JsonServer

Double-click on smartmeshsdk\app\JsonServer\JsonServer.py. The application starts

The h command allows you to get a list of available commands

> h
Available commands:
 - help (h): print this menu
 - info (i): information about this application
 - quit (q): quit this application
 - uptime (ut): how long this application has been running
 - status (s): get the current status of the application
 - seriaports (sp): list the available serialports
 - connectmanager (cm): connect to a manager's API serial port
 - disconnectmanager (dm): disconnect from a manager's API serial port
>

type "sp". What are the available serial ports on your computer?

note

Answer 1:

using the "cm" command, connect the JsonServer to your manager's API port
- the API serial port to connect to is the 4th one
- so if command “sp” returns {'serialports': ['COM11', 'COM12', 'COM13', 'COM14']}, you need to connect to COM14
- type cm COM14 to connect to that manager

type "s". Verify the manager appears as "connected".

> s
{   'SmartMesh SDK version': '1.4.0.1',
    'current time': '04/12/2021 22:35:51',
    'managers': {'COM14': 'connected'},
    'running since': '04/12/2021 22:34:52 (0:00:58.863536 ago)',
    'threads running': [   'MainThread',
                           'SnapshotThread',
                           'DustCli',
                           'WebServer',
                           'ManagerHandler@COM14',
                           'COM14_HDLC',
                           'IpMgrSubscribe']}

Node-RED

in a command prompt, start Node-RED by typing

C:\Users\twatteyne>node-red
30 Mar 03:14:22 - [info]

Welcome to Node-RED
===================

30 Mar 03:14:22 - [info] Node-RED version: v0.16.2
30 Mar 03:14:22 - [info] Node.js  version: v6.9.5
30 Mar 03:14:22 - [info] Windows_NT 6.1.7601 x64 LE
30 Mar 03:14:24 - [info] Loading palette nodes
30 Mar 03:14:26 - [info] Dashboard version 2.3.2 started at /ui
30 Mar 03:14:27 - [warn] ------------------------------------------------------
30 Mar 03:14:27 - [warn] [rpi-gpio] Info : Ignoring Raspberry Pi specific node
30 Mar 03:14:27 - [warn] [tail] Not currently supported on Windows.
30 Mar 03:14:27 - [warn] ------------------------------------------------------
30 Mar 03:14:27 - [info] Settings file  : \Users\twatteyne\.node-red\settings.js

30 Mar 03:14:27 - [info] User directory : \Users\twatteyne\.node-red
30 Mar 03:14:27 - [info] Flows file     : \Users\twatteyne\.node-red\flows_HDC_S
W01.json
30 Mar 03:14:27 - [info] Server now running at http://127.0.0.1:1880/
30 Mar 03:14:27 - [info] Starting flows
30 Mar 03:14:27 - [info] Started flows

open http://127.0.0.1:1880 to see the Node-RED interface:

There are no question in this lab. This lab is preparation for all the ones that follow, in which we will be interacting with the Node-RED interface.