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dnaBin = {'A': '00', 'T': '01', 'C': '10', 'G': '11'}


def selectionMenu():
    response = input('\nWould you like to encode or decode DNA? [e/D]: ').lower()
    if response == 'e':
        text = input('\nInput text to encode: ')
        encodeDNA(text)
    elif response == 'd':
        text = input('\nInput DNA to decode: ')

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FFmpeg commands

A handy cheat sheet for various FFmpeg commands I use frequently.

H.265/HEVC encoding

ffmpeg -i input -c:v libx265 -c:a copy output

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import subprocess
import re
from prettytable import PrettyTable

airport = '/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport'

print('Scanning for networks...\n')

scan = subprocess.run(['sudo', airport, '-s'], stdout=subprocess.PIPE)
scan = scan.stdout.decode('utf-8')

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{
  "parserOptions": {
    "ecmaVersion": 2021,
    "ecmaFeatures": {
      "jsx": true
    },
    "sourceType": "module"
  },

  "env": {

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Safe SSH setup for your Pi

If you expose your Pi's SSH service to the web, you should seriously consider the security implications.

It is common for people to run mass port scans looking for open SSH ports and then run brute-force attacks against these ports hoping to crack the password and gain access to the system.

Follow this guide for a secure SSH setup.

Index

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FizzBuzz

My aim was to make multiple variations of the FizzBuzz game in various programming languages. Each language has different approaches ranging in simplicity.

Bash

Approach 1

Test for each of the three possibilities, echoing the number if none of them are met:

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Homebridge on a Raspberry Pi

This gist walks you through the method I used for setting up Homebridge on my Raspberry Pi 3 Model B. Many aspects are taken from the original Homebridge wiki. Note that steps can vary between Raspberry Pi models and as packages are updated or changed.

Index

Mandatory

• Prerequisites
• Basic setup
• Install node and npm with nvm

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#! /bin/bash

#DESCRIPTION: Pings all the IPs in the list and reports whether or not they are reachable

GREEN='\033[1;32m'
RED='\033[1;31m'
BLUE='\033[1;34m'
THICK='\033[1;37m' #For white backgrounds, use: THICK='\033[1;30m'
NC='\033[0m'

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Flashing a NodeMCU using the Arduino IDE (macOS)

Watch a demo here

Note: These steps will only work if your NodeMCU has the CP2102 chip onboard (instead of the CH340G chip).

1. Have the .ino script included in the repository downloaded and ready to go.

2. Download and install the Arduino IDE from here.