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Re: Advice for Quadruped (QSR-X1)

PostPosted: Thu Dec 22, 2016 11:24 am
by Matt Denton
Yeah very nice. I'm glad your still keeping this project going. I've said I'm done on hexapod robots... but you never know :)

Re: Advice for Quadruped (QSR-X1)

PostPosted: Fri Dec 30, 2016 12:15 pm
by clh6685
pem wrote:Very impressive work, congrats

thanks pem!

Matt Denton wrote:Yeah very nice. I'm glad your still keeping this project going. I've said I'm done on hexapod robots... but you never know :)

haha. Your hexapod reached very advance level since 8yrs back. Me now only close to what you have done, is a bit slow.


Latest update to share, on-board IMU pitch roll balancing feature testing.
IMU test

Re: Advice for Quadruped (QSR-X1)

PostPosted: Wed Jan 04, 2017 10:45 am
by Matt Denton
Cool! Is the jiggle on the body noise form the IMU? Which IMU are you using. I would suggest something like the BNO055 from adafruit, the fusion engine is very good!

Re: Advice for Quadruped (QSR-X1)

PostPosted: Wed Jan 04, 2017 1:09 pm
by clh6685
Matt Denton wrote:Cool! Is the jiggle on the body noise form the IMU? Which IMU are you using. I would suggest something like the BNO055 from adafruit, the fusion engine is very good!


Yes, the noise is coming from IMU. I'm using ADXL335. Is analog output type instead of I2C. The reading is very unstable.
Without artificial signal conditioning is impossible to get a steady reading. But it is very very cheap compare to BNO055.
By the way, I just aware of this outstanding IMU, the feature is great.

Re: Advice for Quadruped (QSR-X1)

PostPosted: Thu Jan 05, 2017 8:50 am
by Matt Denton
There is a cheaper device but it requires a more sophisticated programming solution on the micro side, but lots of examples:

http://www.ebay.co.uk/itm/MPU-6050-GY-521-3-Axis-Gyroscope-Accelerometer-Module-for-Raspberry-Arduino-/161867937083

http://playground.arduino.cc/Main/MPU-6050

Re: Advice for Quadruped (QSR-X1)

PostPosted: Thu Feb 16, 2017 12:56 pm
by clh6685
Matt Denton wrote:There is a cheaper device but it requires a more sophisticated programming solution on the micro side, but lots of examples:



thanks for the link.

Sneek peek of the second generation. upgraded femur servo to increase torque, simplified body structure, better component arrangement. 8-)

Image

Re: Advice for Quadruped (QSR-X1)

PostPosted: Fri Apr 07, 2017 1:52 pm
by clh6685
Finally! All up and testing. 8-)

Image

Re: Advice for Quadruped (QSR-X1)

PostPosted: Sun Apr 16, 2017 11:58 pm
by clh6685
have some fun with wifi cam on board and steering around my friend apartment! :D

1st person view camera on board

Re: Advice for Quadruped (QSR-X1)

PostPosted: Tue Aug 29, 2017 12:52 pm
by clh6685
This is how engineer write love letter to lover! :P

1st writing attempt