Abstract: A communication channel setting method and a communication channel selection method for an electronic device are provided. The communication channel setting method measures the interference between two communication protocols implemented on the same electronic device and stores threshold values and a look-up table obtained from the measurements in the electronic device. Next, the electronic device executes the channel selection method. The channel selection method selects usable channels of one of the two communication protocols according to the threshold values and the look-up table, thereby preventing or alleviating the interference between the communication protocols.

Abstract: A photovoltachromic device includes a photoelectrode, a counter electrode electrically connected to the photoelectrode, and an electrolyte layer disposed between the photoelectrode and the counter electrode. The photoelectrode includes a first transparent electrode, an electron-transport layer disposed on the first transparent electrode, and a sensitizing layer disposed on the electron-transport layer. The counter electrode includes a second transparent electrode and an electrochromic layer disposed on the second transparent electrode. The second transparent electrode contacts both of the electrolyte layer and the electrochromic layer thereby accelerating the response times for coloring and bleaching the photovoltachromic device.

Abstract: A milk powder dispenser for dispensing a predetermined amount of milk powder is provided. The dispenser includes a base unit, a milk powder measuring unit, and a control unit. The base unit includes a base plate formed with an opening. The milk powder measuring unit is mounted on a bottom side of the base plate and confines a milk powder retaining chamber that is aligned with the opening in the base plate. The control unit has a top wall formed with an inlet opening and extending slidably between the measuring unit and the base plate, and a bottom wall formed with an outlet opening and extending slidably below the measuring unit.