New GPS module--Tiny 10Hz Mediatek unit (just $38.95!)

Great news! Jordi has now released the awesome new (and tiny!) 10Hz Mediatek GPS module attached to an adapter that makes it 100% ArduPilot (and ArduIMU and ArduPilot Mega) compatible. All in one--no soldering required--and you won't believe how small it is! (And just $38.95!) It's preloaded with custom DIY Drones firmware so it outputs an efficient binary protocol optimized for UAV use. Sample code is provide here and will be added to ArduPilot, ArduIMU and ArduPilot Mega over the next month.

We like this one a lot. It's nearly as good as the uBlox module, but cheaper and smaller. We'll be supporting it as a recommended GPS module going forward.

Here's the product description:


State-of-the-art 66 channels MediaTek MT3329 GPS Engine

High sensitivity: Up to -165dBm tracking, superior urban performance
USB/UART Interface
Build-in patch antenna for optimal sensitivity
DGPS(WAAS, EGNOS, MSAS) support (optional by firmware)
Maximum update rate : up to 10Hz (optional by firmware)
RoHS compliant

Note that the new MediaTek has custom and exclusive "DIYDrones" firmware that allows the unit to output an efficient and very compressed binary protocol. You can still change between NMEA and Binary protocol with standard MTK messages, and switch the refresh rate between 1hz to 10hz, or set any standard serial baud rate (by default is set to 38400 bps and custom binary protocol).

Features:
-Based on MediaTek Single Chip Architecture.
-Dimension:16mm x 16mm x 6mm
-L1 Frequency, C/A code, 66 channels
-High Sensitivity:Up to -165dBm tracking, superior urban performances
-Position Accuracy:< 3m CEP (50%) without SA (horizontal)
-Cold Start is under 35 seconds (Typical)
-Warm Start is under 34 seconds (Typical)
-Hot Start is under 1 second (Typical)
-Low Power Consumption:48mA @ acquisition, 37mA @ tracking
-Low shut-down current consumption:15uA, typical
-DGPS(WAAS, EGNOS, MSAS) support (optional by firmware)
-USB/UART Interface
-Support AGPS function ( Offline mode : EPO valid up to 14 days )

Views: 2757


Distributor
Comment by AKRCGUY on June 24, 2010 at 8:03pm
Do you know if this could be a replacement for the unit Range Video Sells here:


Distributor
Comment by AKRCGUY on June 24, 2010 at 8:04pm

3D Robotics
Comment by Chris Anderson on June 24, 2010 at 8:14pm
I suspect the Rangeview module is plain NMEA. That's fine for OSD, but not best for UAV use. You'd need to reprogram ours to NMEA mode to use with the Rangevideo OSDs.

3D Robotics
Comment by Jordi Muñoz on June 24, 2010 at 8:28pm
And ours have rechargable coin battery....
Comment by Jhon on June 24, 2010 at 8:55pm
how well this gps support RFI ? because i have the same one from flytron, with simpleosd xl and it get messed by the most tiny RFI from DC/DC reg of camera, or any other noise source
Comment by Lew Payne on June 24, 2010 at 11:49pm
"Note that the new MediaTek has custom and exclusive "DIYDrones" firmware that allows the unit to output an efficient and very compressed binary protocol."

Jordi, where can we find the documentation on the "custom and exclusive" binary protocol? Since it was mask programmed exclusively for DIYDrones, and you're selling it (as well as the MT3329 without the board), then I imagine you'd already have the documentation for the binary protocol. Please post a link to it... the link in the store is just to the "standard" version.

How did you get the manufacturer to crank out "customized for DIYDrones" versions of their firmware, without committing to huge (100,000+) quantities? Also, in order for the manufacturer to customize it, you must have given them some specs as to what you wanted the binary protocol to look like. In other words, if it was customized to your specifications, then by definition you already have those specifications. Could you post them (the binary protocol), please?

Or is there more to this than meets the eye?
Comment by Wallace Edwards on June 25, 2010 at 12:02am
Is it possible to program and existing Media Tek with the "custom and exclusive" binary protocol?

Will the adapter board be sold seperately?

Where is coin battery?

Nice job Guys! That was really quick.

Regards Wallace
Comment by Lew Payne on June 25, 2010 at 12:08am
"We like this one a lot. It's nearly as good as the uBlox module, but cheaper and smaller."

Chris - What is the factual basis for your claim? The Sparkfun tests (as opposed to subjective opinion or just plain conjecture) clearly show that the older MediaTek MT3318 with a passive antenna outperforms the U-Blox even with an active antenna. What is the basis for your claim?

Also, what is your definition of "nearly as good?" I have difficulty following flowery generalizations using vague and ambiguous terms, especially when claims are being made that go against the grain of formal tests.

3D Robotics
Comment by Chris Anderson on June 25, 2010 at 4:48am
Lew, personal experience. Sorry you don't like my chatty blog posts. I'll try to write only in precision scientific language going forward, just to make you happier.
Comment by Tony H on June 25, 2010 at 5:39am
I ordered this from the store last night. Now, I'm looking at it again...do I need an adapter cable with the jst plugs to connect it to the ArduPilot Mega/Oil Pan, or does it solder on?

Comment

You need to be a member of DIY Drones to add comments!

Join DIY Drones

© 2014   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service