ArduPilot with ARM? IMU in one chip: MPU-9150

It was an issues of time to build a 9-axis sensor in one chip, and Invense did it again.

9150-diagram.png

http://invensense.com/mems/gyro/mpu9150.html

 

I read somewhere that people are working to build an Ardupilot with ARM CPU, so i'm thinking in image or video processing in a platform similar to Raspberry-PI, but this consumes 2.5W in Model A.

http://www.raspberrypi.org/

3689445616?profile=original

Specifications

Model AModel B
Target price:USD $25USD $35
SoC:Broadcom BCM2835 (CPU, GPU, DSP, and SDRAM)
CPU:700 MHz ARM1176JZF-S core (ARM11 family)
GPU:Broadcom VideoCore IV, OpenGL ES 2.0, 1080p30 h.264/MPEG-4 AVC
Memory (SDRAM):128 MiB (shared with GPU)256 MiB (shared with GPU)
USB 2.0 ports:12 (via integrated USB hub)
Video outputs:Composite RCAHDMI
Audio outputs:3.5 mm jack, HDMI
Onboard storage:SD / MMC / SDIO card slot
Onboard network:None10/100 Ethernet (RJ45)
Low-level peripherals:8 × GPIOUARTI²C bus, SPI bus with two chip selects, +3.3 V, +5 V, Ground
Power ratings:500 mA (2.5 W)700 mA (3.5 W)
Power source:volt via MicroUSB or optional GPIO header
Size:85.60 × 53.98 mm (3.370 × 2.125 in)
Supported operating systems:Debian GNU/LinuxFedoraArch Linux
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Comments

  • Interesting, I have a new BeagleBone ($89) sitting on my desk and just waiting to try integrating the APM oilpan to it. 700Mhz is nice, but since you need a heavier OS... not so nice. Waiting for the Arduino Due....

    The Pi is really nice for the price, but you're likely stuck with I2C--not many GPIOs or SPIs. And I2C may not be the best direction (i.e. the old Mikrokopter 'bus crashes' anyone?)

  • @Anish

    interisting, what king of problem they are having?

    @Sebastian Gralla

    it's seem to be insignificant but each Watt should be save. 

    @Hugo Vincent

    my mistake, fixed, thank you.

    @Doug Weibel

    You are right, from prototype or design to massive fabrication take its time.

  • Developer

    Bases on the amount of time between when Invensense announced the 6000 series chips and when they were actually available, I wouldn't hold my breath...

  • Where does it say it has an ARM in the invensense chip? I can see it has a "DMP" which sounds like a microcontroller of some kind running the fusion algorithm, but afaict you'd still need a second microcontroller to run the autopilot code. 

  • well, 2.5W on a quad is a very small consuption (you take about 150W to hover)

  • Getting hold of raspberrypi is a challenge, even very well connected folks from Cambridge (UK) community couldnt get hold of one..afaik

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