diff --git a/src/components/Blockly/BlocklyWindow.js b/src/components/Blockly/BlocklyWindow.js
index f507bad..7e06566 100644
--- a/src/components/Blockly/BlocklyWindow.js
+++ b/src/components/Blockly/BlocklyWindow.js
@@ -3,10 +3,8 @@ import PropTypes from 'prop-types';
 import { connect } from 'react-redux';
 import { onChangeWorkspace } from '../../actions/workspaceActions';
 
-import BlocklyComponent, { Block, Value, Field, Shadow, Category } from './';
+import BlocklyComponent from './';
 import * as Blockly from 'blockly/core';
-//import * as De from './msg/de'; // de locale files
-import * as En from './msg/en'; // en locale files
 import './blocks/index';
 import './generator/index';
 
diff --git a/src/components/Blockly/blocks/io.js b/src/components/Blockly/blocks/io.js
index 104b3f4..0e231e9 100644
--- a/src/components/Blockly/blocks/io.js
+++ b/src/components/Blockly/blocks/io.js
@@ -10,7 +10,6 @@
  *
  * TODO: maybe change this to a "PIN" BlocklyType
  */
-import { defineBlocksWithJsonArray } from 'blockly';
 import Blockly from 'blockly/core';
 import { selectedBoard } from '../helpers/board'
 import * as Types from '../helpers/types'
diff --git a/src/components/Blockly/blocks/logic.js b/src/components/Blockly/blocks/logic.js
index 0ba9179..6b17ee4 100644
--- a/src/components/Blockly/blocks/logic.js
+++ b/src/components/Blockly/blocks/logic.js
@@ -1,4 +1,3 @@
-import { defineBlocksWithJsonArray } from 'blockly';
 import Blockly from 'blockly/core';
 
 
diff --git a/src/components/Blockly/blocks/math.js b/src/components/Blockly/blocks/math.js
index 49bdf7d..e69de29 100644
--- a/src/components/Blockly/blocks/math.js
+++ b/src/components/Blockly/blocks/math.js
@@ -1,2 +0,0 @@
-
-import Blockly from 'blockly';
\ No newline at end of file
diff --git a/src/components/Blockly/blocks/sensebox-osem.js b/src/components/Blockly/blocks/sensebox-osem.js
index a6f4eaf..f6b8b66 100644
--- a/src/components/Blockly/blocks/sensebox-osem.js
+++ b/src/components/Blockly/blocks/sensebox-osem.js
@@ -1,6 +1,5 @@
 import * as Blockly from 'blockly/core';
 import { getColour } from '../helpers/colour';
-import Block from 'blockly'
 
 
 Blockly.Blocks['sensebox_osem_connection'] = {
@@ -28,8 +27,7 @@ Blockly.Blocks['sensebox_osem_connection'] = {
         this.setNextStatement(true, null);
     },
     onchange: function (e) {
-        var block = this;
-        var blocks = block.getDescendants()
+
         //Blockly.Blocks.sensebox.getDescendants = blocks;
 
     },
@@ -54,7 +52,7 @@ Blockly.Blocks['sensebox_osem_connection'] = {
     updateShape_: function () {
         var extraFieldExist = this.getFieldValue('gps');
         var input = this.getFieldValue('type');
-        if ((input == 'Mobile') && extraFieldExist == null) {
+        if ((input === 'Mobile') && extraFieldExist === null) {
             this.appendValueInput('lat', 'Number')
                 .appendField(Blockly.Msg.senseBox_gps_lat, 'gps');
             this.appendValueInput('lng', 'Number')
@@ -65,7 +63,7 @@ Blockly.Blocks['sensebox_osem_connection'] = {
                 .appendField(Blockly.Msg.senseBox_gps_timeStamp);
         }
 
