In the practical application of flexible piezoresistive sensors, pursuing a balance of high sensitivity, wide detection range, and excellent durability remains a core challenge. This study reports a flexible piezoresistive sensor with a sandwich structure, whose core sensing material is a carbon reduced graphene oxide film (C-rMOF) and encapsulated with polydimethylsiloxane (PDMS) C-rGOF@PDMS ）. The sensor is prepared using a hydrazine hydrate assisted gradient foaming strategy combined with high-temperature carbonization technology, forming a C-rMOF sensing core with a uniform and stable three-dimensional porous structure.   

This device achieves collaborative optimization of key performance indicators: high sensitivity up to 122 kPa − 1, wide detection range of 0.01-1300 kPa, fast response/recovery time of 70/52 milliseconds, ultra-low detection limit of 100 milligrams, and stable cycle performance of over 40000 times under 1 kPa pressure. With these characteristics, the sensor can accurately capture broad-spectrum signals of human movements, covering a complete range from subtle physiological activities such as frowning and swallowing to dynamic movements of the elbow and knee joints. By integrating a 4 × 4 sensor array and adopting a column scanning circuit strategy, signal crosstalk is effectively suppressed, achieving dynamic spatial pressure mapping. In addition, the integrated tactile glove system based on Arduino controller has successfully transformed common gestures (including digital gestures from 1 to 5, finger heart gestures, and fist clenching movements) into stable and precise control of biomimetic robotic hands. This research, from material design to system integration, provides a paradigm for building high-performance, low-cost, and scalable flexible tactile systems, with broad application prospects in the fields of medical rehabilitation, intelligent prosthetics, and remote operation.