Tutorial Outline

The built-in XOD tutorial is aimed to introduce Pete to the wonderful world of physical computing.

A few principles behind the tutorial are:

• Each lesson carries a small portion of knowledge. One new concept per lesson is an ideal target. See Codecademy for inspiration.
• Each lesson strives to be a try-play-improve loop
• Every patch used in lessons is functional in its initial state
• Use simulation as long as possible postponing the requirement of physical hardware; this covers a wider audience
• Concentrate hardware introduction in a single span so that people who lack the hardware could jump the section and fallback to tweaks/watches
• Use only hardware available with the most popular Arduino starter kits such as Arduino.cc Starter Kit or Sparkfun Inventor Kit

Name	Knowledge	Initial Patch	Tasks	Extra notes
hello	Project browser	clock + count + watch	Go to 02-simulate
simulate	How to run simulation	clock + count + watch	Run simulation
inspector	How to bind values	clock + count + watch	Change interval of clock
patching	How to add, move and link nodes	clock + count + watch	Make a parallel branch of clock + count + watch	Mention double click, I key, dragging from Project Browser, and Ctrl+C/V
tweaks	Using number tweak	tweak + clock + count + watch / clock + count + watch	(a) Play with tweak (b) Link it to another clock (c) Try additional tweak	Mention constant nodes
booleans	Boolean type	tweak-boolean + tweak-number + clock + count + watch / another branch	(a) Play with boolean tweak to enable/disable clock (b) Add another tweak
pulses	Pulse type	clock + count + tweak-pulse + watch / another branch	(a) Play with pulse to reset counter (b) Try another tweak to reset clock
help	Using help bar and h-key popups	2× clock + 2× count + multiply + watch	(a) Learn what multiply does (b) Discover xod/math (c) Replace multiplication with addition	Explain Quick Help and Helpboxes
variadics	Drag to increase number of inputs	2× clock + 2× count + add + tweak-number + watch	(a) Add more add inputs with more tweaks as input
flip-flop	Learn flip-flop	clock + flip-flop + watch	(a) Replace clock with tweak-pulse (b) Add tweak-pulses to SET and RST
if-else	Node if-else	tweak-boolean + if-else + 2× clock + 2× count + watch	(a) Play to choose watch source (b) Replace tweak-boolean with flip-flop driven by clock
strings	Introduce strings	clock + flip-flop + if-else + watch	(a) Observe Hello/World switching (b) Bind XOD/Cool
🚩 Hardware
upload	Learn to upload	clock + flip-flop + led	Play with blink interval	Schemes are always available on the web. If you have no hardware, skip to Patterns, replace hardware nodes with watches and tweaks
led	Learn LED node and PORT	clock + flip-flop + led@13, uncofigured led	(a) Set the port value, (b) Add tweak-number to control brightness
button	Get familiar with button	button + watch, led	(a) Observe button values, (b) Make tactile switch by introducing flip-flop
pot	Get familiar with pot	pot + watch	(a) Observe pot values, (b) Add LED and control its brightness
servo	Get familiar with servo	pot + servo + arm + watch	(a) Observe servo rotation, (b) Calibrate by adjusting Pmin, Pmax	Explain custom types
manipulator	Running a movement in sequence	button + servo + 4× arm	(a) Play with speed and angles, (b) Add other arm stages
text-lcd	Learn LCD	text-lcd, text-lcd-i2c + display-2-lines + 2× tweak-string	(a) Wire either of text-lcd, (b) Play with strings being output
tmp36	Learn thermometer	tmp36 + thermometer + watch	(a) Observe values, (b) Output the values to LCD
ldr	Get familiar with analog-sensor	analog-sensor + watch	(a) Observe values, (b) Output the values to LCD
🚩 Patterns
matching-ranges	map, map-clip	tmp36 + thermometer + map + servo + arm + watch	(a) Observe and adjust map values, (b) draw a gauge on the paper, (c) limit range with map-clip, (d) try ldr instead of tmp36
alarm	less, greater	tmp36 + thermometer + greater + led	(a) Play, (b) Replace greater with less, (c) Use pot to adjust boundaries
permanent-alarm	Combinations / patterns, flip-flop SET/RST	tmp36 + thermometer + greater + flip-flop + led	(a) Reset the board to restart, (b) Add button to reset
run-for-x-seconds	delay	button + delay + led	(a) Observe: push to light up for 3 seconds, (b) adjust time
loops	defer	boot + any + 3× delay + 3× led + defer	(a) Observe the loop, (b) Make it start from button, (c) Add more stages	Mention labels
fade	fade, bool to number cast	boot + any + 3× delay + 3× fade + 3× led + defer	Play, adjust RATE s
slow-down	continuously, UPD pulse	clock + tmp36 + thermometer + text-lcd	Play, adjust IVAL	Explain Continuously
string-formatting	concat, format-number	clock + tmp36 + format-number + concat + text-lcd	Play, adjust rounding, suffix, and prefix	Hack to output ° symbol
units-of-measure	c-to-f	clock + tmp36 + c-to-f + text-lcd-16x2	Add if-else to switch between °C and °F
🚩 Patch nodes
traffic-light	terminals	3× led + delay + terminals	(a) Add terminal for Green, (b) Provide patch description
use-patch-nodes	How terminals become pins	4× traffic-light	(a) Play, adjust delays, (b) Add flashing green state
discover	Drill down, niix, run tab-tests	4× traffic-light	(a) Discover: drill-down to led/delay, (b) open not-implemented in xod, (c) run tab-tests