diff --git a/lib/bus.js b/lib/bus.js
index 3eddb04..6632658 100644
--- a/lib/bus.js
+++ b/lib/bus.js
@@ -1,51 +1,51 @@
 'use strict'
 
 const i2c = require('i2c-bus'),
-  pify = require('pify'),
-  PQueue = require('p-queue')
+	pify = require('pify'),
+	PQueue = require('p-queue')
 
 // TODO Create a Bus master class then BusRPi classes etc for actual hardware.
 
 class Bus {
 
-  constructor(busnum = 1) {
-    this.busnum = busnum
-    this.queue = new PQueue({ concurrency: 1 });
-    this.qAdd = (p) => { this.queue.add(() => p) } // p is a promise
-    this.bus = i2c.open(this.busnum, () => {})
-  }
+	constructor(busnum = 1) {
+		this.busnum = busnum
+		this.queue = new PQueue({ concurrency: 1 });
+		this.qAdd = (p) => { this.queue.add(() => p) } // p is a promise
+		this.bus = i2c.open(this.busnum, () => {})
+	}
 
-  scan() { return pify(this.bus.scan).bind(this.bus)() }
-  close() { return pify(this.bus.close).bind(this.bus)() }
+	scan() { return pify(this.bus.scan).bind(this.bus)() }
+	close() { return pify(this.bus.close).bind(this.bus)() }
 
-  readRaw(address, length, buffer) {
-    return pify(this.bus.i2cRead).bind(this.bus)(address, length, buffer)
-  }
+	readRaw(address, length, buffer) {
+		return pify(this.bus.i2cRead).bind(this.bus)(address, length, buffer)
+	}
 
-  writeRaw(address, length, buffer) {
-    return pify(this.bus.i2cWrite).bind(this.bus)(address, length, buffer)
-  }
+	writeRaw(address, length, buffer) {
+		return pify(this.bus.i2cWrite).bind(this.bus)(address, length, buffer)
+	}
 
-  read(address, cmd) {
-    // console.log("read: address, cmd", address, cmd)
-    return pify(this.bus.readByte).bind(this.bus)(address, cmd)
-  }
+	read(address, cmd) {
+		// console.log("read: address, cmd", address, cmd)
+		return pify(this.bus.readByte).bind(this.bus)(address, cmd)
+	}
 
-  write(address, cmd, byte) {
-    // console.log("write: address, cmd, byte", address, cmd, byte)
-    return pify(this.bus.writeByte.bind(this.bus))(address, cmd, byte)
-  }
+	write(address, cmd, byte) {
+		// console.log('write: address, cmd, byte', address, cmd, byte)
+		return pify(this.bus.writeByte.bind(this.bus))(address, cmd, byte)
+	}
 
-  read2(address, cmd) {
-    return pify(this.bus.readWord.bind(this.bus))(address, cmd)
-  }
+	read2(address, cmd) {
+		return pify(this.bus.readWord.bind(this.bus))(address, cmd)
+	}
 
-  write2(address, cmd, bytes) {
-    return pify(this.bus.writeWord.bind(this.bus))(address, cmd, bytes)
-  }
+	write2(address, cmd, bytes) {
+		return pify(this.bus.writeWord.bind(this.bus))(address, cmd, bytes)
+	}
 
 } // end of Bus Class
 
 module.exports = {
-  Bus
+	Bus
 };
diff --git a/test/bus.test.js b/test/bus.test.js
index 3a8faed..52fed6d 100644
--- a/test/bus.test.js
+++ b/test/bus.test.js
@@ -2,16 +2,16 @@
 
 const chai = require('chai'),
   chaiAsPromised = require("chai-as-promised"),
-  Bus = require('../lib/bus').Bus,
-  Device = require('../lib/device').Device
+  Bus = require('../lib/bus').Bus
 
-chai.use(chaiAsPromised);
+chai.use(chaiAsPromised)
 
 const expect = chai.expect
 
 let bus = new Bus()
 
-let addresses = [0x20, 0x23, 0x27]
+// const addresses = [0x20, 0x26, 0x27]
+const addresses = []
 
 describe('Bus Class - ', function () {