user49319

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• bluetooth failing when not connected to USB

  @user49319 started

  • 3 comments
  • 1,646 views

  @user49319 replied
• bluetooth failing when not connected to USB

  in General • 9 years, 5 months

  

  Oh I love the idea of sending commands as script to execute :)

  Yep that got it working.

  Many thanks!

• bluetooth failing when not connected to USB

  in General • 9 years, 5 months

  

  Hi

  I have a little test script running fone when connected to USB:

  var s = require("servo").connect(B13);
  
  var curBuff = "";
  
  Serial1.on('data', function (data) {
    try{
    if (data==","){
      s.move(parseFloat(curBuff));
      curBuff = "";
    }
    else{
      curBuff += data;
    }
    }
    catch(err){
    }
  });
  
  
  // keep track of the next LED
  var next_LED = 1;
  // keep track of the ID, see later
  var timeout_ID;
  function swap() {
    // remove the timeout to turn of all LEDs when the user pressed the button
    if (timeout_ID !== undefined) {
      clearTimeout(timeout_ID);
    }
    // determine which LED to turn on/off
    switch(next_LED) {
      case 1:
        LED3.write(1);
        LED1.write(0);
        s.move(0.5);
        break;
      case 2:
        LED2.write(1);
        LED3.write(0);
        s.move(0);
        break;
      case 3:
        LED1.write(1);
        LED2.write(0);
        s.move(1);
        break;
    }
    // determine the next LED to turn on
    next_LED = Math.wrap(next_LED, 3) + 1;
    // prepare a timeout to turn off all LEDs after a while
    // we capture the ID here, so that we can use it in a next call to this function
    timeout_ID = setTimeout(function () { LED1.write(0); LED2.write(0); LED3.write(0); timeout_ID = undefined; }, 5000);
  }
  
  setWatch(swap, BTN1, {repeat:true, edge:"rising"});
  

  If I send messages to the bluetooth connection from an app on my phone, first a string of a float (e.g. '0.1') then post another BT message containing just a comma ',' the servo moves.

  I can disconnect from the WebIDE. It still works.

  However! If I unplug the USB, I get a BT message back from the board to my phone:

  'Console Moved from USB'
  Now it fails to work. I send it the float, it echos it back. I send the comma, its sends error:
  "Uncaught SyntaxError: Got ',' expected EOF at line 1 col 1
  ,
  ^"

  Any help appreciated. :)
  Phil

• not persisting :(

  @user49319 started

  • 3 comments
  • 1,831 views

  @Gordon replied
• not persisting :(

  in General • 9 years, 6 months

  

  ah. You type "save()" in the console :)

• not persisting :(

  in General • 9 years, 6 months

  

  Hi.

  I was assuming that if I removed the board from being connected to my laptop, then powered it back up via a battery, that it would be able to run the code I send to it from the IDE. However when I power back on, nothing doing.

  I have a microSD card inserted, but I guess I'missing something obvious.

  Please help a n00b.

  Cheers
  Phil