Hello,
Im looking through your forums as we speak to see if i can find solution. I purchased the Micro Serial Servo Controller and I thought I had it working correctly, sending bytes off the AVR did cause the Servos to move correctly.
Now we are nearing the dead line of our project and I am starting to run into trouble.
I am currently using the STK500 AVR Eval Board and when I tried to send 3 bytes to the Controller it would not respond, at most the servos would flutter to a non-specific location then the green led would remain solid while the red led would flash.
So I looked at the web site and downloaded the Serial Transmitter Utility. When I send 3 bytes to the controller via the COM I.e:
0xFF,0x08 (180 mode),0xFE then 0xFF, 0x08, 0x00
the servo would move around 1/4th to the position then move again till the position was reached. Then it gets worse every time I send the same exact bytes it will flutter to another location… as though it was lost in the process.
I plan to implement servo motors on to robotic arms where I will run two servos one on the Elbow and one on the Shoulder of one arm.
I state this because I also get the problem of the servo reaching the desired location and not Holding that position. The arm raises then falls flat. The arms are made of light wooden dowels.
I currently have the jumper bridging the the power to the servo and the micro-controller on the controller
Thanks for your help and I will be on this post till I find some similar forum.
Is there some kind of start up sequence of bytes I should send first? Via Mini SSC-II mode.
Also I would like have a link explaining in great detail the Pololu mode. The Data Sheet it comes with is not that clear. I understand sending 5~6 bytes and the cmd to do so but It does not explain much about the Data1 Data2 Byte with each cmd, or I’m confusing my self.
Thanks,
Al
Everything Is running at 5V
Ugh Sorry wanted to make it more clear:
Setup:
5V Micro Servo,
When Testing it off the AVR I use the Logic level in Pin
When Testing it off the COM I use Pin 3 Logic out Serial Data to RS-232 pint
Mental Notes:
Just found One nice thread… for any one reading this… will check this out tomorrow