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DIY Canon IR Remote

Hardware components: Atmel ATtiny13a CHF 1.25 × 1 Osram SFH409 IR Diode CHF 0.75 × 1 Battery holder CR1220 CHF 0.65 × 1 Coin Cell Battery CR1220 3V × 1 Push Button CHF 0.25 × 1 Resistor 15Ω CHF 0.07 × 1 Micro Slide Switch SK12D07 CHF 0.28 × 1 Hand tools and fabrication machines: Soldering iron (generic) 3D Printer (generic) Story Introduction Canon SLR cameras have two ways of remote triggering: Either via ...

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How to fix dead atmega and attiny avr chips

Atmega fusebit doctor, as name says it, device for repairing dead Atmega and Attiny family AVRs by writing fabric fusebits. Most common mistakes or problems are a wrong clock source (CKSEL fusebits), disabled SPI programming (SPIEN fuse) or disabled reset pin (RSTDISBL fuse). This simple and cheap circuit will fix you uC in a fraction of a second. If in first case we can help ourself with clock generator, t ...

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The Webcam Mouse Using Atmega1284

For our ECE 4760 final project, we designed and built a pointing device with webcam-color-tracking based movement control.  Our implementation allows the user to wear a set of finger-sleeves complete with buttons for clicking and scrolling and a red LED for color-tracking cursor control to interface with a computer as a normal mouse would.  Users have the freedom to control their computer’s cursor movements ...

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BrainMap: fNIR imaging of the brain Using Atmega644

Introduction Our project records and extracts event-related features from a 36-point relative blood-oxygen concentration sensor array from the surface of the brain. We chose this project because of a combined interest in brain-computer interfaces. In an attempt to balance cost, complexity, and sensor density, we decided to implement a NIRS-inspired system. After collecting data from the array, the results w ...

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GoConn Bicycle Computer Using Atmega 32

Introduction This project is a bicycle computer that includes velocity monitoring, calorie computation, an audio/visual alarm, and a wireless remote. Bicycles are great for transportation as well as exercise. Unfortunately, many bicycles across campus and around the world are stolen everyday. We designed a computer that would deter someone from stealing the bicycle while also providing information useful fo ...

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Homemade VGA Adapter using ATmega644

Introduction Motivation The goal of our project is to create a VGA video adapter. This “homemade video card” should be able to connect to any monitor that subscribes to VGA standards with a standard connector and display the desired material reliably. The challenges involved here stem from adapting a general use microprocessor that we are familiar with to a specific task that it may (or may not) be suited t ...

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DIY Polygraph Mask using ATmega32

Introduction A polygraph (often and incorrectly called a 'lie detector') is a machine which plots in real time several human biological signals such as pulse rate, galvanic skin resistance (GSR), blood pressure, and breathing rate. This machine, in conjunction with a certified examiner, is then used to analyze a subject's stress during interrogation with the intent of distinguishing truth from lying. These ...

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