Designing of a PCB schematic for a Wifi Camera

The project is about designing a PCB for a Wifi Camera. The design includes the schematic and the firmware also. 1. The design is about a wifi camera which is small in size(PCB size 1.5 cm x 7 cm) 2. The camera I want to use is an OIS(Optical Image Stabilization) and AF(autofocus camera) having good mega pixels (5 or more). 3. This device will have bluetooth and wifi(AP mode) capability. a) Wifi will be used to stream video from the device to a mobile device.(via Wifi connection via AP Mode) b) Bluetooth will be used to connect from the device to the mobile and play sound from the mobile. 4. There will be 4 manual buttons. a) 3 buttons on the side of the device for controlling the device options. We can map the function for these buttons programmatically later. b) One button at the rear of the device to turn on/off LED Flash Light.(One push LED ON, 2nd Push LED OFF). Please note that the buttons should not be attached to the PCB, we will connect the buttons via cable(wires) to the PCB. 5. We are using WebSocket Library to send video(in form of bitmap) from the device to mobile. We use Arduino IDE to program the firmware. 6. We use BLE(Bluetooth Low Energy) to stream audio from the phone. 7. The device will be powered by a li-ion or a li-po battery. The battery back up should last around 3 hrs. 8. There is a USB TYPE C Charging port at the back side of the device to charge the device. (There should be a battery level indicator inbuilt so that when the user presses "Play" button while charging, it should say the battery percentage)