How send data to a MailBox ?

[jlivingstonsg]

Hi.

I use a android app called RoboCam 

https://play.google.com/store/apps/details?id=ru.proghouse.robocam&hl=en_US

and the developer said he did it with LEGO developer kits.

https://education.lego.com/en-us/support/mindstorms-ev3/developer-kits

I make now a website

http://robot1.gamereality.se/

that I want to send commands to my robot from.

https://www.youtube.com/watch?v=TZ4ujKcy87o

I use "MailBox" when controlling the robot that recieve drive data.

Does anybody know how to make some  javascript  code lines that send a number to a "MailBox" when a key is pressed ??

 

 MagI