A new architecture of organic memristive device is proposed with a double-layered polyelectrolyte. one of which is a biological system that alone drives the memristive behavior. In the device the Physarum polycephalum was used as living organism. the polyaniline as conducting polymer for the source-drain channel. https://www.bekindtopets.com/flash-find-Expansion-Board-2-0-for-Pycom-IoT-Development-Boards-Discontinued-clearance/