uci-mcp/src/mcp230xx.js

import Device from '@uci/i2c-device'
// import Device from '../../uci-i2c-device/src/device-packet'
import commands from './commands'

import logger from '@uci-utils/logger'
let log = {}

class MCP230XX extends Device {
  constructor(opts) {
    super(opts)
    log = logger({
      file: 'src/mcp230xx.js',
      class: 'MCP230XX',
      name: 'mcp',
      id: this.id
    })
    this.chip17 = opts.chip17
    this.chipCfg = opts.chipCfg || 'default'
    this.commands = this.bindFuncs(commands)
    this.addNamespace('commands', 's') // allow access to commands via socket/server
    // this._pin = this.commands.pin // add a simplier reference for local access
    // this._chipcfg = this.commands.chip.cfg // add a simplier reference for local access
  }

  async init() {
    await super.init()
    let res = await this.commands.chip.cfg({cfg:this.chipCfg})
    if (res.error) {
      log.fatal({msg:'unable to configure mcp chip', error:res.error, cfg:this.chipCfg, address:this.address})
      throw `${res.error} at address ${this.address}/${this.address.toString(16)}`
    }
    await this.commands.pin.cfg({pins:'all'}) //pins are outputs by default
    if (this.chip17) await this.commands.pin.cfg({pins:'all', port:'B'})
  }
} // end of MCP230XX Class

export default MCP230XX