wireless identification and sensing platform

{{Infobox OS

| name = WISP

| logo =

| screenshot =

| caption =

| developer = Intel Research Seattle

| family = Embedded operating systems

| released =

| language =

| ui =

| license = Creative Commons Attribution License

| website = https://sites.google.com/uw.edu/wisp-wiki/home

| source_model = Open source

| kernel_type =

| supported_platforms =

| latest_release_version = 5.1

| latest_release_date =

| latest_test_version =

| latest_test_date =

| marketing_target = Wireless sensor networks

| programmed_in = C, Assembly

| prog_language =

| updatemodel =

| package_manager =

| working_state = Current

}}

A wireless identification and sensing platform (WISP) is an RFID (radio-frequency identification) device that supports sensing and computing: a microcontroller powered by radio-frequency energy.

{{cite book

| title = RFID and sensor networks: architectures, protocols, security, and integrations

|author1=A. Mitrokatsa |author2=C. Dougligeris

|name-list-style=amp |editor1=Y. Zhang |editor2=L. Tianruo Yang |editor3=J. Chen | chapter = Integrated RFID and sensor networks: architectures and applications

| publisher = CRC Press

| year = 2009

| isbn = 978-1-4200-7777-3

| page = 517

| chapter-url = https://books.google.com/books?id=SIJLavpUAJoC&pg=PA517

}}

That is, like a passive RFID tag, WISP is powered and read by a standard off-the-shelf RFID reader, harvesting the power it uses from the reader's emitted radio signals. To an RFID reader, a WISP is just a normal EPC gen1 or gen2 tag; but inside the WISP, the harvested energy is operating a 16-bit general purpose microcontroller. The microcontroller can perform a variety of computing tasks, including sampling sensors, and reporting that sensor data back to the RFID reader. WISPs have been built with light sensors, temperature sensors, and strain gauges. Some contain accelerometers.

{{cite book

| title = Ambient intelligence: European conference, AmI 2007, Darmstadt, Germany, November 7-10, 2007 : proceedings

|author1=E. M. Tapia |author2=S. S. Intille |author3=K. Larson |name-list-style=amp |editor1=B. Schiele |editor2=A. K. Dey |editor3=H. Gellersen | chapter = Portable wireless sensors for object usage sensing in the home: challenges and practicalities

| publisher = Springer

| year = 2007

| isbn = 978-3-540-76651-3

| page = 23

| chapter-url = https://books.google.com/books?id=TGo1Ikv9ECoC&pg=PA23

}}

WISPs can write to flash and perform cryptographic computations. The WISP was originally developed by Intel Research Seattle, but after their closure development work has continued at the Sensor Systems Laboratory at the University of Washington in Seattle.