Comments on High On Solder: GPS Receiver (Part 2)

embedded,This code should work fine with any PIC, ...

2008-07-17T08:43:00.000-05:00

embedded,
This code should work fine with any PIC, assuming it is feature comparable. However, you will probably have to modify the I/O port initialization code to match the 16F877A.

can the project be done with pic16f877a?

2008-07-17T07:57:00.000-05:00

can the project be done with pic16f877a?

Nice writeup. Just a note to help clarify for oth...

2008-07-11T14:33:00.000-05:00

Nice writeup.

Just a note to help clarify for others perhaps, it seems the units in use might be misleading to some. The distance between latitude lines (you refer to them as degrees, they are also called meridians) is totally dependant upon one's location on the face of the Earth (and in 3D space to boot). Think of the distance between meridians at one of the North or South poles and that of at the equator.

Also, distance can be as the crow flies or over land. The later clearly depends upon terrain and the shape of the Earth, which of course is not a sphere. Position in three dimensions matters when detemrining distance to some other point in space.

Not trying to rain on anyone's parade, just trying to make it clear that using those units will only be accurate at very specific places on the Earth. Investigate map coordinate systems, projections and datums for more.

Have fun!

Davide,As you can see in the original code, comman...

2008-04-02T07:24:00.000-05:00

Davide,

As you can see in the original code, commands for the GPS are based off of hex values which are taken from the GPS unit's data sheet. If you want to use a different GPS unit check the data sheet and modify the command values as necessary. Otherwise you could have some miscommunication between the PIC and the GPS.

Hallo Joe,but the code for PIC are OK for another ...

2008-04-02T01:03:00.000-05:00

Hallo Joe,
but the code for PIC are OK for another GPS receiver or only for Parallax model?
Thank you.Davide from Italy.

Hi Joe,Thanks for posting this project. Have you ...

2008-01-14T23:33:00.000-05:00

Hi Joe,

Thanks for posting this project. Have you thought about adding data logging to it via eeprom? I am new to PICBASIC and appreciate the straight forward code. Your code is real easy to read, compact, and gives me a good starting point.

Andrew,I am not familiar with that particular LCD....

2007-10-26T07:17:00.000-05:00

Andrew,
I am not familiar with that particular LCD. I would assume there is a way to use it in the same way I used the Parallax LCD. You should look for your particular LCD's data-sheet and check for any operational information to help guide you in how it should be wired and if the commands are any different. Sorry I couldn't be of more assistance.

Hi joe,i have build the circuit but the problem is...

2007-10-26T02:17:00.000-05:00

Hi joe,i have build the circuit but the problem is parallax 2x16 lcd is not available in my location.I can only get a normal 2x16 lcd without the rx port that is available with parallax lcd.The lcd module i'm using is JHD-12232D,can i integrate with this lcd and make it to work?