Expected completion time of this lab:

Enable the D0 GPIO

This step enables the GPIO input pin. It is a required step for reading its value or activating notifications.

The D0 GPIO corresponds to the DP2 pin on the DC9003 SmartMesh Eval/Dev Mote.

create a flow which issues:
- an HTTP PUT request
- to URL http://127.0.0.1:8080/api/v1/oap/{{mote}}/digital_in/D0
- with payload
  { sampleCount: 1, rate: 10000, enable: 1, dataFormat: 0 }

Open the SmartMesh IP Tools Guide (http://www.linear.com/docs/42453), looks for section "/digital_in". What does dataFormat 0 mean?
Answer 1:

Read the value of the D0 GPIO

create a flow which issues:
- an HTTP GET request
- to URL http://127.0.0.1:8080/api/v1/oap/{{mote}}/digital_in/D0
Issue the command to your mote
What is the state (value) of your pin?
Answer 2:
Connect a jumper between the DP2 and VSUPPLY pins. Make sure you can read the value of digital_in/D0 to be high.
Connect a jumper between the DP2 and GND pins. Make sure you can read the value of digital_in/D0 to be low.
NEVER CONNECT VSUPPLY AND GND TOGETHER!!