The General Purpose Alarm Device (GPAD) shines lights and makes loud noises to draw the attention of a human being to a problem. It provides a programmable, 80 character display to provide textual information. As an inexpensive modular annunciator, it is intended to decrease the cost of any system that requires complex monitoring and rapid human intervention. Fundamentally, it is designed to act as a peripheral to a controlling computer or microcontroller. The controller may communicate over a USB (COM) connection or a 5V SPI connection via an RJ12 cable.
发布者：Robert L. Read Lawrence Kincheloe Forrest Lee Erickson，转转请注明出处：https://robotalks.cn/general-purpose-alarm-device-a-programmable-annunciator/
