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  • FPGA Simulates Analog Computer

  • The general approach using DDAs will be to simulate a system of first-order differential equations, which can be nonlinear. Analog computers use operational amplifiers to do mathematical integration. We will use digital summers and registers. For any...
  • Infrared serial link for AVR

  • Full documentation at http://people.ece.cornell.edu/land/courses/ece4760...The receiver circuit is shown in the picture. The RC circuit acts a low-pass filter on the power to surpress spike noise and improve receiver performance. The RC circuit should...
  • piculear

  • piculearThis incomplete but slowly progressing project has the ultimate goal of producing a reliable PIC ICSP programmer that just works and can be more readily picked apart, examined, and/or replaced than a comparable Microchip programmer (for instance,...
  • SonoMKR Noise Monitoring

  • Features Capture audio input from 1 or 2 channels (configurable)Calculate the noise level, in dB, from every channel, in thrid octave bands plus the LAeq level in dB(A), every second.Write the measured noise levels in a CSV file (file duration is configurable).Send...
  • HydraNFC Shield v1

  • Features of the HydraNFC embedded firmware HydraFW: Virtual Serial Port access through microUSB with VT100 terminal/shell (compatible with any hardware supporting USB Virtual Serial port). Basic UID read for Vicinity/ISO15693 (through shell command).Basic...
  • 50Watt Led portable

  • The flood light have several main components:1) Led2) Led cooling3) Led driver4) lithium battery5) aluminium  housingThe description1) LedIf i started 6 years ago with the project a 50W led was not know in our region and costs up to 100usd. Today...
  • DSP on 8-bit microcontroller

  • One of the most demanding applications for fast arithmetic is digital flitering. Atmel application note AVR201 shows how to use the hardware multiplier to make a multiply-and-accumulate operation (MAC). The MAC is the basis for computing the sum of terms...
  • Student AVR board

  • This page describes a prototype board for the Atmel Mega644 or Mega32 (PDIP) MCU. It includes a power supply, crystal clock, and generous bypass capacitors. A six-pin header allows flash memory programming from an STK500 or AVRISPmkII. All port pins...
  • NTSC Video on Atmel Mega644/1284

  • Video GenerationThere are several very good references for understanding how TVs are controlled by a pulse sequence. I particularly liked the Stanford EE281 Handout #7 entitled "TV paint". Also very useful were Software generated video, by Rickard Gunée,...
  • 100w LED projector conversion

  • This project started some months back. I was given two projectors, one with a bulb, one without. Not wanting to scrap either unit, equally not wanting to spend £100 on a bulb that would be prone to shock and likely to fail, I decided a more serious...