Fig. 3: Designs and output characteristics of flexible WCS.
From: Squid-inspired and wirelessly controllable display for active camouflage in aquatic-environment
a Schematic illustration and exploded view of near-field WCS. b Photograph of near-field WCS. The system is attached to a substrate with a bending radius of 2.5 cm. c Circuitry of near-field WCS connected to ECD. d Output characteristic of near-field WCS, according to repetitive-signal-state changing of the multiplexer for 1 s. Vout: V1 − V2. e Schematic illustration and exploded-view of Bluetooth WCS. f Photograph of Bluetooth WCS. g Circuit and block diagram of Bluetooth WCS. A block diagram inside the BLE microcontroller is shown, and LDOs are connected to the microcontroller. This system can be wirelessly controlled by a tablet computer via BLE. h Combinational output characteristics (i.e., Vad, Vbd, and Vcd) of Bluetooth WCS according to eight states from four GPIOs. RX receiving, MUX multiplexer, ECD electrochromic display, WCS wireless control system, GPIO general purpose input and output, LDO low dropout.
