uci-mcp/examples/mcp-switch-relay.js

/*
*
*
*/
import { MCP230XXi } from '../src'
import { MCP230XX } from '../src'
import Base from '@uci/base'

const BUS_HOST = 'sbc'  // if ihost not given will be the same as host:
const BUS_PORT = 1776  // 1776 is default port for i2c-bus module
const SW_ADDRESS = 0x25  // 1776 is default port for i2c-bus module
const RY_ADDRESS = 0x27  // 1776 is default port for i2c-bus module

let announce = new Base({id:'switch:announce'})

let sw17  = new MCP230XXi([9,10],{id:'sw17', chip17:true, host:BUS_HOST, address:SW_ADDRESS+1})
// let sw8  = new MCP230XXi([24],{id:'sw8', host:BUS_HOST, address:SW_ADDRESS})
// let ry8  = new MCP230XX({id:'ry8', host:BUS_HOST, address:RY_ADDRESS})
const reply = { reply: () => {} }
// ry8.c = reply;
sw17.c=reply
// sw8.c= reply

function iprocess(details) {
  console.log('--common interrupt processor--')
  console.log(details)
  announce.push()
  // action function can do whatever but best would be to push the details to any attached client (mqtt or some database that then pushes
  // local_action(details)
}

// just something to do
async function local_action (details)  {
  if (details.id === 'sw17') {
    await ry8.pin.state.toggle({pins:'2,4,6,8'})
  }
  if (details.id === 'sw8') {
    if (details.pin===1) {
      if (details.state==='off') await ry8.pin.state.off({pins:'all'})
      else ry8.pin.state.on({pins:'all'})
    }
    if (details.pin===8) {
      if (details.state==='off') await ry8.pin.state.off({pins:'1,3,5,7'})
      else await ry8.pin.state.on({pins:'1,3,5,7'})
    }
  }
}


(async () => {

  await sw17.init()
  sw17.interruptProcessor(iprocess)

  // await sw8.init()
  // sw8.interruptProcessor(iprocess)
  //
  //
  // await ry8.init()
  // let packet = {pins:'all', cfg:'output'}
  // await ry8.pin.cfg(packet)

})().catch(err => {
  console.error('FATAL: UNABLE TO START SYSTEM!\n',err)
})