- Wed Apr 19, 2006 5:31 pm
#12485
Now, I KNOW this is bouncing around their heads already.
Combine an Analog ADXL330, the new Ivensense gyro and (unless Invensense has another gyro, love that noise rating) a 300 deg/s Analog gyro. Add a pad option would be a "high G" pad ( or enough for 1-3 axes, but only Freescale makes a high G Z) for those who like their IMU's in rockets . Now, there will need to be 5V interfacing for the Analog gyro, but they've done it before with the Freescale accelerometer.
For those who haven't grasped this idea yet, this would be a single board IMU without ANY riser boards. None at all. Going with one riser board would allow another Invesense gyro to be used for 3 axis 500 deg/s and low noise, but it loses the core elegence. While I know Sparkfun will toss on Bluetooth, my personal wants mean that I'm going to be building my own, basing it around a CAN equipped PIC or dsPIC.
I do figure this will be around $200 (dunno if that price includes Bluetooth). If this is too fast, it should be simple for Sparkfun to swap in a IDG-1000 with a lower max rate.
Now, back to designing the low cost accelerometer-only IMU (may not be exactly accurate, though!)
Combine an Analog ADXL330, the new Ivensense gyro and (unless Invensense has another gyro, love that noise rating) a 300 deg/s Analog gyro. Add a pad option would be a "high G" pad ( or enough for 1-3 axes, but only Freescale makes a high G Z) for those who like their IMU's in rockets . Now, there will need to be 5V interfacing for the Analog gyro, but they've done it before with the Freescale accelerometer.
For those who haven't grasped this idea yet, this would be a single board IMU without ANY riser boards. None at all. Going with one riser board would allow another Invesense gyro to be used for 3 axis 500 deg/s and low noise, but it loses the core elegence. While I know Sparkfun will toss on Bluetooth, my personal wants mean that I'm going to be building my own, basing it around a CAN equipped PIC or dsPIC.
I do figure this will be around $200 (dunno if that price includes Bluetooth). If this is too fast, it should be simple for Sparkfun to swap in a IDG-1000 with a lower max rate.
Now, back to designing the low cost accelerometer-only IMU (may not be exactly accurate, though!)
Technical Alchemy
Strange ideas, rambling technical thoughts
http://technicalchemy.blogspot.com/
(yes, I'm working on a real website eventually)
Strange ideas, rambling technical thoughts
http://technicalchemy.blogspot.com/
(yes, I'm working on a real website eventually)