How to use

• How to use
• Unable to connect
• use multiple units

How to use

1. Download “Physical Sensor for Scratch” 
2. Turn on Scratch “remote sensor connecting”
3. disable firewall (your PC) or allow Scratch (if using)
4. connect with same WiFi (Smartphone)
5. tap connect button! (Android Sensor for Scratch)

Download “Physical Sensor for Scratch” APK

** Only supports Android 11 and below **

 

Turn on Scratch ver 1.4 “remote sensor connecting”

1. Start Scratch 1.4 (Sorry, does not work “Scratch 2.0 Offline Editor” )
   Scratch 1.4 download:  https://scratch.mit.edu/scratch_1.4/
2. Sensing -> slider▼ sensor value -> Right-click
    
3. Select “enable remote sensor connections”
   

Disable firewall or allow Scratch (Very important)

– Windows
Very important.
Allow scratch in firewall or disable firewall, While using this APP.

 

note

• Allow a program to communicate through Windows Firewall
  http://windows.microsoft.com/en-us/windows/communicate-through-windows-firewall
• ESET Smart Security firewall
  http://kb.eset.com/esetkb/index?page=content&id=SOLN2149

– Mac OS X

• http://support.apple.com/kb/ht1810

-Linux / raspberry pi (If you use it)

• add /etc/network/iptables
  -A INPUT -i eth0 -p tcp -m tcp –dport 42001 -j ACCEPT
  -A INPUT -i wlan0 -p tcp -m tcp –dport 42001 -j ACCEPT

Note your Computer IP

Check your Computer IP Address

– Windows

1. Click on the Start Menu, type cmd in search box, and press Enter.
   
2. In the Command Prompt, type ipconfig  and press Enter. Your IP Address is listed to the right of IPv4 Address.
   

– Mac / Linux / raspberry pi

1. Terminal
2. type    ip a

connect same wifi & tap connect button!

1.  Connect your smartphone to the same wifi as your PC.  It can not be used with cellular only.
2.  Enter PC IP Address.
   
    
3. Connect.
   

Use Scratch

Scratch	SmartPhone
compass	compass point (north is 0)
distance	Near the camera *
light	Near the camera *
pressure	(when installed) *
slider	Volume key
sound	Mic
tiltx	Lateral movement
tilty	Vertical motion
tiltz	Height movement

* Sometimes the sensor is not on your smartphone.

 

Unable to connect

Check the setting of firewall and open TCP port 42001, or allow Scratch.

or Please read here.

or temporarily disable the firewall. google “windows disable firewall”.

use multiple units

If you want to use by two or more sets.
Menu -> Setting -> Prefix