Demonstration abstract: enabling WSN nodes to send data to smartmobiles by blinking LEDs. - Jo-Ping Li; Shin-Yi Chang; Pai H. Chou (IPSN, 2014)

Greendicator: Enabling Optical Pulse-Encoded Data Output from WSN for Display on Smartphones. - Shin-Yi Chang; Jo-Ping Li; Hua-Min Tseng; Hen Pai Hsu; Pai H. Chou (iThings/GreenCom/CPSCom, 2014)