_TigerJack21_ wrote:

Awesome! May I suggest maybe linking the titles to their scratch wiki pages?

pkexe wrote:

_TigerJack21_ wrote:

Awesome! May I suggest maybe linking the titles to their scratch wiki pages?

yeah, the link is allowed✔

pkexe wrote:

pkexe wrote:

_TigerJack21_ wrote:

Awesome! May I suggest maybe linking the titles to their scratch wiki pages?

yeah, the link is allowed✔

i mean the swagbucks or whatever

BINARY!

001010101010101010100101010101010101010100101010101010101001100101010101001011010010101010110101001010101100101010100101010101010100101
✔

pkexe wrote:

pkexe wrote:

pkexe wrote:

_TigerJack21_ wrote:

Awesome! May I suggest maybe linking the titles to their scratch wiki pages?

yeah, the link is allowed✔

i mean the swagbucks or whatever

BINARY!

001010101010101010100101010101010101010100101010101010101001100101010101001011010010101010110101001010101100101010100101010101010100101
✔

and you cant link titles in the posts

pkexe wrote:

pkexe wrote:

pkexe wrote:

pkexe wrote:

_TigerJack21_ wrote:

Awesome! May I suggest maybe linking the titles to their scratch wiki pages?

yeah, the link is allowed✔

i mean the swagbucks or whatever

BINARY!

001010101010101010100101010101010101010100101010101010101001100101010101001011010010101010110101001010101100101010100101010101010100101
✔

and you cant link titles in the posts

❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌

?
...
...
...
?

say [][/url]
stop all sounds
stop all sounds
play drum ( v) for (0.2) beats
pen down
set pen color to [#ff0088]
change pen color by ()

when [ v] key pressed
stop all sounds
play drum ( v) for (0.2) beats
play note ( v) for (0.5) beats

Phantomforces wrote:

Look at my new game

say [][/url]
stop all sounds
stop all sounds
play drum ( v) for (0.2) beats
pen down
set pen color to [#ff0088]
change pen color by ()

when [ v] key pressed
stop all sounds
play drum ( v) for (0.2) beats
play note ( v) for (0.5) beats

blob8108 wrote:

This forum has a lot of topics, so I've tried to make a handy index. I hope you find it helpful!

UPDATE: http://scratchx.org/ has been released since this guide was written. ScratchX is the official way of using unofficial extensions.

This guide is mostly obsolete.

HTTP extensions should be considered experimental; the ST has not promised that they'll support them in the future. Writing new JS extensions is preferred.

________________________________________________________

This post lists the different kinds of hardware you can connect to Scratch (or Snap!), and the software you need to install to make them work.

If I've missed anything or made a mistake, or you have any questions, post a reply!

Contents:

• Types of Software
  
• List of Hardware
  
• List of Services
  

___

Types of Software

To connect hardware to Scratch, there are two kinds of software:

Extensions add extra blocks to the normal Scratch program that let you control hardware. Scratch interacts with the hardware through the extension program.

Mods are modified versions of the Scratch program, so they can have more drastic changes: such as compiling and downloading a Scratch program to a robot. But they may be incompatible with the normal Scratch program, and it may be difficult to switch between the mod and Scratch.

NB: Except for the officially-supported extensions (currently only the PicoBoard and Lego WeDo), neither projects including extensions nor projects made with mods may be shared on the Scratch website.

Extensions can be made in a few different ways:

Javascript Extensions [protocol]

Scratch 2.0's online editor supports extensions written in Javascript that can talk to USB devices. The two extensions made by the Scratch Team – PicoBoard and Lego WeDo – are Javascript extensions.

To use Javascript extensions, you first have to install the web browser plugin: scratch.mit.edu/scratchr2/…/download.html You only have to do this once, and then you can use all available Javascript extensions. (Notes: better with Firefox/Safari/Chrome. Reported not working on OS X < 10.7 Lion)

The PicoBoard and WeDo extensions can then be loaded by clicking “Add an Extension” under the “More Blocks” tab. Other experimental extensions can be loaded by shift-clicking the File menu and entering the URL of the Javascript file.

Scratch 2.0 extension support is currently in beta / experimental, so it may change in future and may not currently work properly.

HTTP Extensions [protocol]

Scratch 2.0's offline editor supports HTTP extensions. These require you to install a separate “helper app” program for each extension. The helper app lets Scratch talk to that particular piece of hardware.

Snap! has a very similar extension mechanism, so most HTTP extensions are designed to support both Scratch 2.0 and Snap!. Blockext is a work-in-progress Python library that does this, while also making it much easier to write extensions: blockext.org.

Scratch 2.0 extension support is currently in beta / experimental, so it may change in future and may not currently work properly.

Scratch 1.4 Sensors [protocol]

Scratch 1.4 has a much more limited extension mechanism, called “Remote Sensor Connections”. It doesn't allow adding extra blocks; extensions can only report sensor values. It also allows reading variable values and sharing broadcasts.

However, Scratch 1.4 does have built-in support for the PicoBoard and Lego WeDo without needing any additional software.

ScratchPy is a Python library that makes it much easier to connect to Scratch 1.4: pilliq/scratchpy. There are others listed on the Python wiki page.

