Category: Uncategorized

You can use CombinationFilter.py to experiment with the two filters.

The Joystick Bridge has been updated. More instructions have been added to the instructions page for PS3 and PS4 controllers.

Here is a prototype of a magnetic FPV camera hat for the T-Bot. The T-Bot is being controlled using the Python Joystick bridge. OpenCV is being used to pull in the video stream and transform the frames to a birds eye view. All of this is being done on the Raspberry Pi 4 at 30 FPS.

You can now use low cost wireless controllers or PS3 / PS4 controllers to control your T-Bot. The python code makes use of Pybluez and Pygame. On Linux. You can modify the code to use pyserial for Windows or Mac (see https://github.com/garethnisbet/T-BOTS/blob/master/Joystick/joystick_Mac.py).

The three point turns have not been coded specifically. They occur naturally out of the control algorithm.

I added a function generator to help with the machine control tuning (not the T-Bot tuning).

You can find it here.

You can control the T-Bot using a webcam and opencv HSV colour based tracking. You can find the code here.

You can find some example code in the development folder in the T-Bot repository. I have deliberately left this unfinished to provide a challenge! You can see there is a lot of room for improvement!

The T-Bot tool kits have arrived!

Macro recording has been added to the Python T-Bot Controller. You can find it here. The response of the controller tends to be a bit slower on Windows or Mac than it is for Linux. You can try changing data = sock.read(32).decode(encoding=’utf-8′) to data = sock.read(16).decode(encoding=’utf-8′). You might sacrifice the quality of the data plotting.

Press the yellow button to record your command macro and the green button to play it back. Note, you will be locked out of the GUI during play back. There is also a trash button to clear the macro. While the macro replay will exhibit characteristics of the original sequence, the stochastic nature of the T-Bot’s movement means even repeated replays of the macro will be far from identical.

The red record button is for recording the incoming data. The speed factor is applied when using the arrow keys to control your robot.