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An Arduino Project. A simple AS5048 based infinitely rotating knob that you can add to any electronics project

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MatrixOrbital/EVE-Knob

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A small quantity of joy is added to the Universe each time a knob is spun.

Using the AS5048B from AMS allows the knob to rotate freely and infinitely while reading the position via I2C. AMS makes a handy and inexpensive eval-board which is available from Mouser: 985-AS5048A-TS_EK_AB

In essence, this is a rotational encoder capable of 1/20th degree resolution (7300 counts per revolution). The technology is also useful in robotics to quantify wheel rotation or joint extension.

  • Designed for Matrix Orbital EVE2 SPI TFT Displays

    https://www.matrixorbital.com/ftdi-eve

  • This code makes use of the Matrix Orbital EVE2 Library found here:

    https://github.com/MatrixOrbital/EVE2-Library

    • While a copy of the library files (Eve2_81x.c and Eve2_81x.h) is included here, you may look for updated files if you wish. This is optional, but the Eve2-Library is likely to contain an extension of what you have here in case you wish to make some more advanced screens.
  • Matrix Orbital EVE2 SPI TFT display information can be found at: https://www.matrixorbital.com/ftdi-eve

  • An Arduino shield with a connector for Matrix Orbital EVE2 displays is used to interface the Arduino to Eve.
    This shield includes:

    • 20 contact FFC connector for Matrix Orbital EVE2 displays
    • 3 pushbuttons for application control without requiring a touchscreen (useful for initial calibration)
    • Audio amplifier and speaker for audio feedback
    • SD card holder
    • Additionally, the shield board is automatically level shifted for 5V Arduino and works with 3.3V Parallax Propeller ASC+

    Support Forums

    http://www.lcdforums.com/forums/viewforum.php?f=45

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An Arduino Project. A simple AS5048 based infinitely rotating knob that you can add to any electronics project

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