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Copy Protection in Modern Microcontrollers

Posted April 15, 2018 by Chris

"This article is based on the research made between 1996 and 2000. The past ten years of my research into hardware security showed that any microcontroller, FPGA, secure memory, smartcard, ASIC or custom chip can be successfully attacked given enough time and resources. The question is whether the semiconductor chip used in a particular application can withstand multi-million-dollar attack or would fail to defeat a 10-dollar attack."

Constructing a Bluetooth controlled Robot

Posted April 11, 2018 by Chris

"In this post, I’ll show how to construct a robot with .NET Gadgeteer and how to control it using a Bluetooth connection from a PC application based on the 32feet.NET library. Let’s start from .NET Gadgeteer part. The base of our robot is the Rover 5 Tank Chassis, that provides two motors that can be easily controlled by the Motor Driver L298 Module."

D.I.Y. 512Kb NINTENDO Game Boy Flash Cartridge

Posted April 6, 2018 by Chris

"Hopefully the information I have posted here will help you all succeed in building your very own Nintendo Gameboy Flash Cartridges. Soon enough you’ll be up and testing your own custom code or custom games on the real hardware."

The Ghost Gunner

Posted April 1, 2018 by Chris

"Ghost Gunner is a non-profit open source hardware effort by Defense Distributed. Ghost Gunner builds on the open source community’s existing hard work, including the gshield 3 axis motion hardware, the grbl g-code parser and motion controller, and the legendary Arduino microcontroller. All GhostGunner schematics and design files will be published into the public domain."

Arduino Programming With Shift Registers

Posted March 29, 2018 by Chris

"Today I’ll attempt to teach you a little bit about Shift Registers. These are a fairly important part of Arduino programming, basically because they expand the number of outputs you can use, in exchange for only 3 control pins. You can also daisy-chain shift registers together in order to get even more outputs."

300mW DIY Laser Cutter

Posted March 26, 2018 by Chris

"I built this laser cutter after being inspired by [a project I saw] and the design is almost identical, there for I will not go into details about my build but will instead focus on what you can do with it."

8-bit embedded TurkeyShield

Posted March 23, 2018 by Chris

"I’m always looking out for new ways to add more shields and components to my Arduino, and this felt like a natural experiment, so I gave it a shot: it’s an Arduino, Potentiometer, accelerometer, compass, Lithium Backpack, and TouchShield Stealth wired through a fairly large turkey :)"

Wireless BusCounter

Posted March 20, 2018 by Chris

"I’ve been working on creating a cheap, time-lapse camera that people could use to ‘sense’ the world around them. The cost of such a device would be around $10, when all is said and done, and having multiple of these devices would open up options for public computing that people have not considered – a world where people are willing to deploy “personal, public” electronics throughout their environment with the same ubiquity, recyclability and reusability as paper."

Breadboarded 9 Volt Battery Charger

Posted March 17, 2018 by Chris

"9 Volt batteries extensively used in various electronics measurement equipment. Powering these devices with rechargeable batteries can be a cost effective solution. In this post a simple Lithium-ion 9 Volt Battery Charger design with overcharging protection will be presented. Charger is based on PIC16F876A microcontroller and uses its A/D module to monitor current flow into the battery."

The Occam’s Microcontroller

Posted March 14, 2018 by Chris

"’Occam’s Microcontroller’ is my article in the Autumn 2013 edition of the G-QRP Club’s ‘SPRAT’ Journal – and the subsequent presentation at The G-QRP Club’s Rishworth QRP Convention, 26th October 2013. This page exists to provide supporting resources for the article (and for subsequent presentations associated with it). These resources include code, schematics and PCB design files."