I am wanting to use arduino and am new to programming... Here is what i want to accomplish
Basically this is what I want to do
Have a device sit and wait for something to come in its view ( it will be between 30-60 CM from the device). Once it is in view send a static alarm to another arduino and wait for the something to leave its view once it does send another alarm to the other arduino until a reset button is pushed.
What type of sensors should I use? Where do I begin?
I have a few arduino r3's and sensor kits. I have done some basic programming to get the device to spit out centimeters to serial ( the example codes out there).
