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12 Channel Lassen IQ GPS Receiver with DGPS

Replacement: None. This GPS module is an EOL part. This page is for reference only.

The Lassen iQ is the latest GPS receiver from the world renowned Trimble. This is one of the smallest, easiest to use, and lowest power receivers we've ever seen!

Not sure which GPS module is right for you? Check out our GPS buying guide!

  • 12-Channel Receiver
  • DGPS Ready
  • Hot Start : 10s
  • Warm Start : 38s
  • Cold Start : 50s
  • New Enhanced sensitivity mode
  • 26mA at 3.3V
  • Antenna detection
  • Serial output stream - configurable to NMEA Standard at 2400bps to 19200bps
  • Small. Really small.

Software:

**Which Module to Buy? : **GPS Module Tutorial (Opens new window)

Comments

Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Member #672582 / about 9 years ago / 1

    Hi, Could someone sell me (new or used) a Trimble Lassen iQ module? If so, please contact me: dweb at slabs.com.ar

    Thanks in advance!

  • Willian Sánchez / about 9 years ago / 1

    usart or uart?????

  • Member #207687 / about 13 years ago / 1

    I just used this receiver in a high altitude balloon project and it performed fantastically. With battery backup it gets a fix inside in just a few minutes, outside almost instantly. It tracked its position within 5-10 feet up to an altitude of 90,000 feet when the balloon popped. The only piece of electronics I never had a problem with during the whole development process. Sorry to see its retirement coming soon, it's such a good unit!

  • eclipsh / about 13 years ago / 1

    Just a heads-up, this doesn't come with any cables or connectors. Be sure to get one along with an antenna.

  • Member #207687 / about 13 years ago / 1

    Just received the Lassen in snazzy SparkFun red. I wired it up for NMEA serial output and hooked it to a USB level converter so I could see the output on my computer. RealTerm showed that it alternates putting out GPGGA and GPVTA sequences. Also note that the connection between the GPS and the antenna is very secure, it may take some gentle tugging to disconnect the antenna from the casing. Otherwise a great unit! Small, light, and starting transmitting data as soon as I hooked it up.

    • Toni_K / about 13 years ago / 1

      The antenna hook up is very small and does require a bit of effort to disconnect them. These antenna aren't really designed to be removed often due to this-it can lead to tearing on the antenna, so just be aware of this.

  • schnautzk / about 13 years ago / 1

    I'm looking for a module that can tell me altitude at any time. What I'd like to do is send it a command via an arduino and have it reply with the current Altitude. (over serial) Is this possible?
    If so, what else does this require ... antenna, eval board?

    • Toni_K / about 13 years ago / 1

      Most GPS modules output the altitude as part of the default data out-this one included. You would want the antenna linked below in related products. How you want and feel comfortable wiring this up to an Arduino is up to you.

  • Member #113353 / about 13 years ago / 1

    This device is not configured to output the GPRMC string. You have to connect to it using their software to turn that sentence on.<br />
    <br />
    However, it does that through the "A" serial interface and not the "B" NMEA port. My gps shield from adafruit won't connect to it.<br />
    <br />
    Wish there was a simple way to get it reprogrammed without having to buy the $40 breakout board for just one operation.

  • Abel Brown / about 15 years ago / 1

    Is there a breakout board for this anywhere? That would be pretty handy since that that connector is so small.

    • jatkins / about 15 years ago / 1

      Scroll down to "ProtoType Adaptors": http://www.embedtronics.com/GPS/lassenSQ.html. It says Lassen SQ but will work with a Lassen IQ. You have to email to order one. I bought one and it works fine - you can buy it with or without the SMD header soldered on the board. The site is Australian so the prices are in Australian dollars, iirc.

  • richardgrodzik / about 17 years ago / 1

    Hi there !
    I recently constructed a GPS clock using the Lassen IQ, 3310 Nokia LCD and PIC18F252.
    Diplays ZDA data - date and time inside the house!
    Trick is to capture a few satellites with sight of sky with battery back up, and them permanently attach a mains dc adaptor.A 1Farrad capacitor for RAM will keep module in NMEA ASCII mode.
    But be warned.loss of power for a few minutes will entail loss of ZDA info and takes 20 minutes to re-start with sky line of sight.Maybe much shorter if you do not have 2 mobile phone masts outside your front door1
    Cheers,
    Richard

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