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WiTilt v3.0

Replacement:SEN-10276. The new version uses the MMA7361 instead of the MMA7260Q. This page is for reference only.

This is the latest wireless accelerometer from SparkFun. The WiTilt v3 incorporates many new features including LiPo battery, built-in charger, enclosure, single axis gyroscope and many more!

We've combined the triple axis accelerometer sensor from Freescale MMA7260Q with the Bluetooth module from Roving Networks. What do you get? The new, WiTilt v3 complete* wireless *Accelerometer Measurement System. All measurements are transmitted via a wireless Class 1 Bluetooth**® **link that is extremely easy to use with a range of 100m (330ft) line-of-sight and 30m (100ft) in doors.

Output in ASCII/Binary/HEX at 57600bps. Bluetooth**® **connection can be reconfigured for slower communication rates. Individual measurement channels can be turned on or off. The unit can be setup to report only when a minimum value is broken (threshold). WiTilt v3 has a built in battery and roughly 12 hours of run time on a full charge.

You will want to remember to order the extra connector, and wall adapter to charge your battery. These units have a charger built in, so all you need is Wall Adapter Power Supply - 5VDC 1A, and a Barrel Jack to 2-pin JST adapter.

Having a hard time picking an IMU? Our Accelerometer, Gyro, and IMU Buying Guide might help!

**® **connection * Raw value output * Tilt output in degrees * Triple axis accelerometer (MMA7260) * Single axis gyro (MLX90609-150) * Fully enclosed * 860mAh LiPo Battery * Built in fast charger (full charge in less than 45 minutes) * Battery level indicator * Wired connection possible

Dimensions:

  • 2.20 x 2.81 x 0.73"
  • 57g
  • Compact size
  • Wireless readings over Bluetooth

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.

  • alik / about 13 years ago / 1

    Warning to those who will try to program WiTilt with custom firmware and AVRISP mkII programmer. Sparkfun put 5V Vcc on the programming header (pin2)which makes AVRISP think that the Atmega328p on the board runs at 5V while in fact it runs at 3.3V. That causes AVRISP to use wrong logic levels. AVR Studio gives the message "there seems to be short circuit on the isp connector" and Avrdude gives unspecified error with one programmer I tried and works intermittently with another. You can use about 300 Ohm resistors in series with MISO, MOSI and RST lines (I read that this helped someone with similar problems but have not tried myself) or put 3.3V on pin 2 of the connector which worked for me.

  • alik / about 13 years ago / 1

    So, what hardware is it: Atmega8@10MHz as the datasheet and schematics say or Atmega168@8MHz as the firmware source code says? Does it run at 56k (this webpage) or 115k (datasheet, schematics, source code)? Can you put on this page the firmware and schematics that both are consistent with the hardware you sell so that I know what I am paying $200 for?<br />

  • alik / about 13 years ago / 1

    So, what hardware is it: Atmega8@10MHz as the datasheet and schematics say or Atmega168@8MHz as the firmware source code says? Does it run at 56k (this webpage) or 115k (datasheet, schematics, source code)? Can you put on this page the firmware and schematics that both are consistent with the hardware you sell so that I know what I am paying $200 for?<br />

  • Lei / about 14 years ago / 1

    In the datasheet:
    From your base Bluetooth? device, connect to
    the WiTilt v3 in serial mode and open a terminal program to which
    ever port your Bluetooth? is set to.
    Which terminal program? Telnet? How to set port for it?
    Thanks!

  • Gusmao / about 14 years ago / 1

    Does anybody have experience in reading Witilt v3.0 data
    from a Labview program? What should I answer when Labview asks for Witilt`s address (in XXX.XXX.XXX.XXX format)?

    • zagGrad / about 14 years ago / 1

      Hi,
      Do you have a bluetooth serial dongle available? You need to find the bluetooth address of your WiTilt. You can probably do this through Labview, but it's easier to just open a COM port on your PC and use your bluetooth module to search for devices. If you search for devices from your computer with the WiTilt turned on, then it will show up in the device list, and the address will be presented. You can then copy that address and put it in your Labview VI.

      • Gusmao / about 14 years ago / 1

        Hi, ryowens (?), many thanks for your answer.
        I have found what I think is the bluetooth address
        of my WiTilt ( 00.06.66.01.e7.96 ), but Labview still
        does not recognize it, even if I rewrite the address
        according Labview`s format ( 000.666.01e.796 ).
        By the way, capital "e" was also tried.
        Any hint?

        • zagGrad / about 14 years ago / 1

          What is your method of connecting to the device in LabView? When I did it I was using a serial enabled bluetooth module and I used the VISA serial VIs. This took some patience, but eventually worked. If you have an 'internal' bluetooth device on your PC though I don't know how to go about it.

  • Tycho Vhargon / about 14 years ago / 1

    What does this have that the Wii remote doesn't?
    This isn't a rhetorical question, I really want to know what the benefits of this product are.

    • zagGrad / about 14 years ago / 1

      Hi,
      It doesn't have anything that the Wii Remote doesn't have (I think I said that right). Anyways, it does have a serial interface for configuring the Gyro and the Accelerometer over bluetooth without any hacking required. I don't know how you actually interface to a Wii remote over bluetooth; maybe it's the same way.
      You can also access the programming header of the Witilt to re-program the board for more custom applications. You could probably find a way to do this with a Wii controller, but it's almost definately easier with the WiTilt.
      (By the way, WiTilt isn't a rip-off of the Wii remote name in any way. It's a shortened version of 'Wireless Tilt' sensor, in case there was any confusion).

  • DMITRY / about 15 years ago / 1

    What about temperature compensation of sensors? How I can make temperature compensation for use it outdoor?

  • Alien / about 15 years ago / 1

    WiTilt V3 demo project is available through:
    1. http://forum.sparkfun.com/viewtopic.php?t=15852
    2. http://code.google.com/p/witiltdemo
    Both refer to the same code at this time.

  • Alien / about 15 years ago / 1

    can i use TOL-08639 + TOL-08734 (from USB via Barrel Jack to 2-pin JST) to charge the battery or it would be better/faster to use 5V wall charger with the same cable (TOL-08269 + TOL-08734)?

  • zagGrad / about 15 years ago / 1

    Check out this product:
    TOL-08734
    Is that what you're looking for?

  • jdesbonnet / about 15 years ago / 1

    What part do I need to order to connect to the 5V battery charging header?

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