uci-mcp/src/mcp230xx.js

34 lines
1.1 KiB
JavaScript

import { I2CDevice as Device, map, changed, isPlainObject, to, merge} from '@uci/i2c-device'
import commands from './commands'
class MCP230XX extends Device {
constructor(opts) {
super(opts)
this.chip17 = opts.chip17
this.chipCfg = opts.chipCfg || 'default'
this.pinsCfg = opts.pinsCfg || this.chip17 ? [{port:'A', pins:'all'},{port:'B', pins:'all'}] : [{pins:'all'}]
this.commands = this.bindFuncs(commands)
this.addNamespace('commands', 's') // allow access to commands via socket/server
this.ready.addObserver('mcp:configure',this.ready.getObserver('i2c:device:ack').pipe(
map(async ready => {
if (ready) {
let res = await this.commands.chip.cfg({cfg:this.chipCfg})
if (!res.error) {
let res = await this.commands.pin.cfgs({configs:this.pinsCfg})
return res.error? false : true
} return false
}
return false
})
))
} // end contructor
} // end of MCP230XX Class
export default MCP230XX
export {MCP230XX, map, changed, isPlainObject, to, merge}