-        if (input == 'Stationary' && extraFieldExist != null) {
+        if (input === 'Stationary' && extraFieldExist !== null) {
             this.removeInput('lat');
             this.removeInput('lng');
             this.removeInput('altitude');
@@ -98,7 +96,7 @@ Blockly.Blocks['sensebox_send_to_osem'] = {
         // Is the block nested in a loop?
         var block = this;
         do {
-            if (this.LOOP_TYPES.indexOf(block.type) != -1) {
+            if (this.LOOP_TYPES.indexOf(block.type) !== -1) {
                 legal = true;
                 break;
             }
diff --git a/src/components/Blockly/blocks/sensebox-sensors.js b/src/components/Blockly/blocks/sensebox-sensors.js
index 8c1c24b..0308d7e 100644
--- a/src/components/Blockly/blocks/sensebox-sensors.js
+++ b/src/components/Blockly/blocks/sensebox-sensors.js
@@ -111,7 +111,7 @@ Blockly.Blocks['sensebox_sensor_pressure'] = {
   init: function () {
     var dropdownOptions = [[Blockly.Msg.senseBox_pressure, "Pressure"], [Blockly.Msg.senseBox_temp, "Temperature"], [Blockly.Msg.senseBox_gps_alt, "Altitude"]];
     var dropdown = new Blockly.FieldDropdown(dropdownOptions, function (option) {
-      var input = (option == 'Pressure') || (option == 'Temperature') || (option == 'Altitude');
+      var input = (option === 'Pressure') || (option === 'Temperature') || (option === 'Altitude');
       this.sourceBlock_.updateShape_(input);
     });
     this.appendDummyInput()
@@ -132,7 +132,7 @@ Blockly.Blocks['sensebox_sensor_pressure'] = {
    */
 
   domToMutation: function (xmlElement) {
-    var input = (xmlElement.getAttribute('port'));
+    (xmlElement.getAttribute('port'));
 
   },
   /**
@@ -156,7 +156,7 @@ Blockly.Blocks['sensebox_sensor_pressure'] = {
   updateShape_: function () {
     var extraFieldExist = this.getFieldValue('referencePressure');
     var input = this.getFieldValue('NAME');
-    if (input == 'Altitude' && extraFieldExist == null) {
+    if (input === 'Altitude' && extraFieldExist === null) {
       this.appendDummyInput('extraField')
         .setAlign(Blockly.ALIGN_RIGHT)
         .appendField(Blockly.Msg.senseBox_pressure_referencePressure)
@@ -164,13 +164,13 @@ Blockly.Blocks['sensebox_sensor_pressure'] = {
         .appendField(Blockly.Msg.senseBox_pressure_referencePressure_dim);
     }
 
-    if ((input == 'Pressure' || input == 'Temperature') && extraFieldExist != null) {
+    if ((input === 'Pressure' || input === 'Temperature') && extraFieldExist !== null) {
       this.removeInput('extraField');
     }
   },
   getBlockType: function () {
     var input = this.getFieldValue('NAME');
-    if (input == 'Temperature') {
+    if (input === 'Temperature') {
       return Types.DECIMAL.typeId;
     } else {
       return Types.LARGE_NUMBER.typeId;
@@ -215,7 +215,7 @@ Blockly.Blocks['sensebox_sensor_ultrasonic_ranger'] = {
     var dropdownOptions = [[Blockly.Msg.senseBox_ultrasonic_port_A, 'A'],
     [Blockly.Msg.senseBox_ultrasonic_port_B, 'B'], [Blockly.Msg.senseBox_ultrasonic_port_C, 'C']];
     var dropdown = new Blockly.FieldDropdown(dropdownOptions, function (option) {
-      var input = (option == 'A') || (option == 'B') || (option == 'C');
+      var input = (option === 'A') || (option === 'B') || (option === 'C');
       this.sourceBlock_.updateShape_(input);
     });
 
@@ -241,7 +241,7 @@ Blockly.Blocks['sensebox_sensor_ultrasonic_ranger'] = {
    * @this Blockly.Block
    */
   domToMutation: function (xmlElement) {
-    var input = (xmlElement.getAttribute('port'));
+    (xmlElement.getAttribute('port'));
 
   },
   /**
@@ -277,6 +277,8 @@ Blockly.Blocks['sensebox_sensor_ultrasonic_ranger'] = {
         this.setFieldValue('5', 'ultrasonic_trigger');
         this.setFieldValue('6', 'ultrasonic_echo');
         break;
+      default:
+        break;
     }
   },
 
diff --git a/src/components/Blockly/blocks/sensebox.js b/src/components/Blockly/blocks/sensebox.js
index 43ebcbb..fd40910 100644
--- a/src/components/Blockly/blocks/sensebox.js
+++ b/src/components/Blockly/blocks/sensebox.js
@@ -1,4 +1,4 @@
-import Blockly from 'blockly';
+
 
