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Li Yunzhu's team presents FlexiTac open-source progress at IROS 2026

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At the IROS 2026 tactile workshop, Yunzhu Li's team from Columbia University presented the progress and ecosystem of the open-source flexible piezoresistive tactile sensor platform FlexiTac, a year and a half after it was open-sourced. The sensor takes only 3 minutes to assemble and can be bent, cut, and wrapped around different surfaces such as gloves, fingertips, or robot skin; the team says that anyone with a 3D printer capable of printing a low-cost SO-100 robotic arm can integrate the sensor into it. The team has integrated FlexiTac into LeRobot and modified the UMI handheld device to add tactile recording, for synchronized visual-tactile data collection and policy pretraining. ADI is advancing a commercial version, saying its tactile resolution reaches five times that of a human finger and that it is mass-produced using semiconductor manufacturing processes; the team has demonstrated the commercial prototype at multiple conferences, including GTC.