Nodebots Hardware (2018)

Table of Contents
Introduction

Introduction
00:00:00 - 00:06:21
Introduction
Steve Kinney provides an overview of the course, which is about building robots with Node.js. Steve reviews the hardware package needed for the course, Johnny-Five Inventor's Kit. - _https://www.sparkfun.com/products/14604
Setting Up the Tessel 2
00:06:22 - 00:20:11
Setting Up the Tessel 2
Steve walks students through setting up their Tessel 2 devices. He also takes a tour of the Johnny-Five Inventors Kit. - _https://tessel.io/start
Setup Debugging
00:20:12 - 00:21:28
Setup Debugging
Steve reviews how to resolve potential issues when working with multiple Tessel devices.

Tessel 2 LED

Getting an LED to Blink
00:21:29 - 00:25:48
Getting an LED to Blink
Steve walks through the Tessel 2 JavaScript library, demonstrating how to get a built-in LED to blink. - _https://github.com/stevekinney/nodebots-workshop/
Introducing Johnny-Five
00:25:49 - 00:27:52
Introducing Johnny-Five
Steve introduces Johnny-Five, an open source library that provides convenient abstractions for working with a wide variety of boards. - _http://johnny-five.io/
Wiring Up an LED
00:27:53 - 00:31:11
Wiring Up an LED
Steve wires a LED directly to the Tessel 2.
Controlling an LED with Johnny Five
00:31:12 - 00:36:56
Controlling an LED with Johnny Five
Steve writes code using Johnny Five to make the LED blink at a regular interval. - _https://github.com/stevekinney/nodebots-workshop/tree/button-with-led-solution
The Problem with LED Pulsing
00:36:57 - 00:41:28
The Problem with LED Pulsing
Steve explains what pulse width modulation (PWM) is and how digital devices use it to emulate analog signals. - _https://learn.sparkfun.com/tutorials/pulse-width-modulation
Breadboard Overview
00:41:29 - 00:45:30
Breadboard Overview
Steve explains how a breadboard works and why they are used when prototyping hardware. - _https://learn.sparkfun.com/tutorials/how-to-use-a-breadboard
Wiring Up an LED to the Breadboard
00:45:31 - 00:47:37
Wiring Up an LED to the Breadboard
After wiring up an LED using a breadboard, Steve makes it blink again and attempts unsuccessfully to make it pulse.
Pulsing LEDs
00:47:38 - 00:48:58
Pulsing LEDs
Steve uses port A7 to make the LED pulse successfully.

Buttons

Wiring Up a Button
00:48:59 - 00:54:13
Wiring Up a Button
Steve adds a button to the breadboard.
Programming the Button
00:54:14 - 00:59:15
Programming the Button
Steve gets events from the button programmatically. - _http://johnny-five.io/api/button/
Make the Button Control the LED
00:59:16 - 01:01:14
Make the Button Control the LED
Steve writes code to turn the LED on when the button is pressed and off when it is released.

RBG LEDs

Wiring Up a RGB LED
01:01:15 - 01:09:32
Wiring Up a RGB LED
Steve wires up an RGB LED to the breadboard.
Programming & Debugging RGB LED
01:09:33 - 01:17:44
Programming & Debugging RGB LED
Steve programs the RGB LED to rotate through red, green, and blue colors.
Controlling RGB LED from a Browser
01:17:45 - 01:26:33
Controlling RGB LED from a Browser
Steve writes an Express server and some client-side JavaScript to allow users to control the color of the LED.
Add WebSockets for Real-Time
01:26:34 - 01:37:54
Add WebSockets for Real-Time
Steve adds in Socket.io to allow for real-time control of the color of the RGB LED. - _https://github.com/stevekinney/nodebots-workshop/tree/real-time-rgb-led

Reading Weather Data

Wiring Up the BME280
01:37:55 - 01:42:14
Wiring Up the BME280
Steve wires up the BME280 weather sensor to the breadboard.
Reading the Weather Sensor
01:42:15 - 01:50:15
Reading the Weather Sensor
Steve writes JavaScript to log sensor readings to the console. - _https://github.com/stevekinney/nodebots-workshop/tree/bme280
Visualizing Sensor Data Using Barcli
01:50:16 - 01:59:03
Visualizing Sensor Data Using Barcli
Steve uses Lodash's throttle method and Barcli to visualize data in the terminal. - https://github.com/stevekinney/nodebots-workshop/tree/bme280-with-barcli
Update Web Page with Device Data Exercise
01:59:04 - 02:01:37
Update Web Page with Device Data Exercise
In this exercise, students create a page that displays real-time temperature data.
Update Web Page with Device Data Solution
02:01:38 - 02:09:21
Update Web Page with Device Data Solution
Steve walks through the solution to show how to code a page to display the current sensor readings in real-time via Socket.io.
Updating a Remote Server with Device Data
02:09:22 - 02:19:35
Updating a Remote Server with Device Data
Steve posts sensor readings to a remote server. - _https://github.com/stevekinney/nodebots-workshop/tree/bme280-with-sockets-and-post-requests

Magnetic Door Switch

Wiring Up a Magnetic Door Switch
02:19:36 - 02:22:39
Wiring Up a Magnetic Door Switch
Steve wires up a magnetic door switch to detect when a door or drawer has been opened.
Programming the Magnetic Door Switch
02:22:40 - 02:26:17
Programming the Magnetic Door Switch
Steve writes code to detect when a door has been opened.
Using Third-Party APIs with Hardware
02:26:18 - 02:39:31
Using Third-Party APIs with Hardware
Steve writes functionality to send him an email whenever a door has been opened with the SendGrid API. - _https://github.com/stevekinney/nodebots-workshop/tree/door-switch-with-sendgrid

Displaying Data with an LCD Screen

Wiring Up and LCD Screen
02:39:32 - 02:40:15
Wiring Up and LCD Screen
Steve wires up an LCD screen to the breadboard.
Programming the LCD Screen
02:40:16 - 02:45:08
Programming the LCD Screen
Steve create a web-based UI for updating the messages on the screen.
Showing Tweets on the LCD Screen
02:45:09 - 02:51:59
Showing Tweets on the LCD Screen
Steve pulls in a real-time Twitter stream and sends it to the LCD.
Other Kit Items & Wrap Up
02:52:00 - 02:56:09
Other Kit Items & Wrap Up