MIT App Inventor Extensions
This is the official resource for the MIT App Inventor Extensions, use them within your own projects. Explore, create and share new functionality through App Inventor Extensions.
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Note: Make sure you have the latest MIT AI2 Companion application. Click on Help in the menu bar of your App Inventor screen and select Companion Information to get a QR code or link that can be used to download and install the MITAI2Companion.apk on your phone.
Note: The BluetoothLE extension was made possible, in part, by a grant given by the University Program Office at Intel Corporation. Unsupported:
Download .aix File
Takes in two vectors and can add them to return a result vector.
ImageProcessor can do a weighted combine of two images, return the greyscale of an image. Download this
Adds as multitouch scale gesture detector to a Canvas. See
Using App Inventor extensions to implement multitouch
for an explanation of how this works.
Multimedia component that analyzes the pitch of a sound through the microphone and returns it. It can be used as an input to different situations, for instance to control some components with a specific sound whistle(pitch > 500Hz) or clap(pitch > 2000Hz).
Mouhamadou Oumar Sall
Measures the sound pressure level using the microphone and returns the data in decibels. Further documentation for users and developers can be found
RIT App Inventor
Source.zip or Via GitHub
Download .aia File
A project demonstrating basic image processing using an extension.
A project demonstrating how to use the Look component to classify video frames from the device camera.
A project demonstrating Posenet using an extension.
A project that uses Posenet to draw a hat on your head.
Face mesh start project
A start project that uses Face Mesh.
Joy S Yu