BlinkyTape serial protocol and generating same in JavaScript on the host?

mikew67mikew67
in BlinkyTape Troubleshooting

Folks,

Two questions:
1. Is there a succinct document that describes the current serial protocol for the standard BlinkyTape Arduino firmware? (Is it simply a stream of RGB byte triplets, mapped to LED addresses 0..n-1 for n LEDs, with 255 being a distinguished value that means "paint the frame"?)
2. Have seen lots of mentions on the net of various apps, written in various languages, to generate this serial data stream. One of interest, from leojhartiv, provides a link from Java apps to BlinkyTape, using an http server process in the host to get out of the Java sandbox, Has anyone done the same for JavaScript?

TIA,

Mike

Comments

  • Matt MetsMatt Mets

    Hi Mike,

    1. You're correct, it's just RGB triplets with 255 meaning 'end of frame'.
    2. I know of a node example:
      https://github.com/jmorrell/blinky-tape-node

    and I saw a javascript example that used a Chrome extension to talk over serial, however I think that particular platform might have been discontinued.

  • mikew67mikew67

    Thanks, Matt. Anyone else have any info on JavaScript connectors?

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