pippcat / drawing-robot

Has an arm, can draw.

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Drawing robot

This project uses an RaspberryPi 3, a PCA9685, some servo motors and a pen to draw a picture like a human would do.

Bokeh is used to provide a web app which allows to upload and modify images in the webbrowser as well as simultaneously watch the drawing process in a simulator. Image upload from the controlling device is possible.

Watch the video

Usage

Startup

  • check and modify config.ini
  • start with bokeh serve drawing-robot on level above the "drawing-robot" directory
  • if you're using an external device to control it make sure that the IP is whitelisted: bokeh serve --allow-websocket-origin localhost:5006 --allow-websocket-origin IP_OF_EXTERNAL_DEVICE:5006

Web Interface

  • open the bokeh app in your browser: http://localhost:5006/drawing-robot
  • upload an image by clicking on the choose file button
  • check the image modification process by scrolling down
  • you might want to change output size, threshold or edge detection algorithm and recalculate the result by clicking on apply changes
  • if you're satisfied you might want to open the simulator Tab and start the drawing process by clicking onto the start button
  • you can pause the drawing process by clicking on the Stop button - the robot will finish it's current line and halt then
  • you might also go back to the Image processing tab and change the image, the drawing process and simulator will then be reset.

Documentation

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Has an arm, can draw.


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Language:Python 100.0%