ArduIMU V3 is finally here!
Long time since my last post!
I'm glad to announce the new ArduIMU V3 that will take the place of the very successful ArduIMU v2 (flat version). We called it flat version because ArduIMU V2 was created in a time where 3 axis and even 2 axis gyros were not so common and we had to place some of the gyros vertically. Good times...
ArduIMU v2 was the first low cost IMU that had gyros that allowed me to keep it flat, but they were bulky and expensive. I had to use two gyro chips for the XYZ axis, another for the three axis acceleration and you had to place the magnetometer externally. Another "disadvantage" was that all the sensors (but the mag) were analog, by default limited to 10-bits and required all the analog inputs in order to read them and you were also limited by the default filtering configuration and other noisy issues.
All the limitation we had with ArduIMU V2 are all gone with the V3. ArduIMU V3 features the new MPU-6000, that includes 3 axis gyros & accells built-in and process everything internally that is some kind of dual core power (24-bits ADC sampling and sensor fusion is handled inside the MPU), the latest 3 axis I2C magnetometer HMC-5883L and the classic but very robust Arduino Atmega328 running at 16Mhz...
MPU-6000 uses SPI for max performance. Did I say user configurable low pass filtering and scale range? Hell yeah... and here are some of the other specs:
- Digital-output of 6 or 9-axis MotionFusion data in rotation matrix, quaternion, Euler Angle, or raw data format
- Tri-Axis angular rate sensor (gyro) with a sensitivity up to 131 LSBs/dps and a full-scale range of ±250, ±500, ±1000, and ±2000dps
- Tri-Axis accelerometer with a programmable full scale range of ±2g, ±4g, ±8g and ±16g
- Reduced settling effects and sensor drift by elimination of board-level cross-axis alignment errors between accelerometers and gyroscopes
- Digital Motion Processing™ (DMP™) engine offloads complex MotionFusion, sensor timing synchronization and gesture detection
- MotionApps™ Platform support for Android, Linux, and Windows, with Windows Phone platforms on the roadmap
- Digital-output temperature sensor
- Digital input on FSYNC pin to support video Electronic Image Stabilization and GPS
- Programmable interrupt supports gesture recognition, panning, zooming, scrolling, free fall interrupt, high-G interrupt, zero-motion detection, tap detection, and shake detection
- Full Chip Idle Mode Supply Current: 5µA
- On-chip timing generator with ±1% frequency variation over full temperature range
- User self test
- 10,000g shock tolerant
Other ArduIMU V3 features:
- Pin compatible with ArduIMU V2.
- Breadboard compatible (ArduIMU V2 was not!).
- Cheaper price (around $60 $78dlls, not confirmed)..
- Smaller size (1.5" x 1.0").
- Atmega CPU has more % available for other tasks.
- The 6 analog pins are now available!
- Arduino compatible and open source.
- 3 status LED's (RGB).
- I2c port with 3.3V translation.
- GPS port with FTDI autoswitch.
- This device is suitable for ANY application from rockets to simple movement detection.
The release date is estimated to be in two-three weeks. We are waiting for the final big batch and finish some code. We will take pre-orders soon.
We also cooking BIG new goodies that will be announced also this month... =)
[UPDATE 11/15/2011]: You can buy it now check this post: http://diydrones.com/profiles/blogs/arduimu-v3-ready-for-pre-order-...
-
Comment by ThomasB on November 3, 2011 at 1:32am -
The "ZRO Variation Over Temperature" with +-20º/sec should be no big problem,
there is a temperature sensor on it, sampling automatically the temp in some registers parallel to acc and gyro data, so you can correct this 'drift' per software :)
-
Comment by ThomasB on November 3, 2011 at 1:56am
-
@ I do not know how well works the attitude algorithm embedded
As I read in the Invensense developer forum the "motion fusion" software doesn't support the HMC5883L.
-
Comment by Andrew Radford on November 3, 2011 at 2:09am -
Would this support a port of one of the 'light weight' flight controls like multiwii? if so would be a good candidate for creating micro quads
-
Comment by I.S. on November 3, 2011 at 2:14am -
@Jordi: "24-bits ADC sampling and sensor fusion is handled inside the MPU"
As far as I know (product specs) it's 16bit for gyro and accels,
maybe you are talking about an ADC below the 6000 MPU IC? (wish yes)
edit:Self answered: nop, that seems to be the level converter
-
Comment by ThomasB on November 3, 2011 at 2:21am
-
Oh, I have to make a correction about MotionFusion HMC5883L support.
Just found this an Invensense site:
"We do support HMC5883L in our MotionApps software (for handsets and tablets) that runs on Application processor. We don’t have a target date for supporting HMC5883L in the Embedded MotionApps software release."
So it seems they will support it (some day :)
-
Comment by Héctor García de Marina on November 3, 2011 at 2:36am -
@ThomasB
I agree with you, it should not be a problem :P. I only highlighting that the chip is "factory calibrated" over temperature xD, and the datasheet claims that is not needed any extra calibration.
But the linear acceleration could be a problem for aerobatics for instance. The chip is new and there is not enough performance curves o gyros by now :P. But for 49$ / unit (6DoF + attitude algorithms), I will try it out.
-
Comment by Jonas on November 3, 2011 at 4:49am -
Hi Jordi will this one work with the Paparazzi also?
-
Comment by Juan Enrique Martin Boix on November 3, 2011 at 5:39am -
Hello ,
I wonder if the i2c port of the mpu6000 will be available for external magnetometer . I have run into an installation that needs the compass far from the rest of the IMU (power leads) to avoid magnetic distortion.
Nice green board!!!!
-
Comment by Alex Roup on November 3, 2011 at 6:34am -
I couldn't tell from the posted information whether the V3 board is using the internal attitude estimation of the MPU6000 or is reading the raw output and doing the attitude estimation on the Atmega328p. Can you clarify? Thanks
-
Comment by Aaron on November 3, 2011 at 7:17am
-
I just want a frame kit, sheesh.. :)
Social Networking
Top Content
Contests
Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.A list of all T3 contests is here.
Groups
-
ArduPlane User Group
692 members
-
Japan ArduCopter Group
51 members
-
ArduRover User Group
186 members
-
ArduCopter User Group
1298 members
-
Moderators
24 members
Advertisement
© 2013 Created by Chris Anderson.
Powered by
You need to be a member of DIY Drones to add comments!
Join DIY Drones