| Needed Features/Interfaces | Related Function(s) | 
1  | Wifi (dual-band 2.4/5GHz) | iOS & Android app comms | 
2  | DC motor | door locking mechanism | 
3  | Servo motor | treat dispenser mechanism | 
4  | USB for Webcam (audio/video & mic) | situational awareness, bark detection | 
5  | Speaker out (or USB port for audio adapter) | dog commands | 
6  | GPIOs for thermal and acoustic sensors | auto-opening/closing locking mechanism | 
7  | LIPO battery (7.2V, ideally) | provide power during elec outages | 
8  | 12V barrel jack | battery re-charge (and splitter connection for house power) | 
9  | Battery power level | know when to recharge | 
10  | Power Out connector (5V, ideally) | for breadboard electronics (primarily sensors) | 
11  | Bluetooth | dog collar BLE tracker/tag for locking mechanism activation |