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ManualsBrandsPololu ManualsStepper Motor ControllersT834 USB Multi-Interface 2.5-10.8V, 1.5A Stepper Motor Controller (Soldered)
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no entries, then the tips here can help you troubleshoot the Tic’s USB connection on a Windows
computer.
If you have connected any electronic devices to your Tic besides the USB cable, you should
disconnect them.
You should look at the LEDs of the Tic. If the LEDs are off, then the Tic is probably not receiving power
from the USB port. If the green LED is flashing very briefly once per second, then the Tic is receiving
power from USB, but it is not receiving any data. These issues can be caused by using a broken USB
port, using a broken USB cable, or by using a USB charging cable that does not have data wires.
Using a different USB port and a different USB cable, both of which are known to work with other
devices, is a good thing to try. Also, if you are connecting the Tic to your computer via a USB hub, try
connecting it directly.
If the Tic’s green LED is on all the time or flashing slowly, but you can’t connect to it in the Tic software,
then there might be something wrong with Windows. A good thing to try is to unplug the Tic from USB,
reboot your computer, and then plug it in again.
If that does not help, you should go to your computer’s Device Manager and locate all the entries for
the Tic. If the Tic’s main USB driver is working, you should see an entry in the “Universal Serial Bus
devices” category called “Pololu Tic T825”. If it has a yellow triangle displayed over its icon, you should
double click on the entry to get information about the error that is happening. If you do not see that
entry, then you should open the “View” menu and select “Devices by connection”. Then expand he
entries until you find your computer’s USB controllers, hubs and devices. See if there are any entries
in the USB area that disappear when you unplug the Tic. This might give you important information
about what is going wrong.
Do not attempt to fix driver issues in your Device Manager using the “Add legacy hardware” option.
This is only for older devices that do not support Plug-and-Play, so it will not help. If you already tried
this option, we recommend unplugging the Tic from USB and then removing any entries you see for
the Tic by right-clicking on them and selecting “Uninstall”. Do not check the checkbox that says “Delete
the driver software for this device”.
Tic Stepper Motor Controller User’s Guide © 2001–2018 Pololu Corporation
3. Getting started Page 11 of 150