Basic Prototype | Motion Activated Device Synced with Phone App

We are looking for someone to build a wireless motion activated device that is synced to a phone app. The objective is when an object crosses the motion activated device, the app will count the # of times the object crosses the motion activated device on the phone app. The app should function as a counter meaning each time an object crosses the motion activated device, the count increases by "1" ## Deliverables We are open to all options, but a method that could be used is creating an antenna that connects to the phone port where the charger goes and that antenna is synced with the wireless motion activated device. Look forward to working with you.