Category Archives: eMotion

Reflow hooray!

With a few dozen boards to be manufactured and given the limited time frame, I decided to try my luck with an own reflow oven. I went for PCB-Pool‘s approach that combines their PCB and stencil production services with a … Continue reading

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Industrial design collaboration

With the first two prototypes completed, we had to consider options on how to proceed towards the final product. While we could have strapped off-the-shelf boxes to an ordinary glove, something more elegant was desired, so the call went out … Continue reading

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Second prototype

Second prototype, now complete with DC-DC converter and OpAmps for GSR and the optical pulse signal. The board matches the size of the Lantronix Matchport.

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Optical heart rate sensor

Most mobile heart rate systems take their measurements from a simplified EKG circuit mounted on a breast belt. As it will be too cumbersome to ask museum visitors to don this, we decided to go for an optical sensor that … Continue reading

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First GSR prototype

Decided to base the sensor system on Cypress’ PSoC architecture to explore the possibilities regarding its configurable analog subsystem. For now I’m using it to control the gain of the second stage GSR amplification. Regarding wireless transmission we settled on … Continue reading

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New project: eMotion

The eMotion project aims to analyse the experience of museum visitors by tracking their position as well as biometric parameters. My contribution will be a wireless GSR sensor to measure skin resistance and heart rate, while tracking will be accomplished … Continue reading

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