tinygp | The tiniest of Gaussian Process libraries | Analytics library

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So this:

Is there any particular reason you are using a software serial on pins 10 and 11? SS is based on bit-banging the UART signal, it works okay for low baud rates such as 9600, but 115200 is probably beyond its limits.

You could try connecting the GPS to one of 4 hardware serial ports, for example Serial1 (TX on 18 and RX on 19). This will require some modifications to the code:

• remove static const int RXPin = 10, TXPin = 11; and SoftwareSerial ss(RXPin, TXPin);

• in void setup() change ss.begin(GPSBaud) to Serial1.begin(GPSBaud)

• in smartDelay function replace ss.available() with Serial1.available() and ss.read() with Serial1.read()

To me it looks like the GPS module is sending data properly, but hasn't got any available. It could still be looking for satellites. You can try printing the number of available ones, and simply wait longer:

Add the following lines to your program before your if statement:

The value of baud must be set to the same value like setting of module NEO-7. As far as I can see, 9600 is the default value for it and you don't need to use any others. But you can check exactly what value is set for the module.

I'm not sure, but have you tried the following code? Or this example as is.

As pointed out by Juraj as comment to the question, I was using the wrong print command.

There are many ways to implement this but roughly speaking there are several problems to solve:

1. Read GPS data and make this accessible remotely
2. Fetch the data in the MIT app
3. (Bonus - part of the question in the comment) Lookup the address for the co-ordinates and display in the map

The example below implements a minumum solution and assumes that the MIT app has access to the ESP8266 on the same network.

The ESP8266 can read the GPS data in a loop and make this accessible via the ESP8266WebServer. Here we implement a REST endpoint that returns the location as a JSON payload. So this location is available when a client does an HTTP GET on http://esp8266-ip-address/location.

You can test this with:

You have a big issue, you never get the data from your GPS object into your variables. Do is as follows:

Not knowing which ESP32 Module you use exactly, there are two show stoppers

NEO-6M GPS Module needs 5 V, ESP32 pins deliver max 3.6V - normaly 3.3V
Some ESP32 modules block certain pins to use them for SD card, camera, lcd or other on board features. So look up the datasheet of your esp32 board variant.

The code should be ok if HWSerial2 exists If you use ESP32 version below 1.03 you have to define HWSerial,
ESP32 1.04 up this is not necessary any more

Thanks, that seems to have fixed it. All the tutorials I looked at used delay(), so I didn't think it would affect it