RASPBERRY PI VIDEO & CAMERA CONTROL

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Here's the complete working prototype that includes the following hardware and software components: 

Raspberry Pi Model B

Custom Python Server Program 

FFmpeg for HLS streaming

Native Raspberry Pi RTPS Streaming

Adafruit PCA9685 Servo Driver

Breadboard for circuit design

2 Tower-Pro Servo motors 

Pan/Tilt Assembly

GL-iNet Wireless Access Point

1000 mAh battery

I wrote a simple Apple iOS application that provides basic camera control and video streaming from the Raspberry Pi server.

Here's a close-up of the Raspberry Pi Model B and an Adafruit PCA9685 16-Channel Servo Driver. The Adafruit allows for 16 servo motors to be controlled from a single Raspberry Pi pin.

These are Tower Pro Micro Servo SG90 servo motors used to provide pan-tilt control for the Raspberry Pi camera. They're low-cost and not industrial strength, but are perfect for prototyping.