Programming, Electronics and other Cool Stuff

Index

This website is added to almost every week, so check often for updates, or drop me an email at tech@profpetabyte.co.uk and I'll let you know when significant updates happen.

Enjoy.

• Assembly Language
  Learn how to really talk to your Microprocessor with my Assembly Code course.
• Resistors
  Resistors appear by the dozen in millions of everyday objects. Know more about them here.
• Shift Registers
  If you like building things with lots of flashy lights, Shift registers are your best friends.
• Integrated Circuits
  Integrated Circuits are what most people are referring to when they say "Microchips". Here are some common ones...
• SSD1306 Displays
  SSD1306 Displays are small cheap displays commonly used on Microcontrollers.
• Float Switches
  If you want to register depletion of a liquid from a container, e.g. water in a bucket, Float Sweitches are for you.
• Infrared Control
  An much overlooked solution to controlling small projects.
• Keypads
  Keypads are a simple to use, simple to incorporate solution for simple basic input.
• MOSFETs
  MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are a type of transistor widely used for switching and amplification in electronic circuits. Read about them here.
• Relays
  COMING SOON
  When you need to use a tiny current to switch a big curent, a Relay is your friend.

• Artificial Intelligence
  There are many AIs available for public use, which can be helpful many ways. Here are a few of them.
• FTP - File Transfer protocol
  COMING SOON
  Especially with web development, there is often a need to move files between computers, e.g. Development PC and Webserver. FTP is the usual solution.

• Raspberry Pi Pico Power Pins
  Raspberry Pi Pico's have lots of Power Pins, and each have specific purposes.
• Raspberry Pi Pico GPIO Pins
  Raspberry Pi Pico's have lots of GPIO, and many have specific purposes.

• SQL Multiple Combination Aggregates
  SQL is very good at counting records, and counting combinations is easy.
• MQTT - Message Queuing Telemetry Transport
  MQTT is used for lightweight, efficient messaging between devices in IoT systems, enabling real-time data exchange over unreliable networks.
• C++ Basics
  C++ is one of the most widely used coding languages and definitely something every developer should be aware of.
• Using SQLite with C++
  SQLite3 is an implementation of SQL that is ideal for training. Here is how to install it on Windows11, and how to use it with C++

• General Q&A
  This page is a collection of random questions (& answers) often asked by Pico users.
• Parallel Printers
  Why is the once ubiquitous Centronics connection now obsolete?
• Common Communications Acronyms
  Like other technical subjects, communications is riddled with confusing and sometimes obscure acronyms. This page lists 100 of the most comminly used ones.

by Professor Petabyte