diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 000000000..3d74e96a8
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,4 @@
+**/renderer/modal/*
+**/renderer/lang/*
+*.bundle.js*
+*.build.js*
diff --git a/app/src/main/datahandler/handler.js b/app/src/main/datahandler/handler.js
index cde8d0b2d..0fbe6483e 100644
--- a/app/src/main/datahandler/handler.js
+++ b/app/src/main/datahandler/handler.js
@@ -1,78 +1,82 @@
 'use strict';
+
 function Handler(config) {
-	this.config = config;
-	switch (config.entry.protocol) {
-		case 'bytearray': {
-			this.sendHandler = require('./bytearray.js').create(config.id, config.entry.bufferSize || config.entry.buffersize);
-			break;
-		}
-		case 'json': {
-			this.sendHandler = require('./json.js').create(config.id);
-			break;
-		}
+    this.config = config;
+    switch (config.entry.protocol) {
+        case 'bytearray': {
+            this.sendHandler = require('./bytearray.js').create(
+                config.id,
+                config.entry.bufferSize || config.entry.buffersize,
+            );
+            break;
+        }
+        case 'json': {
+            this.sendHandler = require('./json.js').create(config.id);
+            break;
+        }
 //		case 'dmp': {
 //			this.sendHandler = require('./dmp.js').create(config.id);
 //			break;
 //		}
-	}
+    }
 }
 
 Handler.prototype.encode = function() {
-	if (this.sendHandler) {
-		return this.sendHandler.encode();
-	}
+    if (this.sendHandler) {
+        return this.sendHandler.encode();
+    }
 };
 
 Handler.prototype.decode = function(data, type) {
-	if (type == 'binary') {
-		if (data[1] != 0x00) {
-			if (!this.receiveHandler) {
-				switch (data[5]) {
-					case 0x01: {
-						this.receiveHandler = require('./bytearray.js').create(this.config.id);
-						break;
-					}
+    if (type == 'binary') {
+        if (data[1] != 0x00) {
+            if (!this.receiveHandler) {
+                switch (data[5]) {
+                    case 0x01: {
+                        this.receiveHandler = require('./bytearray.js').create(this.config.id);
+                        break;
+                    }
 //					case 0x03: {
 //						this.receiveHandler = require('./dmp.js').create(this.config.id);
 //						break;
 //					}
-				}
-			}
-			if (this.receiveHandler) {
-				this.receiveHandler.decode(data);
-			}
-		}
-	} else if (type == 'utf8') {
-		if (!this.receiveHandler) {
-			this.receiveHandler = require('./json.js').create(this.config.id);
-		}
-		if (this.receiveHandler) {
-			this.receiveHandler.decode(data);
-		}
-	}
+                }
+            }
+            if (this.receiveHandler) {
+                this.receiveHandler.decode(data);
+            }
+        }
+    } else if (type == 'utf8') {
+        if (!this.receiveHandler) {
+            this.receiveHandler = require('./json.js').create(this.config.id);
+        }
+        if (this.receiveHandler) {
+            this.receiveHandler.decode(data);
+        }
+    }
 };
 
 Handler.prototype.e = function(arg) {
-	if (this.receiveHandler) {
-		return this.receiveHandler.e(arg);
-	}
-	return false;
+    if (this.receiveHandler) {
+        return this.receiveHandler.e(arg);
+    }
+    return false;
 };
 
 Handler.prototype.read = function(arg) {
-	if (this.receiveHandler) {
-		return this.receiveHandler.read(arg);
-	}
-	return 0;
+    if (this.receiveHandler) {
+        return this.receiveHandler.read(arg);
+    }
+    return 0;
 };
 
 Handler.prototype.write = function(arg1, arg2) {
-	if (this.sendHandler) {
-		return this.sendHandler.write(arg1, arg2);
-	}
-	return false;
+    if (this.sendHandler) {
+        return this.sendHandler.write(arg1, arg2);
+    }
+    return false;
 };
 
 module.exports.create = function(config) {
-	return new Handler(config);
+    return new Handler(config);
 };
diff --git a/app/src/main/serial/connector.js b/app/src/main/serial/connector.js
index 67a846222..ce9f8c6d7 100644
--- a/app/src/main/serial/connector.js
+++ b/app/src/main/serial/connector.js
@@ -355,11 +355,11 @@ class SerialConnector extends BaseConnector {
             !this.isSending
         ) {
             this.isSending = true;
-
+            let resultData = data;
             if (this.options.stream === 'string') {
-                data = Buffer.from(data, 'utf8');
+                resultData = Buffer.from(data, 'utf8');
             }
-            this.serialPort.write(data, () => {
+            this.serialPort.write(resultData, () => {
                 if (this.serialPort) {
                     this.serialPort.drain(() => {
                         this.received = true;
diff --git a/app/src/renderer/js/rendererRouter.js b/app/src/renderer/js/rendererRouter.js
index 74cbcb070..7276df974 100644
--- a/app/src/renderer/js/rendererRouter.js
+++ b/app/src/renderer/js/rendererRouter.js
@@ -122,6 +122,8 @@ class RendererRouter {
         const { appName } = this.sharedObject;
         const { translator, Modal } = window;
         const translate = (str) => translator.translate(str);
+
+        // eslint-disable-next-line new-cap
         const modal = new Modal.default();
 
         if (appName === 'hardware' && navigator.onLine) {