// to try this demo
// npm install @uci/interrupt
// Connect 5V MCP interrupt pin via 3.3 V logic level!!!!! converter to a gpio pin
// Set your SETTINGS below
// npm run inter

const Bus = require('@uci/i2c').Bus,
	MCP = require('../src/mcp23008-17'),
	// use this require when using your own code
	// MCP = require('@uci/mcp')
	Interrupt = require('@uci/interrupt')

let bus = new Bus()

// SETTINGS
let ADDR = 0x20
let CHIP = 'MCP23017'
let MS = 300 // so humans can watch the light otherwise set to zero
let pinA = 12
let pinB = 16

let id = `${CHIP} at I2C bus address of 0x${ADDR.toString(16)}`

async function ihandler(port) {
	let pin = await this.interruptPin(port, 'PLC')
	console.log(`handler fired for ${this.id} on port ${port} pin ${pin}`)
	await this.interruptReset(port)
}

let mcp = new MCP[CHIP](bus, ADDR, {
	pin_cfg_default: 'toggle_switch',
	id: id,
	interruptA: new Interrupt(pinA, ihandler),
	interruptB: new Interrupt(pinB, ihandler)
});

(async function () {

	await mcp.init()
	// start will start the
	await mcp.start()

})()