benb116 / etch

An auto-drawing digital Etch a Skech

Hi! I'm Ben

I'm a software engineer that loves building products that are useful, innovative, and fun!

Things I code with

Selected projects

• 🏈  Ball Street - A live-trading daily fantasy football game where players try to beat the market (Node.js, React, PostgreSQL, Redis)
•   Etch - A giant digital Etch-A-Sketch that can draw images on its own (Python, JavaScript, Raspberry Pi)
• 💵  Arbitrage Trader - Automated futures trading with guaranteed profit (ask me about it!) (Node.js)
• 📖  PennCourseSearch - An improved course search and scheduling website used by thousands of students (Node.js, Angular)
• 🌎  My Portfolio Website - Where I show off cool things I build

etch's Issues

Try to use multiple CPU cores

https://docs.python.org/3/library/multiprocessing.html

When crunching images, break up long-running tasks where possible and run in parallel.

ConnectSubgraphs (allow for possibility of double linking subgraphs)
LinkDegOne & LinkDegOdd (check if node being connected to is in degone/degodd before connecting)
PathFinder (calculate path lengths separately and add duplicate paths)

opening browser external to rPi

Looks like a fun project and love the effort to make it looks like a BIG ETCH-a-Sketch.

I was playing with the code a bit and trying to figure out installation and how it works when I noticed I could not connect to the server on the rPi from my desktop. Learned a bit about Flask....

I did get the client to run from my desktop with this in server.py:
#socketio.run(app)
socketio.run(app, host='0.0.0.0', port=5000, debug=True)

I also changed the two references to "localhost" in public/art/index.html to the hostname of my rPi.

Now if I can only solve the socketio version error the server spits out:
The client is using an unsupported version of the Socket.IO or Engine.IO protocols (further occurrences of this error will be logged with level INFO)

HYBRID mode

Did you experiment with a HYBRID mode where the MANUAL mode is active while AUTO mode controls the knobs (but the direct drawing from the pattern is disabled)? It might be interesting to see how those drawings come out.