 
 
diff --git a/src/components/Blockly/generator/generator.js b/src/components/Blockly/generator/generator.js
index 89cd398..8b5808b 100644
--- a/src/components/Blockly/generator/generator.js
+++ b/src/components/Blockly/generator/generator.js
@@ -25,7 +25,6 @@
 // https://developers.google.com/blockly/guides/create-custom-blocks/generating-code
 
 import * as Blockly from 'blockly/core';
-import * as _ from 'lodash';
 
 /**
  * Arduino code generator.
diff --git a/src/components/Blockly/generator/io.js b/src/components/Blockly/generator/io.js
index 19cc7b2..991e4e8 100644
--- a/src/components/Blockly/generator/io.js
+++ b/src/components/Blockly/generator/io.js
@@ -1,5 +1,4 @@
 import * as Blockly from 'blockly/core';
-import { Block } from 'blockly';
 
 /**
  * Function for 'set pin' (X) to a state (Y).
diff --git a/src/components/Blockly/generator/logic.js b/src/components/Blockly/generator/logic.js
index 402a020..443b7b2 100644
--- a/src/components/Blockly/generator/logic.js
+++ b/src/components/Blockly/generator/logic.js
@@ -1,5 +1,4 @@
 import * as Blockly from 'blockly/core';
-import { Block } from 'blockly';
 
 Blockly.Arduino['logic_boolean'] = function (Block) {
     // Boolean values true and false.
diff --git a/src/components/Blockly/generator/loops.js b/src/components/Blockly/generator/loops.js
index cfabf36..e9804bf 100644
--- a/src/components/Blockly/generator/loops.js
+++ b/src/components/Blockly/generator/loops.js
@@ -1,5 +1,5 @@
 import * as Blockly from 'blockly/core';
-import { Block } from 'blockly';
+
 
 Blockly['Arduino']['controls_repeat_ext'] = function (Block) {
     // Repeat n times.
@@ -111,6 +111,8 @@ Blockly['Arduino']['controls_flow_statements'] = function (Block) {
             return 'break;\n';
         case 'CONTINUE':
             return 'continue;\n';
+        default:
+            break;
     }
     throw Error('Unknown flow statement.');
 };
\ No newline at end of file
diff --git a/src/components/Blockly/generator/math.js b/src/components/Blockly/generator/math.js
index 0832e0c..efb02e1 100644
--- a/src/components/Blockly/generator/math.js
+++ b/src/components/Blockly/generator/math.js
@@ -1,6 +1,5 @@
 
 import * as Blockly from 'blockly/core';
-import { Block } from 'blockly';
 
