Welcome to the WISP5 Wiki

What is the WISP?

The Wireless Identification and Sensing Platform (WISP) is an open source and fully hackable battery-free platform for experimentation with low-power sensing, computation, and communication. This wiki is a place for users and developers of the WISP to compile resources related to the WISP, to share knowledge, and to collaborate on large-scale projects.

A Few Guidelines

  • Check out the wiki sections in the navigation panel. First time users should look at the Getting Started section and also read through the FAQ

  • Source code and design files for the WISP5 are open source: WISP5 Firmware and Hardware

  • Got questions, or running into trouble? Got ideas for future WISP versions? Please email us at mailwisp at gmail dot com

  • The WISP5 is the latest iteration of the WISP. For resources related to the earlier WISP versions, see WISP 4.1, WISP 4.0

  • Looking for the NFC based WISP? The NFC-WISP interfaces with smartphone readers and more! See the NFC-WISP wiki


  • New! Compatibility with Impinj R420 readers sold in Asia (R420-GX2). See the 436kHz branch of the WISP5 Firmware Repository to get your WISPs talking to readers not sold in the USA.

  • Energy-optimized firmware stack with support for FM0 modulation and simpler application interface.

  • Read and Write command support out of the box.

  • MSP430FR5969 microcontroller with FRAM non-volatile memory for ultra low energy data storage and retrieval. * ADXL362 accelerometer with ridiculously low power consumption.

  • Coming Soon!

    • WISPCam 1.0

    • Ambient Backscatter WISP

    • Software Defined Reader

Related Publications

  • Battery-free Video Streaming Camera System - IEEE RFID 2019

  • RF Bandaid: A Fully-Analog and Passive Wireless Interface for Wearable Sensors - Ubicomp 2018

  • RF-powered, Backsccatter-based Cameras - EUCAP 2017

  • Fast Downstream to Many (Computational) RFIDs - INFOCOM 2017

  • FM Backscatter: Enabling COnneceted Cities and Smart Fabrics - NSDI 2017

  • Passive Wi-Fi: Bringing Low Power to Wi-Fi Transmissions - NSDI 2016

  • Inter-Technology Backscatter: Towards Internet Connectivity for Implanted Devices - SIGCOMM 2016

  • Battery-free Connected Machine Vision with WISPCam - GetMobile Magazine 2016

  • WISPCam: An RF-Powered Smart Camera for Machine Vision Applications - ASPLOS HLPC 2016

  • BLISP: Enhancing Backscatter Radio with Active Radio for Computational RFIDs - IEEE RFID 2016

  • uMonitor: In-situ Energy Monitoring with Microwatt Power Consumption - IEEE RFID 2016

  • Wisent: Robust downstream communication and storage for computational RFIDs - INFOCOMM 2016

  • Self-Localizing Battery-free Cameras - Ubicomp 2015

  • NFC-WISP: An Open Source Software Defined Near Field RFID Sensing Platform - Ubicomp 2015

  • WISPCam: A Battery-Free RFID Camera - IEEE RFID 2015

For a more exhaustive list, please see the publications page.