This is an archive of projects completed by others that I found interesting. These projects could come from various sources such as forums or websites I frequently visit, like Instructables or Hackaday, or they could be projects that I came across and felt were worth sharing.

High Altitude Balloon Tracker

If its not broken don't fix it, just add some more features. The Uno Plus+ is An Arduino Uno Compatible Board with a twist. All the components are on the bottom giving ample space to clearly label all the pins and even label the second and third function.

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High Altitude Balloon Tracker

Development of a tracker for Amateur Radio balloon flights. This has been going on for some time primarily with AVR based chips, and we are now launching RP2040 based hardware with functional 20 meter WSPR capability. APRS transmission in the VHF band are in development and coming soon.

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THE REAL JOHN WICK-STYLE BULLET PROOF SUIT

If you’ve seen the John Wick movies, you’ve probably had to suspend your disbelief about many things, but the bulletproof suits are perhaps the hardest thing to swallow. They look like stylish suits but are impervious to just about anything at any range. What’s more is when you are hit, they seem to absorb all impact with no effect on the wearer at all.

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ChatGPT by OpenAI

ChatGPT is an artificial-intelligence chatbot developed by OpenAI and launched in November 2022. It is built on top of OpenAI's GPT-3.5 and GPT-4 families of large language models and has been fine-tuned using both supervised and reinforcement learning techniques.

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Compact, low-power Geiger counter

A marker pen sized Geiger counter with up to 4 months battery life from 2xLR44, based on STM8L152K4 microcontroller.

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Simple 555 Timer Circuits & Projects

555 timer is an industrial standard IC existing from early days of IC. Its name is derived from three 5K ohm resistors ,connected in series used in it.The timer IC can produce required waveform accurately.

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How to Set Up a Raspberry Pi Web Server

One of the most popular uses of the Raspberry Pi is as a web server that lives on your local network. Whether you need an Intranet for your office or a small server for doing web development, the Pi is a great choice.

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Raspberry Pi-Powered Sugar Launcher

Inspired by a certain animated butter-passing robot, this boxy beast flings sugar cubes at your cup from afar.

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Pi Hole

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application which acts as a DNS sinkhole and optionally a DHCP server, intended for use on a private network. It is designed for low-power embedded devices with network capability, such as the Raspberry Pi, but supports any Linux machines.

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Putting an Afterburner on an electric ducted fan

Afterburners are commonly agreed to be the coolest feature of military fighter aircraft. Injecting raw fuel into the exhaust stream of a jet engine, afterburners are responsible for that red-hot flaming exhaust and the key to many aircraft achieving supersonic flight. [Integza] wanted to see if the same concept could be applied to an electric ducted fan, and set out to find out.

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Dyson Award for Emergency Medical Device for Stab Wounds

[Joseph Bentley] must be one of those people who sees opportunity in problems. He had several friends who were victims of knife attacks, so he developed REACT, a device that would allow police or other first responders to quickly help victims of stab wounds. The project won the Dyson award and you can see the video about it, below.

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Reflo Waffle: A dirt cheap reflow oven

This is a project I've been pursuing on and off for nearly 4 years: A small, portable, and dirt cheap (less than $25) reflow oven

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