Thread: Ublox Dead Reckoning GPS

Well finally after way too long i've finished my dead reckoning set up.

The old thread that laidback did with his module is here. But I figured it was time for me to get my own thread.

But the project in a nutshell is that Ublox makes a dead reckoning module, but the problem is that it needs a carrier board to hold the TTL to RS-232 converter, backup battery and gyro. So I created one.

Also for those of you that want to know what dead reckoning is, basically by using speed pulses from your car and the onboard gyro, the GPS module can guess where you are going, so if you are driving around in a big city with lots of tall buildings, even if you lose GPS signal the module will still output your current speed and position. Yes it may not be as accurate, but will be much better than your position just stopping on the map where you lost signal.

I still need to install the module into a case and get it wired into the car. But so far as is good with it.

On to the pictures!


As you can see the carrier board is not much bigger than the module itself.














Also if anyone wants schematics and PCB layouts for the daughterboard they are more than welcome to them, just shoot me a PM.