Propeller chip using the H48C Tri-Axis Accelerometer to balance a Segway type d

Comments

• donnpangy Posts: 49

  2009-08-13 06:05 edited 2009-08-13 06:05

  I am finding that the acceleromter is entirely to sensitive to small servo pops, and all I can get out of my servos is a back and forth occilation. Any ideas on a way to change the sensitivity·coming out of this accelerometer, would be apreciated ( hardware or software).
• Mike Green Posts: 23,101

  2009-08-13 14:08 edited 2009-08-13 14:08

  Something like this? en.wikipedia.org/wiki/PID_controller
• donnpangy Posts: 49

  2009-08-15 00:08 edited 2009-08-15 00:08

  Thanks for the tip Mike.
  ·· I realize that the oscillation from the overshooting is going to be a fun task to compensate for. I am finding that the servos that I am using are not as sensitive as I had hoped. I may need to find another gearbox and wheel assembly (x2) and a driver for it.
  ·· Any ideas where to find one?
  Thanks so much,·
• Timmoore Posts: 1,031

  2009-08-15 01:01 edited 2009-08-15 01:01

  How big and heavy? I have used the mini-metal motors from pololu.com a lot for small bots, pololu also have drivers as well though I have used the L293D chip with those motors.
• donnpangy Posts: 49

  2009-08-15 07:53 edited 2009-08-15 07:53

  The H48C Tri-Axis Accelerometer seems to have a static tilt component and a dynamic acceleration component. Is there a way to separate the 2 or is there a way to use the dynamic acceleration to my advantage?