Maxim Integrated, Inc.

Page 12 of 19

7. Provide the internet hotspot setup with the network name and network password with the

values created for Figure 5. Make sure to place the hotspot in reasonable proximity to the

mbed.

8. Follow the directions of each step on the LCD screen of the mbed shield using the directional

keys (up, down, left, right) to move the selection box between menu options and the Left Click

key to select options.

9. Verify the mbed shield LCD screen shows Sensor node: Valid, laser disabled as shown in

Figure 13 indicating the mbed is sending valid signatures to the web server but the laser is not

enabled.

Note: Toggling the Use invalid sig. instructs the mbed to make the generated temperature

measurement signatures unauthenticated when using the web client per Figure 16 and 17.

Figure 13. Sending valid signatures to the web server.