diff --git a/.gitignore b/.gitignore
index 24c853d..ba63714 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /node_modules/
 /coverage/
 /syncd/
+yarn.lock
diff --git a/.npmignore b/.npmignore
index f16fc41..17cafde 100644
--- a/.npmignore
+++ b/.npmignore
@@ -2,3 +2,4 @@ tests/
 test/
 *.test.js
 testing/
+yarn.lock
diff --git a/examples/ipc-scan.mjs b/examples/ipc-scan.js
similarity index 100%
rename from examples/ipc-scan.mjs
rename to examples/ipc-scan.js
diff --git a/examples/tcp-scan.mjs b/examples/tcp-scan.js
similarity index 100%
rename from examples/tcp-scan.mjs
rename to examples/tcp-scan.js
diff --git a/package.json b/package.json
index 413bde5..4ba9aaa 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,11 @@
 {
   "name": "@uci/i2c-device",
-  "version": "0.1.1",
+  "version": "0.1.3",
   "description": "Device Classes for I2C Interfacing",
-  "main": "src/device-packet.mjs",
+  "main": "src/device-packet",
   "scripts": {
-    "tscan": "node -r @std/esm examples/tcp-scan || true",
-    "iscan": "node -r @std/esm examples/ipc-scan || true",
+    "tscan": "node -r esmexamples/tcp-scan || true",
+    "iscan": "node -r esmexamples/ipc-scan || true",
     "testw": "./node_modules/.bin/mocha  --reporter list --recursive --watch",
     "test": "istanbul cover ./node_modules/.bin/_mocha test/ --report lcovonly -- -R spec --recursive && codecov || true"
   },
@@ -27,14 +27,13 @@
   "homepage": "https://github.com/uCOMmandIt/i2c#readme",
   "dependencies": {
     "@uci/base": "^0.1.1",
-    "@uci/logger": "0.0.1"
+    "@uci/logger": "^0.0.2"
   },
-  "@std/esm": "cjs",
   "devDependencies": {
-    "@std/esm": "^0.18.0",
     "chai": "^3.5.0",
     "chai-as-promised": "^6.0.0",
     "codecov": "^1.0.1",
+    "esm": "^3.0.21",
     "istanbul": "^0.4.5",
     "mocha": "^3.2.0"
   }
diff --git a/src/bus-device-commands.mjs b/src/bus-device-commands.js
similarity index 100%
rename from src/bus-device-commands.mjs
rename to src/bus-device-commands.js
diff --git a/src/device-packet.mjs b/src/device-packet.js
similarity index 85%
rename from src/device-packet.mjs
rename to src/device-packet.js
index e4135cf..ff6a67f 100644
--- a/src/device-packet.mjs
+++ b/src/device-packet.js
@@ -4,15 +4,6 @@ import commands from './bus-device-commands'
 // import logger from '../../uci-logger/src/logger'
 import logger from '@uci/logger'
 let log = {}
-const LOG_OPTS = (id) => {
-  return {
-    repo:'uci-i2c-device',
-    npm:'@uci/i2c-device',
-    file:'src/device-packet.mjs',
-    class:'Device',
-    id:id,
-    instance_created:new Date().getTime()
-  }}
 
 export default class Device extends Base {
   constructor(opts) {
@@ -27,8 +18,8 @@ export default class Device extends Base {
       opts.sockets = (opts.sockets ? (opts.sockets + ',') : '') + 'bus#c>n'
     }
     super(opts)
-    console.log('created i2c device with these options\n', opts)
-    log = logger.child(LOG_OPTS(this.id))
+    // console.log('created i2c device with these options\n', opts)
+    log = logger({file:'src/device-packet.js',class:'Device',name:'i2c-device',id:this.id})
     if (!opts.address) log.fatal({opts:opts},'no i2c bus address supplied' )
     this.address = opts.address
     this._channel = opts.channel  // if using TAC9546A channel number on which device is attached