diff --git a/src/extensions/scratch3_ev3/index.js b/src/extensions/scratch3_ev3/index.js
index 4bea1bb17..f09b496b8 100644
--- a/src/extensions/scratch3_ev3/index.js
+++ b/src/extensions/scratch3_ev3/index.js
@@ -76,9 +76,9 @@ const Ev3Opcode = {
  * @enum {number}
  */
 const Ev3ByteValue = {
-    NUM8: 0x81, // = 0b1000-001 = 1 byte to follow
-    NUM16: 0x82, // = 0b1000-010 = 2 bytes to follow
-    NUM32: 0x83, // = 0b1000-011 = 4 bytes to follow
+    NUM8: 0x81, // = 0b1000-001 = 1 byte to follow // TODO: rename
+    NUM16: 0x82, // = 0b1000-010 = 2 bytes to follow // TODO: rename
+    NUM32: 0x83, // = 0b1000-011 = 4 bytes to follow // TODO: rename
     GLOBAL8: 0xE1, // = 0b1110-001 = size of global var - 1 byte to follow
     GLOBAL_INDEX_0: 0x20 // = 0b00100000 = global var index "0"
 };
@@ -735,7 +735,7 @@ class EV3 {
         if (this._pollingCounter % 20 === 0) {
             // GET DEVICE LIST
             cmds[0] = Ev3Opcode.OPINPUT_DEVICE_LIST;
-            cmds[1] = Ev3ByteValue.NUM8; // 1 byte to follow
+            cmds[1] = Ev3ByteValue.NUM8;
             cmds[2] = 33; // 0x21 ARRAY // TODO: document
             cmds[3] = 96; // 0x60 CHANGED // TODO: document
             cmds[4] = Ev3ByteValue.GLOBAL8;
@@ -818,9 +818,7 @@ class EV3 {
     _onMessage (params) {
         const message = params.message;
         const data = Base64Util.base64ToUint8Array(message);
-        // log.info(`received array: ${array}`);
 
-        // TODO: Is this the correct check?
         if (data[4] !== Ev3Command.DIRECT_REPLY) {
             return;
         }