Shut Console.log with unplugged usb by code?

[espruino-discuss2]

Posted at 2017-06-09 by Mrbbp

Hello.

I use console.log for debugging purpose, when the board is unplugged but powered, the prog stop after a while because of the fullness (sorry for the word) of the buffer.
Is there a way to kill output if usb is unplugged? (I'm a lazy guy and don't want to comments all my console.logline.😱)
I suppose there is something to write in the onInit()...

Many Thanks

é.

[gfwilliams]

Posted at 2017-06-09 by @gfwilliams

It'll only happen for you if the board is powered from a PC (so there's an active USB connection) - if it's powered from a USB wall supply or any external power then it won't be a problem.

You can move the console to something like Loopback with LoopbackA.setConsole(1) - but you probably want some way to move it back with USB.setConsole() when you want to interface to the device.

Of course the other option is just to do console.log = function(){}; - but if there are other prints (for example exceptions) then that is capable of filling up the buffer as well.

[espruino-discuss2]

Posted at 2017-06-09 by Mrbbp

hum, i'm a bit confuse

LoopbackA.setConsole(1)

in the code... to avoid the buffer pb (or need to open the webide)
and

USB.setConsole()

in the console in the webide, if i want the log back?

regards

é.

[gfwilliams]

Posted at 2017-06-09 by @gfwilliams

Once you move the console with LoopbackA.setConsole(1) nothing you type in the Web IDE will work.

Ideally you would call it somehow from within Espruino. Eg.:

setWatch(function() {
  USB.setConsole();
}, BTN, {repeat:true,edge:"rising",debounce:50});

Then when you press the button you get control back.