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California Polytechnic State University, San Luis Obispo

Electronics

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Full-Text Articles in VLSI and Circuits, Embedded and Hardware Systems

Wireless Audio Bridge, Daniel L. Hodges Jun 2017

Wireless Audio Bridge, Daniel L. Hodges

Electrical Engineering

Bluetooth, a wireless technology standard used to exchange data using radio transmissions, has made a significant impact on the audio technology industry, specifically the way people listen to music. This technology enables a wireless listening experience, eliminating the need for wires or cables between audio devices as previously required. Audio can transmit from a cellphone or laptop (an output device) to a pair of headphones or speakers (an input device) without any physical connection. Compared to alternative wireless listening solutions (i.e. FM transmitter, radio broadcast), Bluetooth offers greater reliability, audio fidelity, portability, and ease of use. To obtain this functionality, …


Continuous Hand-Tool Leveling Device, Shaun Villa Koide Jun 2014

Continuous Hand-Tool Leveling Device, Shaun Villa Koide

Electrical Engineering

To produce clean and precise cuts, hand-tools (e.g. knives and saws) must maintain a consistent angle of orientation during the entire cutting process. The Continuous Hand-Tool Leveling Device mounts on the desired hand-tool and the user inputs the desired angle of the cutting plane. The device utilizes a microcontroller unit (MCU) and accelerometer to implement real-time angle measurement. When using a hand-tool, the device uses an LED that indicates that the hand-tool’s angle deviates from the user-set desired angle, which prevents any potential mistakes from occurring due to user error. The device easily mounts on many common cutting tools. Additionally, …