LSS issue - cannot connect

[scharette]

Hi @D_Hertz,

Welcome to the RobotShop community!

Lets break down your post and figure out what we can do to fix this issue!

@D_Hertz

Hi, I have the exact same issue as described in this thread. The servo is brand new and has never successfully connected to the config software.

That part does seem similar to the topic you originally posted too (aside for the fact they were using a 4DoF robotic arm kit).

@D_Hertz

I have done the factory reset three times.

Using the button, I assume?

@D_Hertz

Each time I know it worked because the LED colour changed back to the default, none.

Did you also changed the LED colour using the button, too?

@D_Hertz

I tried the firmware update you mention in this thread and I always get the message “Unable to connect to motor …”.

Did you try the steps at the end of this post.
Here is a copy for reference:

@scharette

Which version of the LSS Config are you currently running (visible int he splash screen on startup and top-left corner of the title bar)? It should be 19.7.9 at this time.

As for your servo, please try the following:

1. Connect the LSS Adapter Board by USB to your computer, ensuring you obtain a proper COM port (leave the servo not powered).
2. Start the LSS Config (preferably version 19.7.9). Once started select the LSS Adapter Board COM port and click connect. After three full scans of the baud rate you will get this pop-up:
   
   
   
   Press Cancel to stay connected.
3. Pres and hold the button on the problematic LSS and power it up. Once the LED bar is solid yellow, release the button. The LED bar should now blink yellow.
4. Press the FIRMWARE button. In the Firmware selection window leave all settings to default and press OK .
   (this step assumes Internet access on this computer)
5. The update process should start. This will be visible in the console at the bottom and on the LED bar of the LSS (magenta & blue colors per data page).
6. If the process completes properly the LSS should reset and have the LED bar off/black by default and the LSS Config should connect to it at a baud rate of 115200.

Please try this out and let us know if you have any issues at any of the steps with as many details as possible.

@D_Hertz

The only other piece of evidence I can give is when I write to the server using the python test code,

Can you attach a file here with your Python test code?

@D_Hertz

the USB-Tx LED blinks. Not the Rex light but the Tx. When I read from it, no LED lights blink.

What kind of USB<>TTL UART interface/device are you using? What about the power source for the LSS?

Please provide pictures of your setup making sure to clearly show all the major components (LSS, power source, interface, cabling, etc.). Feel free to annotate your picture for clarity if needed.

I’ll be waiting for your reply to help you further.

Sincerely,