uci-mcp/examples/17-test.js

/*
* i2c bus unix socket and client in one for demo
*
*/

import Base from  '../../uci-base/src/base'
import { spawn } from 'child_process'

const PATH = '/opt/sockets/mcp.sock'

const delay = time => new Promise(res=>setTimeout(()=>res(),time))



const i2cbus = spawn('node',['-r', '@std/esm', './examples/bus'])
i2cbus.stdout.on('data', function(buf) {
  console.log('[I2C BUS]', String(buf))
})

;
(async () => {

  let mcpclient = new Base({id:'mcpclient', sockets:'uc#c>n', uc:{path:PATH}})

  mcpclient.reply = function (packet) {
    console.log('for request ',packet._header.request)
    console.log('mcp status is ',packet.status)
  }

  await mcpclient.init()
  console.log('=============sending============')
  // const pins='2,3,4'
  // const pins=3
  // const pins='all'
  // const pins=[1,3,5,7]

  let packet = {cmd:'pin.cfg', pins:'all'}
  await mcpclient.send(packet)
  packet = {cmd:'pin.cfg', pins:'all', port:'B'}
  await mcpclient.send(packet)
  packet = {cmd:'pin.state.off', pins:'all' }
  await mcpclient.send(packet)
  packet = {cmd:'pin.state.off', pins:'all', port:'B' }
  await mcpclient.send(packet)
  packet = {cmd:'pin.state.on', pins:'2,7', port:'B' }
  await mcpclient.send(packet)
  packet = {cmd:'pin.state.on', pins:'3,6'}
  await mcpclient.send(packet)
  packet = {cmd:'pin.status', pins:'all'}
  await mcpclient.send(packet)
  packet = {cmd:'pin.status', pins:'all', port:'B'}
  await mcpclient.send(packet)

  process.kill(process.pid, 'SIGTERM')


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