OUTATIME88

Sorry, I should have explained how it works. Just place or drive the robot at the waypoint and press Set Waypoint, then repeat this process for each waypoint. I think I programmed it to store up to 5 waypoints. When done with saving the waypoints, press Done. Then press the Go to Waypoint Button and it will go to the first waypoint that you set. Press it again for each waypoint in order. Thanks

I just uploaded it to GitHub

The vendor that I purchased it from no longer sells the compass; however, the compass I use is labeled gy-271 and gy-273. You don't have to use one of these but by doing so you would not have to change the code any. The reason why you would want to find one of these is because of the HMC5883L Library that I chose to use. The reason I chose that Library is because of the calibration sketch included with the library. This sketch makes it easy to calibrate the compass and get the offsets needed, otherwise the compass heading could be off severely. You could use a different compass but you would need to include a different library and make the necessary changes to the code.

Yes, it should work fine.

https://github.com/mkconer/ESP8266_GPS

Did you select the Arduino Mega from the drop down list in the Arduino IDE?

I have actually used many compasses. In the Instructable and YouTube videos I go into detail about the compass. Many of the problems people have with the compass is that it is not calibrated. If you are getting data, but it just inaccurate...it is probably because it needs to be calibrated.

No, not really, not without modifying the code and the wiring. The mega is only a few bucks more. Much easier just to build it as is and modify later.

It sounds like you did not select the Arduino Mega as the board you are compiling for in the Arduino IDE. In the IDE, Go to Tools\ Board and select "Arduino Mega 2560".Also, make sure you didn't change any of the code, and make sure all of the code is there...you should see several Tabs Labeled - Bluetooth, Startup, GPS Compass, etc.

Just a cheap Chinese version, don't forget to calibrate it.

If your referring to the include statement "I2C library" in my code, just comment that out. It's not needed. Also, the software serial library is not needed either.

Glad to hear it!

Cool! Glad to see you got it working and could use it. Thanks for the response!Mark

I would say to make sure you are connecting up to the Adafruit IO server, try one of the Adafruit examples first. Start small, upload something simple. Make sure you have entered the correct Adafruit username and AIO Key in the code. Also, the same applies to the WiFi modem. Make sure you have entered the proper SSID and password in the code. Also, your firewall may be blocking you as well. Take it down, temporarily of course, until you can eliminate that as a possibility. Good luck! Hope you get it working!

You are absolutely right! Thanks for pointing out my mistake.

https://github.com/adafruit/Adafruit_SSD1306This is the one I used from GithubIt is named Adafruit_ssd1306syp in my libraries folder

Thanks for the compliment gazman321, you can copy and paste the code from above or you can download it from GitHub here is the link.https://github.com/mkconer/ESP8266_GPSGood Luck with the project!