S4A is a Scratch modification that allows for simple programming of the Arduino open source hardware platform. It provides new blocks for managing sensors and actuators connected to Arduino. There is also a sensors report board similar to the PicoBoard one.
The main aim of the project is attracting people to the programming world. The goal is also to provide a high level interface to Arduino programmers with functionalities such as interacting with a set of boards through user events.
Scratch Live is a streamlined Mac OS X application specially made to operate with Rane hardware in order to help you mix and scratch music using your Mac. Mix digital audio like a pro using vinyl records or CDs. Hence, you can use Scratch Live to playback MP3, WAV, OGG, AIFF and non-DRM AAC files via special. Install the Scratch app for Windows. Get the Scratch app on the Microsoft Store. Or Direct download. Run the.exe file.
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The interface
An S4A program to control a light-sensor Theremin, with record and playback capabilities
Arduino objects offer blocks for the basic microcontroller functionalities, analog and digital writes and reads, and also for higher level ones. You can find blocks to manage standard and continuous rotation servomotors:
In S4A, an Arduino board is represented by a special kind of sprite. The Arduino sprite will automatically find the usb port where the board is connected.
It is possible to connect to multiple boards at the same time by just adding a new Arduino sprite.
Technical details
Supported boards
S4A works with Arduino Diecimila, Duemilanove and Uno. Other boards haven't been tested, but they may also work.
Connectivity
Components have to be connected in a particular way. S4A allows for 6 analog inputs (analog pins), 2 digital inputs (digital pins 2 and 3), 3 analog outputs (digital pins 5, 6 and 9), 3 digital outputs (pins 10, 11 and 13) and 4 special outputs to connect Parallax continuous rotation servomotors (digital pins 4, 7, 8 and 12).
You can manage a board wirelessly by attaching an RF module to it, such as Xbee.
S4A allows you to control as many boards as USB ports you have.
Compatibility
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S4A is backwards compatible with Scratch, so you can open Scratch projects in it. However, you won't be able to share your projects on the Scratch community website because doing so goes against the Scratch terms of use.
Take in account that this compatibility doesn't work both ways, so you won't be able to open an S4A project from within the original Scratch.
Using a PicoBoard along with an Arduino board is also supported.
Protocol
S4A interacts with Arduino by sending the actuator states and receiving sensor states every 75 ms, therefore the pulse width needs to be greater than this time period. The data exchange follows the PicoBoard protocol and needs a specific program (firmware) to be installed in the board. Please refer to the Downloads section for further instructions on how to do so.
Scratch 3.0 is an Android Education app developed by CodeShala and published on the Google play store. It has gained around 10000 installs so far, with an average rating of 2.0 out of 5 in the play store.
Scratch 3.0 requires Android with an OS version of 2.1 and up. In addition, the app has a content rating of Everyone, from which you can decide if it is suitable to install for family, kids, or adult users. Scratch 3.0 is an Android app and cannot be installed on Windows PC or MAC directly.
Android Emulator is a software application that enables you to run Android apps and games on a PC by emulating Android OS. There are many free Android emulators available on the internet. However, emulators consume many system resources to emulate an OS and run apps on it. So it is advised that you check the minimum and required system requirements of an Android emulator before you download and install it on your PC.
Below you will find how to install and run Scratch 3.0 on PC:
- Firstly, download and install an Android emulator to your PC
- Download Scratch 3.0 APK to your PC
- Open Scratch 3.0 APK using the emulator or drag and drop the APK file into the emulator to install the app.
- If you do not want to download the APK file, you can install Scratch 3.0 PC by connecting your Google account with the emulator and downloading the app from the play store directly.
If you follow the above steps correctly, you should have the Scratch 3.0 ready to run on your Windows PC or MAC. In addition, you can check the minimum system requirements of the emulator on the official website before installing it. This way, you can avoid any system-related technical issues.