Accurate GPS to use with remote control boat

I want to use the Ardupilot on my remote control boat but I need an accurate GPS (+/- 2metres if poss)

I need it to be compatible with the Ardupilot - Arduino compatible UAV controller w/ATMega328 PCB

Has anyone got a GPS they can recommend to do the job.

I just need it to plot wavepoints so I can resend my remote control boat back to the same wavepoint at a later date.

Hope this makes sense.

Also can anyone tell me the power consumption of these GPS's as I would like to run the whole project off the exsisting 12v Battery that currently powers the servo,x2 jet pumps etc.Would 12v be to much for the Ardupilot board ? If worse comes to worse I could always fit another power supply inside the boat (Any advice would be great)

Thanks

Hadleigh

12V will fry the APM, it runs on the normal 5V power you should be getting from your ESC/BEC.

The thing about waves is that they travel, so there's no way to get "back to the same wavepoint".

Look up the current consumption in the GPS datasheets, there's no way to name off the power consumption of every GPS out there. You're also not going to get 2m accuracy, most decent ones now claim 3m. The 3m is also calculated at the 75% confidence level. That means 75% of the time it will be within 3m. All of that is also figured with a completely clear view of the sky, no radio interference, and a clean power supply. Likely you'll have none of those factors in your favor. That said, they're still pretty darn accurate most of the time.

I have two mediatek chipset GPS modules, they usually work pretty well. Ublox also comes highly recommended by most UAV enthusiasts.

Replies

Jake Stew May 16, 2012 at 9:18am

12V will fry the APM, it runs on the normal 5V power you should be getting from your ESC/BEC.

The thing about waves is that they travel, so there's no way to get "back to the same wavepoint".

Look up the current consumption in the GPS datasheets, there's no way to name off the power consumption of every GPS out there. You're also not going to get 2m accuracy, most decent ones now claim 3m. The 3m is also calculated at the 75% confidence level. That means 75% of the time it will be within 3m. All of that is also figured with a completely clear view of the sky, no radio interference, and a clean power supply. Likely you'll have none of those factors in your favor. That said, they're still pretty darn accurate most of the time.

I have two mediatek chipset GPS modules, they usually work pretty well. Ublox also comes highly recommended by most UAV enthusiasts.

This reply was deleted.

Discussions

Accurate GPS to use with remote control boat

Replies

Activity