I can't get my LS20031 To work

GPS/GNSS Development Boards
1

I can’t get my LS20031 to work, it just has the light on all the time and doesn’t send or receive or send any data, help please

2

we also haven’t configured it, if we need to please tell us

3

We need more info to help u out.

Are you powering it with 3.3v? What’s the baud rate of your conection? HW interface?

4

You should be able to get some data off it without configuration. The correct behavior of the red LED on board is that it should be off at start-up and start blinking at 1 Hz when it has got a fix. I think constant on means error.

Verify that you feed it 3.3V, at least you should hear something on the TX-pin, even if you’re using the wrong baud rate.

5

sorry about the low info but i am running at a 3.3v supply and a baud rate of 9600, as you mentioned, the led should never be on anyway, thats whats annoying me, but thanks for the help

6

I think these modules come configured at a higher speed from the factory/supplier, 57600bps is what i have read in the forums. Mine is on the way so in a couple of days I should be able to tell you about my experience.

7

57600 is what mine was set at. Also, if you change it, be aware that the setting will remain even when losing power. At least for a period of time (about one week I’ve heard). I run it at 115200 so my solution was to always send reconfigure message in 57600 at start-up. If it was in fact set at 115200, it will just ignore the message anyway.

8

The LS20031 GPS Module supports up to 32 Channels and outputs at 5Hz. Also, it includes an antenna which is embedded and GPS receiver circuits. It is a low-cost unit which outputs a surprising amount of position information 5 times a second. The GPS smart antenna will track up to 32 satellites at a time while providing fast time-to-first-fix, one-second navigation update and low power consumption. The capabilities meet the sensitivity requirements of car navigation as a well as other location-based applications.

9

Classic questions:

-are you testing indoor or outdoor?

-How do you connect it, on a RS232 port, on a USB to RS232 cable or a USB to TTL serial ?

-Are TX and RX of the module connected to Rx and Tx of interface?

-Have you checked all baud rates?

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Angelo