0,0 → 1,34 |
LoCoHead - The low-cost head tracker project |
Mathias Kreider, 2011 |
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LocoHead modules are approved for private and commercial use. |
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LocoHead source code and hardware designs are for private use only, |
they may NOT be used in commercial software or designs. |
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The purpose of this project |
The goal of LoCoHead is the realisation of a lean head tracking solution in |
software and hardware. It was based on the 3-axis LSM303DLH |
Magnetormeter / Accelerometer, including data processing and |
Output as a PPM or serial channel in order to control the actuators of camera mounts/gimbals. |
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Version 0.1 utilises the Polulu breakout board with ATMEGA32L |
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LoCoHEad - Pros |
- Very low price in comparing two of gyro-based systems there |
- No Drift |
- pitch, roll and yaw axis, ie. all-natural movement of the head is covered |
- All sensor functions in one chip, no mechanical alignment / vertical boards needed |
- Simple interface |
- Easy sensor calibration |
- Open source software |
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LoCoHead - Contra |
- influenced by magnetic interference |
- influenced by strong dynamic acceleration, esp Axial |
- Lower resolution of the yaw axis (+ / - 0.5%) than that of roll and pitch (+ / - 0.05%) |
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Part of LoCoHead's code is based on the polulu example |
(see polulu_LICENCE.txt) |