mikeesto

Create a local WiFi hotspot with custom routing on the Raspberry Pi

This setup lets you:

• SSH into the Pi directly (e.g. ssh pi@raspberrypi)
• Access things running on the Pi (e.g. a web server)
• Set up fun domains that only exist within the local network, and can route to your services running on the Pi
• Prevents any access to the internet which can be useful if you are running the Pi as a tech demo, or for teaching etc

This is a modified/shorter version from the official Pi docs.

mikeesto

import csv

def generate_bibtex_key(authors, year):
    """Generate a BibTeX key from the first author's last name and the year"""
    last_names = authors.split(",")[0].split()
    last_name = last_names[-1] if len(last_names) > 0 else ""
    return f"{last_name.lower()}{year}"

def convert_csv_to_bibtex(csv_file, bibtex_file):
    """Convert a CSV file to BibTeX format"""

mikeesto

pm2 start script.py --interpreter python3

mikeesto

  import aws from "aws-sdk";
  
  const s3 = new aws.S3({
    endpoint: `https://${process.env.CLOUDFLARE_ACCOUNT_ID}.r2.cloudflarestorage.com`,
    accessKeyId: process.env.CLOUDFLARE_ACCESS_KEY,
    secretAccessKey: process.env.CLOUDFLARE_SECRET_ACCESS_KEY,
    signatureVersion: "v4",
  });
  
  const config = {

mikeesto

docker run -i --entrypoint=/bin/sh ...

mikeesto

docker buildx build --platform=linux/amd64 -t myimage .

mikeesto

# a fresh start
sudo apt-get -y update
sudo apt-get -y upgrade
# remove old versions, if not placed in a virtual environment (let pip search for them)
sudo pip uninstall tensorflow
sudo pip3 uninstall tensorflow
# install the dependencies (if not already onboard)
sudo apt-get install -y gfortran
sudo apt-get install -y libhdf5-dev libc-ares-dev libeigen3-dev
sudo apt-get install -y libatlas-base-dev libopenblas-dev libblas-dev

mikeesto

function get_line(start, end) {
  let [x1, y1] = start;
  let [x2, y2] = end;

  let dx = x2 - x1;
  let dy = y2 - y1;

  const is_steep = Math.abs(dy) > Math.abs(dx);

  // Rotate line

mikeesto

sudo date -s "$(wget -qSO- --max-redirect=0 google.com 2>&1 | grep Date: | cut -d' ' -f5-8)Z"

mikeesto

Reset USB ports on Raspberry Pi on boot

Add to /etc/rc.local:

# To shut off power on USB ports (this shuts power on ethernet as well):
echo '1-1' | tee /sys/bus/usb/drivers/usb/unbind

# To turn power back on
echo '1-1' | tee /sys/bus/usb/drivers/usb/bind