I have a little project about opening a cash drawer with an iPhone. I successfully connect my iPhone using a bluetooth to an Arduino uno. And i am able to tune on some LEDs by sending some integer to the Arduino. Now I need to replace the LED to a cash drawer.
But I have some questions here.
the cash drawer need 12V. so I think I need a 12V source and a MOSFET to boost up the output signal. am i going to right direction. Is there any easier way to do the some thing?
Do I simply send out an ON/OFF signal to the cash drawer and it will open. Or I need some code to open the cash drawer?
Thank you for everybody's help.