Abstract: A mobile device includes a light source and a light source controller. Data to be transmitted to a point of sale or point of use is obtained by the mobile device, and the light source controller controls the light emitted by the light source to emit light in a blinking pattern that simulates light that would be reflected to a laser scanner when a laser scanner is reading a barcode corresponding to the data to be transmitted. The light, emitted in the blinking pattern, is detected by a laser scanner which then decodes the data represented by the blinking pattern to obtain the data transmitted from the mobile device.