new location and altitude
// whenever either of them have been updated.
if (gps.location.isUpdated() || gps.altitude.isUpdated()){
Serial.print("Location: ");
Serial.print(gps.location.lat(), 6);
Serial.print(",");
Serial.print(gps.location.lng(), 6);
Serial.print(" Altitude: ");
Serial.println(gps.altitude.meters());
}
}
Which pins are you using? The first code shows 2&3, but the second shows 3&4. And remember, the GPS TX pin goes to the Arduino RX pin. Likewise, the GPS RX pin goes to the Arduino TX pin. For the first code, the GPS TX pin should be connected to Arduino pin 2.
Are you inside? You probably have to be outside, or at least near some windows for the GPS device to receive from the satellites. It could take 15 minutes for the first fix to happen.
Although you don't show any output, you should try a simple echo program first, to see if the GPS device is sending anything.
#include <NeoSWSerial.h>
NeoSWSerial gpsSerial( 2, 3 );
void setup()
{
Serial.begin( 9600 );
gpsSerial.begin( 9600 );
}
void loop()
{
if (gpsSerial.available())
Serial.write( gpsSerial.read() );
}
I would also recommend getting the NeoSWSerial library. It's my library, and it's much more efficient and reliable than SoftwareSerial.
Related
today I wanted to try to use a oled display with esp8266 using arduino language. Before I always used micropython to use an oled display. I had written a long code but it kept showing error. Then I decided to comment out the code that I used for the oled display. Then the error disappeared. Can someone please help me solve that problem?
My code :
#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
//netwok
const char* ssid = "Iffaiman";
const char* password = "iffaiman313";
//oled var
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
void setup() {
Serial.begin(115200);
delay(1000);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
display.println("Hello, world!");
display.display();
}
void loop() {
}
The error message:
xception (28): epc1=0x40201e0a epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000
I tried to remove any optional code but it didn't help.
Your code is crashing because you're not calling the begin() method on the display object. That means it's not initialized, so its behavior is undefined.
You need to call the begin() method before doing anything else with the display.
Serial.println("Connected to WiFi");
if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
Serial.println("Can't find display");
while(1)
yield();
}
display.println("Hello, world!");
display.display();
SCREEN_ADDRESS should be the I2C address of the SSD1306, either 0x3C or 0x3D.
Adafruit publishes extensive examples and tutorials on how to use their products and libraries. These are a very good place to start when you're having problems with the hardware or software.
#include <Wire.h>
#include "MAX30100_PulseOximeter.h"
#define REPORTING_PERIOD_MS 1000
// PulseOximeter is the higher level interface to the sensor
// it offers:
// * beat detection reporting
// * heart rate calculation
// * SpO2 (oxidation level) calculation
PulseOximeter pox;
uint32_t tsLastReport = 0;
// Callback (registered below) fired when a pulse is detected
void onBeatDetected()
{
Serial.println("Beat!");
}
void setup()
{
Serial.begin(115200);
Serial.print("Initializing pulse oximeter..");
// Initialize the PulseOximeter instance
// Failures are generally due to an improper I2C wiring, missing power supply
// or wrong target chip
if (!pox.begin()) {
Serial.println("FAILED");
for(;;);
} else {
Serial.println("SUCCESS");
}
// The default current for the IR LED is 50mA and it could be changed
// by uncommenting the following line. Check MAX30100_Registers.h for all the
// available options.
// pox.setIRLedCurrent(MAX30100_LED_CURR_7_6MA);
// Register a callback for the beat detection
pox.setOnBeatDetectedCallback(onBeatDetected);
}
void loop()
{
// Make sure to call update as fast as possible
pox.update();
// Asynchronously dump heart rate and oxidation levels to the serial
// For both, a value of 0 means "invalid"
if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
Serial.print("Heart rate:");
Serial.print(pox.getHeartRate());
Serial.print("bpm / SpO2:");
Serial.print(pox.getSpO2());
Serial.println("%");
tsLastReport = millis();
}
}
I want to output oxygen saturation with Arduino.
If you run it and turn on the serial monitor, only the Initializing pulse oximeter works, and no data is transmitted after that.
I want to output the values of oxygen saturation and pulse received from the sensor once per second on the serial monitor.
On the circuit playground express theres a network function, where you can send a number through ir. Now I would like my arduino to read this number, and respond when it reads the number.
I've already connected a IR Receiver Diode to my arduino and used the following code with library:
#include <IRremote.h>
int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
}
void loop()
{
if (irrecv.decode(&results))
{
Serial.println(results.value);
irrecv.resume(); // Receive the next value
}
}
The serial monitor, doesn't show the circuit playground number when I send it.
Does somebody now how to read the number send by the circuit playground express?
