Interfacing external sensors with Android smartphones through near field communication
Leikanger, Tore; Häkkinen, Juha; Schuss, Christian (2017-02-15)
Leikanger, T., Häkkinen, J., & Schuss, C. (2017). Interfacing external sensors with Android smartphones through near field communication. Measurement Science and Technology, 28(4), 44006. https://doi.org/10.1088/1361-6501/aa57da
© 2017 IOP Publishing Ltd. This is a peer-reviewed, un-copyedited version of an article accepted for publication/published in Measurement Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6501/aa57da
https://rightsstatements.org/vocab/InC/1.0/
https://urn.fi/URN:NBN:fi-fe2019082325281
Tiivistelmä
Abstract
In this paper, we present and evaluate a new approach to communicate with inter-integrated circuit (I2C) enabled circuits such as sensors over near field communication (NFC). The NFC-to-I2C interface was designed using a non-standard NFC command to control the I2C bus directly from a smartphone, which was controlling both, the read and write operations on the I2C bus. The NFC-to-I2C interface was reporting back the data bytes on the bus to the smartphone when the transaction was completed successfully. The proposed system was tested experimentally, both, with write and read requests to a commercial microcontroller featuring a hardware I2C port, as well as reading a commercial I2C enabled humidity and temperature sensor. We present experimental results of the system which show that our approach enables an easy interface between smartphones and external sensors. Interfacing external sensors is useful and beneficial for smartphone users, especially, if certain types of sensors are not available on smartphones.
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