 /**
  * @license Licensed under the Apache License, Version 2.0 (the "License"):
@@ -23,9 +22,9 @@ import { Block } from 'blockly';
 Blockly.Arduino['math_number'] = function (block) {
     // Numeric value.
     var code = parseFloat(block.getFieldValue('NUM'));
-    if (code == Infinity) {
+    if (code === Infinity) {
         code = 'INFINITY';
-    } else if (code == -Infinity) {
+    } else if (code === -Infinity) {
         code = '-INFINITY';
     }
     return [code, Blockly.Arduino.ORDER_ATOMIC];
@@ -71,21 +70,21 @@ Blockly.Arduino['math_single'] = function (block) {
     var operator = block.getFieldValue('OP');
     var code;
     var arg;
-    if (operator == 'NEG') {
+    if (operator === 'NEG') {
         // Negation is a special case given its different operator precedents.
         arg = Blockly.Arduino.valueToCode(block, 'NUM',
             Blockly.Arduino.ORDER_UNARY_PREFIX) || '0';
-        if (arg[0] == '-') {
+        if (arg[0] === '-') {
             // --3 is not legal in C++ in this context.
             arg = ' ' + arg;
         }
         code = '-' + arg;
         return [code, Blockly.Arduino.ORDER_UNARY_PREFIX];
     }
-    if (operator == 'ABS' || operator.substring(0, 5) == 'ROUND') {
+    if (operator === 'ABS' || operator.substring(0, 5) === 'ROUND') {
         arg = Blockly.Arduino.valueToCode(block, 'NUM',
             Blockly.Arduino.ORDER_UNARY_POSTFIX) || '0';
-    } else if (operator == 'SIN' || operator == 'COS' || operator == 'TAN') {
+    } else if (operator === 'SIN' || operator === 'COS' || operator === 'TAN') {
         arg = Blockly.Arduino.valueToCode(block, 'NUM',
             Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
     } else {
@@ -127,6 +126,8 @@ Blockly.Arduino['math_single'] = function (block) {
         case 'TAN':
             code = 'tan(' + arg + ' / 180 * Math.PI)';
             break;
+        default:
+            break;
     }
     if (code) {
         return [code, Blockly.Arduino.ORDER_UNARY_POSTFIX];
@@ -146,7 +147,7 @@ Blockly.Arduino['math_single'] = function (block) {
             code = 'atan(' + arg + ') / M_PI * 180';
             break;
         default:
-            throw 'Unknown math operator: ' + operator;
+            throw new Error('Unknown math operator: ' + operator);
     }
     return [code, Blockly.Arduino.ORDER_MULTIPLICATIVE];
 };
@@ -184,7 +185,7 @@ Blockly.Arduino['math_number_property'] = function (block) {
         Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
     var dropdown_property = block.getFieldValue('PROPERTY');
     var code;
-    if (dropdown_property == 'PRIME') {
+    if (dropdown_property === 'PRIME') {
         var func = [
             'boolean ' + Blockly.Arduino.DEF_FUNC_NAME + '(int n) {',
             '  // https://en.wikipedia.org/wiki/Primality_test#Naive_methods',
@@ -232,6 +233,8 @@ Blockly.Arduino['math_number_property'] = function (block) {
                 Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
             code = number_to_check + ' % ' + divisor + ' == 0';
             break;
+        default:
+            break;
     }
     return [code, Blockly.Arduino.ORDER_EQUALITY];
 };
diff --git a/src/components/Blockly/generator/procedures.js b/src/components/Blockly/generator/procedures.js
index 92e57a7..59a4ec8 100644
--- a/src/components/Blockly/generator/procedures.js
+++ b/src/components/Blockly/generator/procedures.js
@@ -1,5 +1,5 @@
 import * as Blockly from 'blockly/core';
-import { Block } from 'blockly';
+
 
 /**
  * Code generator to add code into the setup() and loop() functions.
@@ -13,7 +13,7 @@ Blockly.Arduino['arduino_functions'] = function (block) {
         var targetBlock = block.getInputTargetBlock(name);
         var code = Blockly.Arduino.blockToCode(targetBlock);
         if (typeof code != 'string') {
-            throw 'Expecting code from statement block "' + targetBlock.type + '".';
+            throw new Error('Expecting code from statement block "' + targetBlock.type + '".');
         }
         return code;
     }
diff --git a/src/components/Blockly/generator/sensebox-osem.js b/src/components/Blockly/generator/sensebox-osem.js
index ee19a76..d4058ce 100644
--- a/src/components/Blockly/generator/sensebox-osem.js
+++ b/src/components/Blockly/generator/sensebox-osem.js
@@ -1,6 +1,4 @@
-import Blockly, { Blocks } from 'blockly';
-import { getColour } from '../helpers/colour'
-import Block from 'blockly';
+import Blockly from 'blockly';
 