I am trying to get my arduino uno to display the altitude from a GPS module, without any other data. I am still learning the code, but I've run into a problem where I can't seem to find what command is used to pull the altitude from the GPS string. I know it is pulling the data successfully, as I ran the example code from http://learn.parallax.com/kickstart/28500 and it read the first bit of the string, though I moved onto trying to get the altitude before getting it to scroll the whole string.
I am using a basic 16x2 LCD display, and the display I have working fine.
The end goal of this project is a GPS/gyroscope altimeter that can record to an SD card and record temperature, and deploy a parachute at apogee (15,000ft) and a larger parachute at 1,000ft.
Here is the code I am using for the altitude, I've marked the section I can't figure out. (probably just missing a term, or I might have really messed something up)
Any help would be appreciated, have a great day.
#include <SoftwareSerial.h>
#include "./TinyGPS.h" // Special version for 1.0
#include <LiquidCrystal.h>
TinyGPS gps;
SoftwareSerial nss(0, 255); // Yellow wire to pin 6
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
void gpsdump(TinyGPS &gps);
bool feedgps();
void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);
// initialize the serial communications:
Serial.begin(9600);
Serial.begin(115200);
nss.begin(4800);
lcd.print("Reading GPS");
lcd.write(254); // move cursor to beginning of first line
lcd.write(128);
lcd.write(" "); // clear display
lcd.write(" ");
}
void loop() {
bool newdata = false;
unsigned long start = millis();
while (millis() - start < 5000) { // Update every 5 seconds
if (feedgps())
newdata = true;
}
gpsdump(gps);
}
// Get and process GPS data
void gpsdump(TinyGPS &gps) {
// problem area
float falt, flat, flon;
unsigned long age;
gps.f_get_position(&flat, &flon);
inline long altitude (return _altitude);
long _altitude
;lcd.print(_altitude, 4);
}//end problem area
// Feed data as it becomes available
bool feedgps() {
while (nss.available()) {
if (gps.encode(nss.read()))
return true;
}
return false;
}
lcd.print(x,4) prints base-4. Did you want that, or do you want ordinary base-10 (decimal)?
Secondly, where do you expect _altitude to come from? It's uninitialized. There's also an uninitialized falt, and a weird inline long altitude line which doesn't mean anything.
You might be better of learning C++ first, in a desktop environment. Debugging an embedded device is a lot harder, and you're still producing quite a few bugs.
The UDPSendReceive.pde example bundled with the IDE works fine out of the box and displays the correct output on the serial monitor when it receives UDP packets, but seems to disable all the pinOutputs?
#include <SPI.h> // needed for Arduino versions later than 0018
#include <Ethernet.h>
#include <EthernetUdp.h> // UDP library from: bjoern#cs.stanford.edu 12/30/2008
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192, 168, 1, 177);
unsigned int localPort = 8888; // local port to listen on
// buffers for receiving and sending data
char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,
char ReplyBuffer[] = "acknowledged"; // a string to send back
// An EthernetUDP instance to let us send and receive packets over UDP
EthernetUDP Udp;
void setup() {
// start the Ethernet and UDP:
Ethernet.begin(mac,ip);
Udp.begin(localPort);
Serial.begin(9600);
pinMode(12, OUTPUT);
}
void loop() {
// if there's data available, read a packet
int packetSize = Udp.parsePacket();
if(packetSize)
{
Serial.print("Received packet of size ");
Serial.println(packetSize);
Serial.print("From ");
IPAddress remote = Udp.remoteIP();
for (int i =0; i < 4; i++)
{
Serial.print(remote[i], DEC);
if (i < 3)
{
Serial.print(".");
}
}
Serial.print(", port ");
Serial.println(Udp.remotePort());
// read the packet into packetBufffer
Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE);
Serial.println("Contents:");
Serial.println(packetBuffer);
// send a reply, to the IP address and port that sent us the packet we received
Udp.beginPacket(Udp.remoteIP(), Udp.remotePort());
Udp.write(ReplyBuffer);
Udp.endPacket();
digitalWrite(12, HIGH); // set the LED on
}
delay(10);
}
Even just changing the loop to be
void loop() {
// if there's data available, read a packet
int packetSize = Udp.parsePacket();
if(packetSize)
{
digitalWrite(12, HIGH);
}
means nothing happens on my outputs (in this case an LED)
Update - Just noticed the SPI include in your code.The SPI library uses pin 12 (for MOSI) so its already reserved.
Previous:
Not sure which Ethernet shield/board you are using, but typically they use SPI protocol to communicate over pins 10-13. Pin 12 is used for MISO. (That's Master In, Slave Out - so its used by the Ethernet device (Slave) as output to the Aurduino's in (Master).
So pins 1 thru 9 should be fine to use as an LED indicator.
The information provided by JDH is correct. Ethernet/SPI uses several pins to communicate with the Ethernet shield. The rest are free for your use. See http://arduino.cc/en/Reference/SPI for some details. The Connections section shows what pins are used by several common Arduino boards. For the Uno and Duemilanove it's pins 10-13.