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Search results: 58   Output: 31-40
  1. Part 1 Description and Schematic Part 2 Firmware and Sowtware Assembly Because the circuit was so simple I took the easy way out and assembled it on a piece of veroboard. Nowadays I would design my own printed circuit board (see custom PCBs). ...
    06-06-2012
  2. Part 1 - Description and Schematic PIC Firmware The firmware running on the PIC18F2550 was written for the CCS C compiler and uses the CCS USB protocol stack, which in turn appears to be derived from Microchip code. At the top level it is quite ...
    06-06-2012
  3. Have you ever wondered exactly what is going on in the 2.4GHz WiFi and ISM band around your house. What channel is it best to set your wireless router to? Why are you getting such poor performance across your WiFi network? Is your neighbour on the ...
    06-06-2012
  4. This shield could be used as a stand-alone transponder key, or with Google’s servers to create a cloud-computing application. It’s time to present you an application with RFID. We want to show you how to use the popular Arduino to ...
    31-05-2012
  5. Jefferay Lawton, Microchip Technology Varactor (or “varicap”) diodes are used primarily in radio-frequency (RF) circuits to provide a capacitance that can be varied by changing the applied voltage. These types of diodes often are used ...
    29-02-2012
  6. Part 1 - How does RFID work, Whats stored on the card Part 2 - Schematic and PCB The software was next. Using the Arduino IDE, I implemented a simple menu system that allowed me to enter the relevant facility and CardID data directly from the ...
    02-02-2012
  7. Part 1 - How does RFID work, Whats stored on the card So the next step was to identify how to pretend to be a card - I wanted a card that I could type a card number into, so it had to have a microprocessor on it, was well as a keypad to allow the ...
    28-01-2012
  8. RFID projects have been pretty prominent recently, ranging from projects here in Instructables, to our local Silicon Chip magazine in Australia publishing a RFID door lock project in their November issue. Even I recently purchased a RFID door lock ...
    27-01-2012
  9. Part 1 - Schematic and Firmware Improving the emulator In the previous emulator schematic no inductance value has been defined.To improve the carrier reception - and therefore the reading distance -, the inductance and the capacitance should be ...
    27-11-2011
  10. When looking for a low frequency RFID emulator for security testing purposes, you can find several designs out there. However, their complexity can make you think twice before building one. Is necessary that complexity? In some cases you don't ...
    25-11-2011
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