Arduino

This is a module aimed to support Raku-for-Arduino development.

Processing use Arduino itself is a part of the Raku++ engine: rakupp answers the name itself. No module installation needed. On any other Raku this module stops the program at the use line.

Version

0.0.1

Synopsis

use Arduino;

constant LED   = 9; # a PWM pin
constant @wave = (^32).map: { (127.5 + 127.5 * sin(2 * pi * $_ / 32)).Int };

pinMode(LED, OUTPUT); # the mainline before the loop: setup()
say "a wave of {@wave.elems} steps";

loop { # the top-level loop: loop()
    state uint8 $i = 0;
    analogWrite(LED, @wave[$i++ % @wave.elems]);
    delay(20);
}

Running the program:

rakupp fade.raku                       # on the simulated board
rakupp --target=arduino fade.raku      # the sketch for a real one

Why a stub

First of all, to reserve the name and make sure the program is accepted by other Raku engines. This also helps to avoid any future conflicts in the module space. (Well, Raku allows tagging module versions with auth, so that's not a complete blocker.)

Raku++ does not rely on the ecosystem for this name. It answers use Arduino before it searches any path or repository, so nothing installed under the name can change what a Raku++ program gets.

Scope

• No API and no simulated board. The board, its functions and its constants are part of the engine. Nothing here imitates them for another Raku; a program that needs them needs Raku++.
• Nothing to configure. The module takes no import list and reads no environment.

Install

rakupp install Arduino

Alternatively:

zef install Arduino

Author

Andrew Shitov (zef:ash).

Licence

Artistic-2.0.

Additional notes

• Design notes: notes/Arduino.md