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Rev | Author | Line No. | Line |
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964 | - | 1 | LoCoHead - The low-cost head tracker project |
2 | Mathias Kreider, 2011 |
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4 | LocoHead modules are approved for private and commercial use. |
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6 | LocoHead source code and hardware designs are for private use only, |
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7 | they may NOT be used in commercial software or designs. |
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8 | |||
9 | The purpose of this project |
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10 | The goal of LoCoHead is the realisation of a lean head tracking solution in |
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11 | software and hardware. It was based on the 3-axis LSM303DLH |
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12 | Magnetormeter / Accelerometer, including data processing and |
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13 | Output as a PPM or serial channel in order to control the actuators of camera mounts/gimbals. |
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17 | Version 0.1 utilises the Polulu breakout board with ATMEGA32L |
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19 | LoCoHEad - Pros |
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20 | - Very low price in comparing two of gyro-based systems there |
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21 | - No Drift |
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22 | - pitch, roll and yaw axis, ie. all-natural movement of the head is covered |
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23 | - All sensor functions in one chip, no mechanical alignment / vertical boards needed |
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24 | - Simple interface |
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25 | - Easy sensor calibration |
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26 | - Open source software |
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27 | |||
28 | LoCoHead - Contra |
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29 | - influenced by magnetic interference |
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30 | - influenced by strong dynamic acceleration, esp Axial |
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31 | - Lower resolution of the yaw axis (+ / - 0.5%) than that of roll and pitch (+ / - 0.05%) |
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33 | Part of LoCoHead's code is based on the polulu example |
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34 | (see polulu_LICENCE.txt) |