 
 /**
@@ -20,7 +18,7 @@ Blockly.Arduino.sensebox_osem_connection = function (Block) {
   var box_id = this.getFieldValue('BoxID');
   var host = this.getFieldValue('host');
   var branch = Blockly.Arduino.statementToCode(Block, 'DO');
-  var blocks = Blockly.Block.getDescendants;
+  //var blocks = Blockly.Block.getDescendants;
   var type = this.getFieldValue('type');
   var ssl = this.getFieldValue('SSL');
   var port = 0;
@@ -36,10 +34,10 @@ Blockly.Arduino.sensebox_osem_connection = function (Block) {
   Blockly.Arduino.definitions_['num_sensors'] = 'static const uint8_t NUM_SENSORS = ' + num_sensors + ';'
   Blockly.Arduino.definitions_['SenseBoxID'] = 'const char SENSEBOX_ID [] PROGMEM = "' + box_id + '";';
   Blockly.Arduino.definitions_['host'] = 'const char server [] PROGMEM =' + host + ';';
-  if (ssl == 'TRUE') {
+  if (ssl === 'TRUE') {
     Blockly.Arduino.definitions_['WiFiSSLClient'] = 'WiFiSSLClient client;';
     port = 443;
-  } else if (ssl == 'FALSE') {
+  } else if (ssl === 'FALSE') {
     Blockly.Arduino.definitions_['WiFiClient'] = 'WiFiClient client;';
     port = 80;
   }
@@ -170,7 +168,7 @@ Blockly.Arduino.sensebox_osem_connection = function (Block) {
       }
     }
   }`
-    var code = '';
+    code = '';
     code += branch;
     code += 'submitValues(' + lat + ',' + lng + ',' + altitude + ',' + timestamp + ');\n';
   }
diff --git a/src/components/Blockly/generator/sensebox-sensors.js b/src/components/Blockly/generator/sensebox-sensors.js
index e413075..655ecc6 100644
--- a/src/components/Blockly/generator/sensebox-sensors.js
+++ b/src/components/Blockly/generator/sensebox-sensors.js
@@ -1,6 +1,4 @@
 import Blockly from 'blockly';
-import { getColour } from '../helpers/colour';
-import { selectedBoard } from '../helpers/board';
 
 /**
  * HDC1080 Temperature and Humidity Sensor
@@ -23,16 +21,17 @@ Blockly.Arduino.sensebox_sensor_temp_hum = function () {
 
 Blockly.Arduino.sensebox_sensor_uv_light = function () {
     var dropdown_name = this.getFieldValue('NAME');
+    let code = '';
     Blockly.Arduino.libraries_['library_senseBoxMCU'] = '#include "SenseBoxMCU.h"';
     if (dropdown_name === 'UvIntensity') {
         Blockly.Arduino.definitions_['define_veml'] = 'VEML6070 veml;'
         Blockly.Arduino.setupCode_['sensebox_sensor_uv_light'] = 'veml.begin();'
-        var code = 'veml.get' + dropdown_name + '()';
+        code = 'veml.get' + dropdown_name + '()';
     }
     if (dropdown_name === 'Illuminance') {
         Blockly.Arduino.definitions_['define_tsl'] = 'TSL45315 tsl;'
         Blockly.Arduino.setupCode_['sensebox_sensor_illuminance'] = 'tsl.begin();'
-        var code = 'tsl.get' + dropdown_name + '()';
+        code = 'tsl.get' + dropdown_name + '()';
     }
     return [code, Blockly.Arduino.ORDER_ATOMIC];
 };
@@ -76,15 +75,16 @@ Blockly.Arduino.sensebox_sensor_sds011 = function () {
 
 Blockly.Arduino.sensebox_sensor_pressure = function () {
     var dropdown_name = this.getFieldValue('NAME');
+    var code = '';
     var referencePressure = this.getFieldValue('referencePressure');
     Blockly.Arduino.libraries_['library_senseBoxMCU'] = '#include "SenseBoxMCU.h"';
     Blockly.Arduino.definitions_['define_pressure'] = 'BMP280 bmp_sensor;';
     Blockly.Arduino.setupCode_['sensebox_bmp_sensor'] = 'bmp_sensor.begin();';
-    if (dropdown_name === 'Pressure' || dropdown_name == 'Temperature') {
-        var code = 'bmp_sensor.get' + dropdown_name + '()';
+    if (dropdown_name === 'Pressure' || dropdown_name === 'Temperature') {
+        code = 'bmp_sensor.get' + dropdown_name + '()';
     }
     else if (dropdown_name === 'Altitude') {
-        var code = 'bmp_sensor.getAltitude(' + referencePressure + ')';
+        code = 'bmp_sensor.getAltitude(' + referencePressure + ')';
     }
     return [code, Blockly.Arduino.ORDER_ATOMIC];
 };
@@ -98,6 +98,7 @@ Blockly.Arduino.sensebox_sensor_pressure = function () {
 
