A no-phone/no-app contact tracing hardware token

08/06/2020
by   T. Bensky, et al.
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We report the development of an open-source, hardware-based contact tracer, made from readily available parts, costing less than 20USD. This work was motivated by the need for a technology-assisted contact tracer that avoids privacy issues found with those involving a mobile phone. Contact tracing is done here without the use of a mobile phone or an app at all. Instead, contact tracing is implemented using Bluetooth Low Energy on an ESP32 micro-controller. The ESP32 is used to both advertise and receive health information to others in close proximity, forming a strictly peer-to-peer contact tracer. The contact tracer can be assembled by an individual and configured use within minutes.

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