... | ... | @@ -496,3 +496,23 @@ Goal of this project would be the development of a Free and Open Source (FOSS) d |
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**Technologies / Requirements**
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USB, Wireshark, Python, HID driver development (libusb)
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## [Internship / Bachelorthesis] Evaluate different low-force sensor technologies
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Our FLipMouse device is used to control PCs or smartphones via minimal finger or lip movements (https://github.com/asterics/flipmouse).
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To achieve this high sensitivity, 4 so called FSR sensors are used (https://www.interlinkelectronics.com/force-sensing-resistor). These are of high quality, long endurance and high sensitivity. Nevertheless, there are a few drawbacks:
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* __Expensive:__ Around 15-20% of total BOM costs are only these 4 sensors
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* __Sensitive:__ As the base material is plastic, soldering is sensitive.
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Goal of this thesis or internship is the evaluation of different sensor types as replacement:
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* Build prototypes for your sensor selection
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* Gather data for: sensitivity, endurance & repeatability
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We have a few suggestions to start:
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* __Velostat:__ A very cheap force sensitive foil (https://www.adafruit.com/product/1361)
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* __Magnetometer:__ General sensor to detect magnetic fields. The mechanics can be varied and are subject to the evaluation. A nice example for a fully 3D printed mechanic assembly: https://hackaday.com/2021/05/25/3d-printed-joystick-using-spherical-flexure-joint/
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**Technologies / Requirements**
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C (Firmware), 3D printing, FreeCAD |
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