What is it?

It's a system and I named it Control Machine.As its name suggests, allows you to control the starting, stopping and measuring the operating time of a machine. I would use it on the machine roland MODELA MDX-50 which is in my Lab.

How is works?

Firstly,i have a smartphone having a Bluetooth,i activate the Bluetooth of my device and i use the apk "Controle Machine" then i connect me at circuit electronic through the Bluetooth module HM11 cc2541.Then i send an order ON by the apk for start the machine or OFF to stop her .Finally the microcontroller send back the operating time the machine at the smartphone.