Scratch for Arduino boards
[ О приложении ]

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.

**Setup**

In order to upload code an arduino board over USB, you need to add your user to the `dailout` group and connect the snap to the `raw-usb` socket.
Open a terminal window, run the following commands an *reboot* your computer.

> `sudo usermod -a -G dialout $USER`

> `sudo snap connect s4a:audio-record`

> `sudo snap connect s4a:camera`

Now restart your computer and you're good to go!

Note: In order to use S4A with an Arduino board, you need to first upload the firmware to the board.
See the S4A Getting Started guide for more information: https://merlijn.sebrechts.be/blog/2020-02-s4a-setup-ubuntu/

**Supported boards**

* Arduino Diecimila

* Arduino Duemilanove

* Arduino Uno

*Other boards have not been tested but might 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.

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Репозиторий: Snap