​

async function setup() {

  createCanvas(400, 400);

​

  noLoop();

  ({ port, reader, writer } = await getPort(115200));

  loop();

​

}

​

/*

async function draw() {

  if (port) {

    try {

      if (mouseIsPressed) {

        background("BLUE");

        await writer.write("clicked!");

      } else {

        background("BLACK");

      }

    } catch (e) {

      console.error(e);

    }

  }

}

*/

​

​

async function draw() {

    try {

        while (true) {

            const { value, done } = await reader.read();

​

            if (done) {

                // Allow the serial port to be closed later.

                reader.releaseLock();

                break;

            }

            //if (value == "Change") {

                // random RGB color

                background(random(255), random(255), random(255));

                console.log(value);

            //}

        }

    } catch (e) { console.error(e) }

}