Remote chef

Internet of Knives device. Control an chef's knife from anywhere over the internet.

Setup

• Raspberry Pi 4
• Raspberry Pi Motor HAT
• NEMA 17 stepper motor
• NEMA 17 stepper motor bracket
• NEMA 17 Cork Dampers
• Raspberry Pi Camera
• Gate fitting
• Cutting board
• Shaft coupling 5mm
• 2 Springs
• Screws
• 2 wooden cubes 6x6x6 cm
• wiring
• Universal AC - DC adapter

Installation

Install FFMPEG on the Raspberry Pi (could take a while)

TODO

• Add requirements.txt
• Test Flask
• Auto start Flask app (NGINX + WSGI)
• Configure router to forward requests to Flask Can't, protected
• ~~Add reverse tunneling ~~
• Add button to website

Start application

Youtube livestream

Replace <code> with the YouTube livestream key.

raspivid -o - -t 0 -vf -hf -fps 60 -b 12000000 -rot 180 | ffmpeg -re -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -i - -vcodec copy -acodec aac -ab 384k -g 17 -strict experimental -f flv rtmp://a.rtmp.youtube.com/live2/<code>

Flask

Auto starts with uWSGI / NGINX

Reverse SSH tunnel

The RPi creates a reverse SSH tunnel to a VPS server that has NGINX installed. On click there will be a GET request that is passed through to the Raspberry Pi.