Can't calibrate Phoenix hexapod

[jimlake]

Hi!

I require your help regarding a problem I’m encountering.

Phoenix Hexapod
SSC-32U

calibration

The robot is up and running with a Botboardino and the recommended software. However, I can’t seem to calibrate the servos to remove minor position errors. I have tried the Flowbotics software on your web site, but I can’t figure out how to load the config values into the SSC-32U. I have also tried the lynx term software. With it, I can get the robot to move the servos and it seems to “write” the SSC-32U registers, but when I reboot it with the Botboardino, the servos are not calibrated. I’m using a 9v battery for logic power. I am providing power to the robot servos with 5v from a 2A wall wart. I realize that this is not ideal, but it seems to able to supply enough current to move the robot when its under the control of the Botboardino (sloppy movement). I have ordered some NiMH batteries from you but have not received them.
I need some guidance from you folks on how to get this thing calibrated. The SSC-32U manual is not much help in this regard.

Additional information:

Thank you so much in advance for your help!

[scharette]

Hey,

Concerning calibration, the best bet is to set the offsets in the registers of the SSC-32U directly. This can be achieved easily using Lynxterm.

Connect your computer to the SSC-32U either directly (removing the TX/RX from the BotBoarduino to it) or through the BotBoarduino (as a passthrough) and set the offsets.
See the following existing topics for explanations/examples/screenshots:

sCC32u won't hold calibration

Hi, First, if you are changing each channel manually one by one, we strongly suggest that you instead use our free diagnostic tool, Lynxterm, to do this step. It will prevent errors in entering the values in binary format properly. Second, you should probably connect all the servos at once and use Lynxterm’s All=1500 button. From there, you can go in the Reg button and change the settings. Also, note that you will have to activate the Initial pulse offset feature, too, in the top right corner. …

Can't calibrate my Hexapod - SSC32 not detected

Hey! Here are answers to your questions & comments: Great to know. Good job! No worries about that. Since you got the hard part done (everything working), calibration should be trivial once you know the missing pieces of information! Here are some of those missing details: When the SSC-32 is connected to the BotBoarduino (as you have it in your image), the DE-9 is indeed deactivated. You can read more about it in the SSC-32 manual (#14). To activate the DE-9 port on the SSC-32, …

Help with Hexapod Lynxmotion Botboarduino and SSC-32u

Here’s a quick run down for it: The full example Phoenix code for 3 DoF / 4 DoF is available on the Lynxmotion GitHub. You can find it here. Here is a direct download for the 3 DoF version. You will also need the PS2X library from Bill Porter (the Lynxmotion version). It is available here. Here is a direct download to import in the Arduino IDE. Get the latest Arduino IDE version here (1.8.2 at the time of this post). Make sure to remove any previous PS2X library version from your libraries fo…

Sincerely,