Replies to This Discussion

Permalink Reply by Jake Stew on June 25, 2012 at 10:26pm

Many MediaTek modules are around $25-35 in small orders from many sources.  

For essentially the same specs I wonder why people spend 4-5x as much?  Last time I compared them the only real difference I saw was the antenna options, and I think those can be had in some of the MT modules.

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Permalink Reply by Anant Rao on June 25, 2012 at 10:27pm

mediatek doesn't have i2c interface that we need in our project...also, the positional accuracy of ublox modules and refresh rate is better than mediatek....

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Permalink Reply by Jake Stew on June 25, 2012 at 11:48pm

Last I checked they had 3m and 10hz, same as the media tek.  I'm sure there's other factors also, just curious because a lot of people seem to like them a lot, but I never understood what the differences were.

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Permalink Reply by Dan Manczak on September 20, 2012 at 5:45am

Hi Anant,

Wow! what do u know... I got accepted :)

Anyway...Just following up, on the email i sent earlier today.

Cheers!

 

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Permalink Reply by Anant Rao on September 20, 2012 at 6:53am

Hi Dan,

Are you talking abt email sent to me? Cause I didn't receive any frm u...

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Permalink Reply by Dan Manczak on September 20, 2012 at 8:00am

Hi Anant,

I sent it to your email at carnagie :) But dont know if u are still associated with uni... hmmm...

Anyway I've had problems getting the GPS unit from csgshops to work. I have installed ublox usb driver and eval software on both vista and windows 7 platform... but no success.

have u had any issues with csgshops unit?

Thanx

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Permalink Reply by Anant Rao on September 20, 2012 at 9:14am

Dan,

Yup i can still receive my cmu mails...sorry didn't check'em before replying to u...

CSGshops unit shd work rght out of the box...i tested it wth their software on my Win7 machine....here's a few check tht might help u...

a) Verify the module is powered (red leds glow)...its a dumb check bt small checks save big troubles later...:)

b) The module will ONLY with an external antenna connected....by this, i mean u can still connect to the software without the antenna, but its gonna give u the readings only when u connect the external antenna....this is because lea-6h doesn't have an embedded antenna...

c) The chipset might not give readings even with an antenna, if ur trying it inside the buildings...try it outdoors...

hope it helps...

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Permalink Reply by Dan Manczak on September 20, 2012 at 10:22am

Hi Anant,

Thanx very much for your help.

Unfortunately, i think i might have recieved a malfunctioning unit. I've get two blue lights on the unit, so power shud b ok. However, no red lights.

I'm using the driver that installs with "ublox_A4_U5_USB_drv3264win7_install_UI.exe" (u-blox firmware). It still says "USB Device not recognized...One of the USB drivers..blah blah blah... has malfunctioned and Windows does not recognize it..blah blah blah... " Did u have to install any USB driver?

The links for downloading driver and supersense on their website are broken  :(

And on top of that i'm dont seem to be getting any UART/bluetooth signal.

hmmm....

Cheers,

Dan

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Permalink Reply by Anant Rao on September 20, 2012 at 11:22am

Sorry abt the red lights...its been a few months n i don't remember the color...:)

yup...i did install the same usb drivers as u did...win7 machine shd detect the device  thn...did u try troubleshooting frm the device manager wizard (like update the drivers option or smthng like tht)...? smtimes using a different usb port works too...

though its possible tht the specific module might be faulty, i'd probably try n figure out if thr's a driver recognition issue on ur machine...

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Permalink Reply by Dan Manczak on September 20, 2012 at 11:47am

Its working on Vistas now dude!!! :)...

Changed the usb port.

Awesum...red diode is blinking! Sweet!!!... 

Did u ever manage to get the UART going?

Thanx again!!!

Permalink Reply by Anant Rao on September 20, 2012 at 1:04pm

Sorry, I haven't tried the uart...honestly, i was looking for an i2c breakout board for lea-6h...

unfortunately, no schematics file is posted on the csgshops website...i do believe though tht thr's a UART breakout on their board: pin no.s 3,4,5,6 on the PCB (beside the usb port) somehow correspond to the Tx1,Tx2,Rx1,Rx2 (not in the order) of the RS232 transceiver ADM3202A on the pcb...(2's NC, 1 n 7 i believe are power pin n gnd)...

thts abt all i found (or even tried to) on the board....if u get the pin connection correct, i believe diy drones has some examples to communicate to lea-6h via UART...

Permalink Reply by Dan Manczak on September 21, 2012 at 1:26am

Thanx again!

Cheers.

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