Automation & Control with NodeRED & Raspberry Pi Master Class

The Raspberry Pi has a lot of potential as a low cost automation and control processor. But there is no single source of information to learn exactly how to use them in AV projects.

Until now…

Raspberry Pi In AV is the only online course that shows you step-by-step everything you need to know to use these low cost processors in AV systems.

Course Information

Categories: NodeRED, Raspberry Pi

Course Instructor

Patrick Author

Patrick has been working with audiovisual systems in one form or another since 1995. After moving to Germany in 2005, he founded Controlhaus and began developing automation and control software for mega-yachts, luxury homes, command and control centers and a few conference rooms along the way. He loves to learn, hang out with his family and be creative.

Raspberry Pi In AV Master Class

59,50 € Sales Tax Included

Next Step Bundle

SALE 950,81 € Sales Tax Included

Getting Set Up

What Hardware Do I Need?

Starter kits
Heat sinks
Enclosures
GPIO Hat
Touchpanel
USB to serial adapter
Network Converters

Software Setup

ControlPi
Etcher
Raspbian Stretch Lite
Protecting the SD card with read only
NodeRED
Javascript

Adjusting The Raspberry Pi Settings With ControlPi Config

ControlPi Config
raspberrypi:12345/
Switch Between Read-Only/Read-Write
Change SSH Password

Adjusting The Raspberry Pi Settings With SSH

SSH On Windows With Putty
SSH On Mac With Terminal
Switch Between Read-Only/Read-Write
Change SSH Password
Change The Ethernet Settings
Expanding The File System
Updating The System

Before Using The GPIO Pins Or USB-Serial Adapters

GPIO Infrared (LIRC) Settings

LIRC
Infrared Driver File
Infrared GPIO Pin Assignment

USB Serial Port Settings

Find all the connected USB to serial adapters
Find the current baud rate of an USB to serial adapter
Change the baud rate of an USB to serial adapter

Create A Back Up Image

Back Up Image On A Mac
Back Up Image On Windows
Shutdown
diskutil list
gnome-disks

NodeRed Setup

NodeRED Overview

NodeRed Flow Editor on port 1880
Upgrading NodeRED

NodeRED Security

Install node-red-admin with npm
Create a password hash
Edit settings.js
Secure NodeRED flow editor
Secure NodeRED HTTP nodes
Secure NodeRED user dashboard

Backup and Restore NodeRED

SFTP on port 22
FileZilla
Manually start NodeRED

Importing and Exporting Flows

Import And Export Flows With The Clipboard
Import And Export Flows To A File
/home/pi/.node-red/lib/flows/

Installing Nodes

Manage Palette
npm
npmjs.com
GitHub.com

NodeRed Communication Methods

TCP

TCP Input Nodes
TCP Output Node
TCP Request Node
Inject Node (and its limitations)
Function Node
Escape Characters
Convert to string with toString()
Sending Commands In Hex

HTTP

HTTP Input And Output Nodes
HTTP Request Node
Parsing JSON with the HTTP Request Node
HTTP Request Node Authentication

GPIO

Digital Inputs
Digital Outputs
Send Infrared with LIRC

Serial

Serial
USB to Serial Adapters

Network Converters

Global Cache Discovery and Settings
Global Cache Contact Closures
Global Cache Serial
Global Cache IR

NodeRed Programming

Javascript Basics In Less Than 8 Minutes

const
var
integer
string
bool
array
javascript object
dictionary
key value pairs
function

Quick Javascript Reference

Coding Style Conventions
Loose vs Strict Comparison
String Methods and Properties

Read, Store And Manipulate Local Data

SFTP
File Node
CSV
Parse Javascript Object
Node.Warn
Context Variables
Flow Variables
Global Variables
Change Node
Tail Node

Create A Device Driver

If Else
Switch Case
Trigger Node
Polling
Multiple Outputs
Comment Node
Link Node
Switch Node
Split Node
Slice
Replace
Functions in Function nodes
Subflows