@dmx-cloud/dmx/src/drivers/EntTecOpenUsbDMXDriver.js

A NodeJS DMX realtime control library

import { SerialDriver } from './SerialDriver.js'

export class EntTecOpenUsbDMXDriver extends SerialDriver {
  send() {
    if (!this.serial.writable || !this.ready) {
      return
    }

    this.serial.set({
      brk: true,
      rts: true,
    }, () => {
      this.serial.set({
        brk: false,
        rts: true,
      }, () => {
        if (this.ready) {
          this.ready = false
          this.serial.write(Buffer.from([ 0, ...this.universe.subarray(1) ]))
          this.serial.drain(() => {
            this.ready = true
          })
        }
      })
    })
  }
}