I just installed the ping mounting bracket, and servo on my my activity Bot. Do I need to run the calibration routine again? Will it calibrate the ping sensor motor?
I just installed the ping mounting bracket, and servo on my my activity Bot. Do I need to run the calibration routine again? Will it calibrate the ping sensor motor?
Andy or another from Parallax will know for sure, but I don't think the abdrive library deals with the sensor turret. I'm guessing you could come up with a way to use an obstacle of a specific size to calibrate the position of the servo horn when at 1500 us, you can also easily do this manually if you see the turret is no longer pointing straight ahead. Just send the turret 1500 us pulses, and if the horn is not lined up, loosen the screw and reposition. Sound bounces everywhere, so a a degree or two off center isn't going to make much difference.
I'm quite sure it won't be calibrated by the calibration routine as that is intended for the wheel servos. Also, there are no encoders on a standard servo I assume you are using with the bracket.
I myself assembled the ping mounting bracket a few days ago and have it up and running.
The calibration program only stores encoder data for the wheel servos. It will not calibrate the servo attached to your PING))).
To calibrate your PING))) bracket servo you can follow the advice given by Gordon and Publison to run a simple manual centering program.
OK, i think I have it set pretty good. I made a small modification to a roaming program a board member sent me to help the bot get out of a repeatable situation where it would just measure turn, and measure turn, like being in a corner. It seems to work pretty well. I'll post a movie in a bit.
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The PING servo isn't that critical.
You may want to run that centering routine on the Ping Servo to get it close to center.
Andy or another from Parallax will know for sure, but I don't think the abdrive library deals with the sensor turret. I'm guessing you could come up with a way to use an obstacle of a specific size to calibrate the position of the servo horn when at 1500 us, you can also easily do this manually if you see the turret is no longer pointing straight ahead. Just send the turret 1500 us pulses, and if the horn is not lined up, loosen the screw and reposition. Sound bounces everywhere, so a a degree or two off center isn't going to make much difference.
I myself assembled the ping mounting bracket a few days ago and have it up and running.
To calibrate your PING))) bracket servo you can follow the advice given by Gordon and Publison to run a simple manual centering program.
OK, i think I have it set pretty good. I made a small modification to a roaming program a board member sent me to help the bot get out of a repeatable situation where it would just measure turn, and measure turn, like being in a corner. It seems to work pretty well. I'll post a movie in a bit.
Be sure to check out the several ultrasonic projects on the Learn site for some additional fun: http://learn.parallax.com/activitybot/navigate-ultrasound
Very good. I never get tired of robot videos.
I'm getting some popcorn ready.