jwatte / donkey_racing Goto Github PK

https://github.com/jwatte/donkey_racing/blob/master/teensy_hat_firmware/teensy_hat_firmware.ino

Your documents and some of the code comments list being able to send commands from the Pi to the Teensy to get feedback, to start driving, or to shut off the hat's power.

I've tried configuring the Pi's Serial port per these instructions and connecting to the /dev/ttyS0 port (Pi 3) with minicom, but I get no output, and no reaction.

If I am reading the code correctly, sending a "Q" should return some status, including battery voltage?

Can you give some examples on how to talk to the Teensy, from the Pi via the Serial or I2C port?

Hi,

I'm trying to run the code in 'calibrate_camera'

When I do so, I am getting the following error on my 'stock' donkey car install:

(dk) pi@d2:~/donkey_racing/calibrate_camera $ python capture_images.py
OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvWaitKey, file /home/pi/opencv-3.3.0/modules/highgui/src/window.cpp, line 676
Traceback (most recent call last):
  File "capture_images.py", line 9, in <module>
    cv2.waitKey(1)
cv2.error: /home/pi/opencv-3.3.0/modules/highgui/src/window.cpp:676: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvWaitKey

I ran the install.sh script on the donkey's raspberry pi, but am still getting the error.

In order to use your calibration code, do I need to recompile OpenCV on the donkeycar pi to fix this error? or am I doing something else wrong/neglected a step?