03/04

picked up the cameras and motors!

ordered a usb to usb-c cable for Neeti

installed OpenCV version running Python 3 on RPi Sam instead of using virtual environments

Figuring out how to process keystroke input on RPi without using GUI

TO-DO: waiting for the motor hat and usb to usb-c, using evtest for keystroke input, work with Arabella for physical design, communicating specific commands between RPis

Used the following step to install:

  • https://towardsdatascience.com/setting-up-raspberry-pi-for-computer-vision-installing-opencv-e0f973d38819
  • Followed steps till before “Now for step four, we shall be downloading the opencv source code and then building it for the pi.”
  • Then did: sudo pip3 install opencv-python
  • But getting: ImportError: /usr/local/lib/python3.7/dist-packages/cv2/cv2.cpython-37m-arm-linux-gnueabihf.so: undefined symbol: __atomic_fetch_add_8 when I try to import cv2 in python3
  • So did – pip3 uninstall opencv-python
  • Instead do first: pip3 install opencv-python==3.4.6.27


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