 Blockly.Arduino.sensebox_sensor_bme680_bsec = function () {
     var dropdown_name = this.getFieldValue('dropdown');
+    let code = '';
     Blockly.Arduino.libraries_['library_bsec'] = '#include "bsec.h"';
     Blockly.Arduino.definitions_['bsec_iaqSensor'] = 'Bsec iaqSensor;'
     Blockly.Arduino.variables_['bmeTemperatur'] = 'float bmeTemperatur;';
@@ -170,25 +171,27 @@ Blockly.Arduino.sensebox_sensor_bme680_bsec = function () {
     `;
     switch (dropdown_name) {
         case 'temperature':
-            var code = 'bmeTemperatur';
+            code = 'bmeTemperatur';
             break;
         case 'humidity':
-            var code = 'bmeHumidity';
+            code = 'bmeHumidity';
             break;
         case 'pressure':
-            var code = 'bmePressure'
+            code = 'bmePressure'
             break;
         case 'IAQ':
-            var code = 'bmeIAQ';
+            code = 'bmeIAQ';
             break;
         case 'IAQAccuracy':
-            var code = 'bmeIAQAccuracy';
+            code = 'bmeIAQAccuracy';
             break;
         case 'CO2':
-            var code = 'bmeCO2';
+            code = 'bmeCO2';
             break;
         case 'breathVocEquivalent':
-            var code = 'bmeBreathVocEquivalent';
+            code = 'bmeBreathVocEquivalent';
+            break;
+        default:
             break;
     }
     return [code, Blockly.Arduino.ORDER_ATOMIC];
diff --git a/src/components/Blockly/generator/sensebox-telegram.js b/src/components/Blockly/generator/sensebox-telegram.js
index 6037b2b..f2b5d72 100644
--- a/src/components/Blockly/generator/sensebox-telegram.js
+++ b/src/components/Blockly/generator/sensebox-telegram.js
@@ -1,30 +1,29 @@
 import * as Blockly from 'blockly/core';
-import { Block } from 'blockly';
 
 
 /**
  * Telegram Bot by re:edu
  */
 Blockly.Arduino.sensebox_telegram = function (Block) {
-    let token = Block.getFieldValue('telegram_token');
-    Blockly['Arduino'].libraries_['library_senseBoxMCU'] = '#include "SenseBoxMCU.h"';
-    Blockly['Arduino'].libraries_['library_telegram'] = `#include <UniversalTelegramBot.h>`
-    Blockly['Arduino'].functionNames_['WiFiSSLClient'] = 'WiFiSSLClient client;';
-    Blockly['Arduino'].functionNames_['telegram_objects'] = `#define BOTtoken "${token}"  // your Bot Token (Get from Botfather)
+  let token = Block.getFieldValue('telegram_token');
+  Blockly['Arduino'].libraries_['library_senseBoxMCU'] = '#include "SenseBoxMCU.h"';
+  Blockly['Arduino'].libraries_['library_telegram'] = `#include <UniversalTelegramBot.h>`
+  Blockly['Arduino'].functionNames_['WiFiSSLClient'] = 'WiFiSSLClient client;';
+  Blockly['Arduino'].functionNames_['telegram_objects'] = `#define BOTtoken "${token}"  // your Bot Token (Get from Botfather)
       
     UniversalTelegramBot bot(BOTtoken, client);`
 
-    let code = 'testcode';
-    return code;
+  let code = 'testcode';
+  return code;
 };
 
 Blockly.Arduino.sensebox_telegram_do = function (block) {
-    var messageProcessing = Blockly.Arduino.statementToCode(block, 'telegram_do', Blockly.Arduino.ORDER_ATOMIC);
+  var messageProcessing = Blockly.Arduino.statementToCode(block, 'telegram_do', Blockly.Arduino.ORDER_ATOMIC);
 
