MAXREFDES143#

MAXREFDES143 Reference Design

Analog Devices MAXREFDES143 Reference Design is an Internet of Things (IoT) embedded security reference design built to protect an industrial sensing node using authentication and notification to a web server. The hardware includes a peripheral module representing a protected sensor node monitoring operating temperature and the remaining life of a filter. The device also includes a mbed® shield representing a controller node responsible for monitoring one or more sensor nodes. The design is hierarchical, with each controller node communicating data from connected sensor nodes to a web server that maintains a centralized log and dispatches notifications as necessary. The mbed shield contains a Wi-Fi module, a DS2465 coprocessor with a 1-Wire® master function, an LCD, LEDs, and pushbuttons. The protected sensor node contains an Analog Devices DS28E15 authenticator, a DS7505 temperature sensor, and a MAX44009 light sensor. The mbed shield communicates to a web server by the onboard Wi-Fi module and the protected sensor node with I²C and 1-Wire.