Fix error message if browser does not support Web Serial

BafangWebCfg.html

@@ -530,10 +530,10 @@ <h2>Throttle</h2>
       bafang.saveFile();
     });
 
-    navigator.serial.addEventListener("connect", (event) => {
+    // navigator.serial.addEventListener("connect", (event) => {
       // TODO: Automatically open event.target or warn user a port is available.
-      console.log("Connected "+event.target);
-    });
+    //   console.log("Connected "+event.target);
+    // });
 
     // navigator.serial.addEventListener("disconnect", (event) => {
     //   // TODO: Remove |event.target| from the UI.

README.md

@@ -1,5 +1,5 @@
 # BafangWebConfig
-Cross-platform browser based configuration tool for Bafang BBSxx e-bike motors. It should work on any modern browser with support for Serial Web API, on Mac, Linux or Windows.
+Cross-platform browser based configuration tool for Bafang BBSxx e-bike motors, runs on Mac, Linux or Windows. It requires a browser with support for Web Serial API, and should work on any recent version of Chrome, Opera or Edge.
 
 ## Run online
 

app.js

@@ -382,7 +382,7 @@ class BafangConfig {
         const node = document.querySelector('#'+key+'.error-display');
         node.style.color = "red";
         node.innerText = msg.join(' ');
-        console.log(key,"ERROR:",msg.join(' '));
+        console.error(key,"ERROR:",msg.join(' '));
     }
     logMsg(blk, ...msg) {
         const key = blockKeys[blk];
@@ -411,10 +411,7 @@ class BafangConfig {
             }
         }
         else {
-            console.error('Web serial doesn\'t seem to be enabled in your browser. Try enabling it by visiting:');
-            console.error('chrome://flags/#enable-experimental-web-platform-features');
-            console.error('opera://flags/#enable-experimental-web-platform-features');
-            console.error('edge://flags/#enable-experimental-web-platform-features');
+            this.logError(BLK_GEN, "Web Serial disabled or not supported by your browser.\nTry a recent version of Chrome, Opera or Edge.")
         }
     }
     async write(data) {