Just got the board and Servo not moving

Lynxmotion Electronics & Software
1

Using VSA. The Power to servo 5V 2amp the power to Vl 6V 300ma. the green light flickers when program is running but no movement from the servo.

Please advise.

Thanks

2

Hi Brandon,

We would probably need to know more information to help out. Things like what program are you running, What is hooked up to the SSC-32. How is the servo connected…

Since you say the the green light flickers, it usually implies that it is receiving some information, but it might not be at the right baud rate (check jumpers on SSC-32 and the baud you are sending). Also unless you are running in binary mode, all commands need to be terminated by a CR.

Kurt

3

Kurt,

Sorry so long to get back to you. I just hooked the SSC-32 to a new computer. The computer has a COM1 and a COM3 showing up on the device manager. COM1 shows a microsoft driver and COM3 shows a FTDI driver (I let the computer find a driver when the new hardware found alert came up). I set both COM’s to 115200 Baud. I am using the VSA demo download and have one servo plugged into board output 0 (zero). I run a small program on the VSA where output 0 (zero) is set to COM3 and baudrate 115200. The green light is off until I hit program than it blinks. This is a little different from the other computer where the Green light was always on and would blink more rapidly when the program was executed. Still nothing though. any thoughts?

Brandon

4

Unfortunately I don’t think anyone here has experience with the VSA software. Can you install LynxTerm and type some simple tests?

5

I just downloaded lynxterm (I am willing to try this) but The program looks complicated. I tried to view a tutorial and found it even more confusing. I guess I’m not smart enough for this program. Is there an easy tutorial link you can provide so an amateur like me can test out this board?

Thanks,

Brandon1

6

Connect the board to the PC, start the program, ensure the baud rate is the same on the card, (115.2kb) as in the com port setup box.

The LED on the SSC-32 is not a power light, it is a status indicator. It’s job is to turn on when power is applied to the microcontroller, then turn off when it has received data, then blink whenever it receives data. If it never goes out… wrong com port. Tell me what you get and I will go into more detail.

PS pick a place to work. Please don’t start a new thread for every question you come up with.

7

Sorry about the other thread - I don’t know forum etiquette yet. I don’t know how to use the Lynxterm program but I did set the port to 115200 and run the slider on the right up and down. The green light on the board flickered but the servo didn’t move. The 5vdc supply is plugged into the VS2 both jumpers for VS2=VS1 are there the VL=VS jumper is missing 6VDC into the VL. the Servo hs-85bb is plugged correctly into the 0 pin.

8

Type VER then enter. I want to see if the SSC-32 will respond with it’s firmware version. This will tell me if the SSC-32 is working properly. Tell me what happens…

9

Also tell me what the current rating is on the power supplies.

10

as at the beginning:

suspect wrong baudrate

11

Yeah, we’re going to need to see some pictures…

12

Ok,

I got it to work by switching out the USB to serial adapter that I bought from Lynxmotion with a serial to serial cable. I bought this because I wanted to use my laptop which doesn’t have a serial input. I am going to try and make the adapter work or I’ll have to return it. First I will try to remove the driver and re-install it. If You have any advice you can offer I would love to hear it. Thanks for all of your help.

brandon

13

We can test the cable for you. I can tell you this cable is the best there is, assuming it’s not defective…