Various embodiments for providing solid state illumination for endoscopy or borescopy are provided. Such a garment securable mobile device may be of a clamshell configuration with mating portions hinged to one another such that when closed toward one another a garment space is defined therebetween. Each of the slave devices has a plurality of addresses. A diode has an anode connected to the anode terminal and a cathode connected to the cathode terminal, and an n-channel MOS transistor turns off in response to the low level signal and turns on in response to the high level signal.