-    Blockly.Arduino.definitions_['telegram_variables'] = `int Bot_mtbs = 1000; //mean time between scan messages
+  Blockly.Arduino.definitions_['telegram_variables'] = `int Bot_mtbs = 1000; //mean time between scan messages
   long Bot_lasttime;   //last time messages' scan has been done`
 
-    Blockly.Arduino.loopCodeOnce_['sensebox_telegram_loop'] = `if (millis() > Bot_lasttime + Bot_mtbs)  {
+  Blockly.Arduino.loopCodeOnce_['sensebox_telegram_loop'] = `if (millis() > Bot_lasttime + Bot_mtbs)  {
       int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
       while(numNewMessages) {
         for(int i=0; i<numNewMessages; i++) {
@@ -37,22 +36,22 @@ Blockly.Arduino.sensebox_telegram_do = function (block) {
       }
       Bot_lasttime = millis();
     }`;
-    var code = '';
-    return code;
+  var code = '';
+  return code;
 };
 
 Blockly.Arduino.sensebox_telegram_do_on_message = function (block) {
-    var message = this.getFieldValue('telegram_message');
-    var stuffToDo = Blockly.Arduino.statementToCode(block, 'telegram_do_on_message', Blockly.Arduino.ORDER_ATOMIC);
-    var code = `
+  var message = this.getFieldValue('telegram_message');
+  var stuffToDo = Blockly.Arduino.statementToCode(block, 'telegram_do_on_message', Blockly.Arduino.ORDER_ATOMIC);
+  var code = `
         if (text == "${message}") {
           ${stuffToDo}
         }`;
-    return code;
+  return code;
 };
 
 Blockly.Arduino.sensebox_telegram_send = function (block) {
-    var textToSend = Blockly.Arduino.valueToCode(this, 'telegram_text_to_send', Blockly.Arduino.ORDER_ATOMIC) || '"Keine Eingabe"';
-    var code = `bot.sendMessage(chat_id, String(${textToSend}), "");\n`;
-    return code;
+  var textToSend = Blockly.Arduino.valueToCode(this, 'telegram_text_to_send', Blockly.Arduino.ORDER_ATOMIC) || '"Keine Eingabe"';
+  var code = `bot.sendMessage(chat_id, String(${textToSend}), "");\n`;
+  return code;
 };
diff --git a/src/components/Blockly/helpers/board.js b/src/components/Blockly/helpers/board.js
index f6fc279..e380ce7 100644
--- a/src/components/Blockly/helpers/board.js
+++ b/src/components/Blockly/helpers/board.js
@@ -33,7 +33,7 @@ const sensebox_mcu = {
     i2cPins: { Wire: [['SDA', '17'], ['SCL', '16']] },
     i2cSpeed: [['100kHz', '100000L'], ['400kHz', '400000L']],
     builtinLed: [['BUILTIN_1', '7'], ['BUILTIN_2', '8']],
-    interrupt: [['interrupt1', '1'], ['interrupt2', '2'], , ['interrupt3', '3'], ['interrupt4', '4'], ['interrupt5', '5'], ['interrupt6', '6']],
+    interrupt: [['interrupt1', '1'], ['interrupt2', '2'], ['interrupt3', '3'], ['interrupt4', '4'], ['interrupt5', '5'], ['interrupt6', '6']],
     analogPins: [['A1', 'A1'], ['A2', 'A2'], ['A3', 'A3'], ['A4', 'A4'], ['A5', 'A5'], ['A6', 'A6']],
     serial_baud_rate: 9600,
     parseKey: '_*_'
diff --git a/src/components/Blockly/toolbox/Toolbox.js b/src/components/Blockly/toolbox/Toolbox.js
index c0a1ea3..18ec1db 100644
--- a/src/components/Blockly/toolbox/Toolbox.js
+++ b/src/components/Blockly/toolbox/Toolbox.js
@@ -1,12 +1,9 @@
-import React, { Component } from 'react';
-import BlocklyComponent, { Block, Value, Field, Shadow, Category } from '../';
+import React from 'react';
+import { Block, Value, Field, Shadow, Category } from '../';
 import { getColour } from '../helpers/colour'
 
 
 class Toolbox extends React.Component {
-    constructor(props) {
-        super(props);
-    }
 
     render() {
         return (