Towards intelligent living facades: On electrical activity of ordinary moss Brachythecium rutabulum

Mosses display resilience and ecological importance, significantly shaping their environments. With their strong attachment to challenging substrates, mosses can serve as viable options for green living facades. In our initial steps towards developing sensing and computing living facades using moss, we analysed the endogenous electrical activity of mosses to establish foun-dational knowledge for future information processing devices. Employing macro-electrode recording techniques, we identified three patterns of electrical activity in ordinary moss: high-frequency oscillations at 1.2 Hz, medium-frequency oscillations at 2 {middle dot} 10-4 Hz, and low-frequency oscillations at approximately 4 {middle dot} 10-4. Additionally, we observed indications of coordinated electrical activity in moss cushions.