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Full-Text Articles in Computer Engineering

Purdue Air Sense: A Methodology For Improving The Accuracy Of Ambient Aerosol Mass Concentration And Size Distribution Measurement With Low-Cost Optical Sensing Techniques, Rishabh Ramsisaria, Satya Sundar Patra, Brandon Emil Boor Aug 2018

Purdue Air Sense: A Methodology For Improving The Accuracy Of Ambient Aerosol Mass Concentration And Size Distribution Measurement With Low-Cost Optical Sensing Techniques, Rishabh Ramsisaria, Satya Sundar Patra, Brandon Emil Boor

The Summer Undergraduate Research Fellowship (SURF) Symposium

There is a global lack of a means for monitoring air pollutant levels at a local level due to expensive and bulky instrument requirements. It is important to monitor toxic gas levels, as well as particulate matter levels, in the atmosphere to study their effects on human health and to further develop city- and community-level air pollution solutions. In this study, with the means of a Raspberry Pi, low-cost Alphasense Optical Particle Counter and gas sensors, and methodical calibration techniques, we built a portable 3-D printed module powered by clean electricity generated by an on-board Voltaic solar cell that measures …


Open Cortex-M0™ Modular Debug Unit, Chuan Yean Tan, Matthew Swabey Oct 2013

Open Cortex-M0™ Modular Debug Unit, Chuan Yean Tan, Matthew Swabey

The Summer Undergraduate Research Fellowship (SURF) Symposium

The debug unit of a modern digital system on chip (SoC) is a critical unit that allows users to monitor and analyze the chip’s activity that occurs throughout a SoC design. Selection of the debug unit’s correct feature set and architecture are critical to the success of the design. Debugging systems that exist have different architectures and are closely coupled to their host SoCs. As a consequence they are resource intensive to improve on due to the different nature of each SoC designs. Moreover, the bus protocols that allow the debug unit to interact with the SoC design are often …