___

List of Hardware

PicoBoard (aka ScratchBoard) [description]

• Built-in to Scratch 1.4
  
• Built-in, Scratch 2.0 online editor: (forum post) [Javascript]
  
• Modified version by SCRAXE: (forum post) [Javascript]
  
• S2Bot by SCRAXE: picaxe.com/s2bot [HTTP]
  

Lego WeDo [description]

• Built-in to Scratch 1.4
  
• Modified version by abee for controlling two motors: (forum topic) [Scratch 1.4 Mod]
  
• Built-in, Scratch 2.0 online editor: (forum post) [Javascript]
  
• S2Bot by SCRAXE: picaxe.com/s2bot [HTTP]
  

Lego Mindstorms

• S2Bot by SCRAXE: picaxe.com/s2bot (Mindstorms NXT) [HTTP]
  
• Enchanting (Mindstorms RCX, Mindstorms NXT): enchanting.robotclub.ab.ca [Scratch 1.4 Mod]
  
• SILENT (Mindstorms NXT): sourceforge.net/…/silentprj (forum topic) [Scratch 1.4 Mod]
  
• by botkop (Mindstorms EV3): koen-dejonghe/ev3-scratch-helper-app (forum topic) [HTTP]
  
• Snap-NXT by technoboy10 (Mindstorms NXT): technoboy10/snap-nxt (forum post) [HTTP, Snap!-only]
  
• ScratchNXC, part of PyNXC: web.bryant.edu/~bblais/… (archived forum topic) [Scratch 1.4 Compiler]
  

Gamepad

• scratch-gamepad by bobbybee: github.com/bobbybee/scratch-gamepad (forum topic) [Javascript]
  

Kinect

• Kinect2Scratch by saorog: scratch.saorog.com [Scratch 1.4 Sensing]
  
• saorog is working on a Scratch 2.0 version: (forum topic)
  

Leap Motion

• LeapScratch by khanning (outdated?): khanning/LeapScratch (forum topic) [HTTP?]
  

Raspberry Pi GPIO

• ScratchGPIO5 by SimpleScratch: cymplecy.wordpress.com/scratchgpio (forum topic) [Scratch 1.4 Sensing]
  
• Remote GPIO control by procd: (forum post) [HTTP]
  
• Xi cross-platform interconnect by itchy20: MrYsLab/xi [Javascript] [Snap!]
  

Arduino

• s2a_fm by itchy20: MrYsLab/s2a_fm (forum topic) [HTTP]
  
• scratch4arduino by polpe: cbecc/scratch4arduino (forum post) [HTTP]
  
• instructables.com/id/Scratching-with-Arduino
  
• Xi cross-platform interconnect by itchy20: MrYsLab/xi [Javascript] [Snap!]
  

Compatible alternative — Shrimp: shrimping.it

littleBits

• by abee: (forum topic) [emulates PicoBoard or Lego WeDo]
  
• by khanning: khanning/scratch-littlebits-extension [Javascript]
  

Sphero

• S2Bot by SCRAXE: picaxe.com/s2bot [HTTP]
  
• scratch2sphero by jishiha: champierre/scratch2sphero (forum topic) [???]
  
• (alpha) sphero by technoboy10: technoboy10/sphero [HTTP, Snap!-only]
  

Hummingbird [website]

• hummingbirdkit.com/…/snap [HTTP]
  

Parallax S2

• ssquared by technoboy10: technoboy10/ssquared [HTTP, Snap!-only]
  

Wii Controllers

• wiisnap by technoboy10: technoboy10/wiisnap [HTTP, Snap!-only]
  
• iiConnect2Scratch by CreativeComputerLab: creativecomputerlab.com/iiConnect2Scratch.html (forum topic) [HTTP?]
  

MaKey MaKey [description]

• It acts as a regular keyboard (or mouse). You don't need software.
  (forum topic)
  

Compatible alternative — ShrimpKey: fse.link/fseshrimpkey

___

List of Services

• ScratcherControl Android app by khanning: khanning.com/scratchercontrol (source) [HTTP? (outdated?) & Scratch 1.4 Sensing]
  

Minecraft Pi Edition [website]

• scratch2mcpi by jishiha: github.com/scratch2mcpi [Scratch 1.4 Sensing]
  

Language Translation

• Scratch Translation Extension by khanning: khanning/scratch-translate-extension [Javascript]
  

Speech Synthesis

• snap2speech by technoboy10: technoboy10/snap2speech [HTTP, Snap!-only]
  
• by procd: (forum topic) [HTTP]
  

say [Can you please clear my confusion!]

say []

when [button v] status [= v] [pressed v]::extension hat
say [Ouch!]::extension
if <there is [a forum post v]::extension> then::extension
pika pika::extension stack
else
pikachu pi::extension stack'
end
end::extension
if <there is [pika pi'chu v]::extension> then::extension
else
else
else
else
else
else
else
else
else
else
else
else
else
else
else
else
end
... //this recurs to infinity

//Move in the real life to move your avatar.
when turned on::extension hat
set up variables::custom
switch backdrop to [login v]
play sound [login v]
login::custom
wait until <(login done) = [1]>
switch backdrop to [loading v]
play sound [loading v]
wait until <(loading done) = [1]>
display [Move in the real life to move your character.]::extension stack
display image [professor.png v]::extension stack
intro::custom
play sound [map v]
forever
if <walking [east v]::extension> then
walk east::custom
end
if <walking [west v]::extension> then
walk west::custom
end
if <walking [north v]::extension> then
walk north::custom
end
if <walking [south v]::extension> then
walk south::custom
end
end


when I receive [encounter v]
use [camera v]::extension
repeat until <(caught) = [1]>
throw pokeball::custom
end
caught::custom
end::cap

when [on v] for (10) [minutes v]::extension hat
pick your team::custom
if <(team) = [instinct]> then 
instinct::custom
else
if <(team) = [mystic]> then 
mystic::custom
else
if <(team) = [valor]> then 
valor::custom
else
pick your team::custom
end
end
end
team ending::custom
end::cap

when turned off::extension hat
save data::extension
shutdown::extension cap