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Controller

Initial Setup

  1. Install arduio-cli
  2. arduino-cli core update-index
  3. . build_commands

Then run compile && upload to upload the code.

Protocol Specification

Packets

All data is encapsulated in packets. This includes ack messages, video frames, etc.

Control Byte: All packet framing is handled using the Control Byte 0x10.

Control Modifier: The byte immediately following the Control Byte is known as the Control Modifier. A Control Modifier MUST be preceded by a Control Byte.

Control Code: A Control Byte followed by a Control Modifier is referred to as a Control Code. Control Codes are referred to by the Control Modifier. E.G. the Control Code 0xAA is 0x10 0xAA.

Start Marker: Packets MUST begin with the Control Code 0x01, known as the Start Marker.

Literal Control Byte: To send a literal 0x10 as part of the data portion of the packet, the Control Code 0x10 MUST be sent.

End Marker: Packets MUST end with the Control Code 0x02, known as the End Marker.

Data: The data portion of the packet is sent between the Start Marker and the End Marker.

PongWall Frame

Each frame for the PongWall is sent in a single packet of data.

The controller will ask for a frame by sending 0x01 to the server.

The server will send the frame as a single packet.

The controller will send an ACK (0x06) when the end sequence is received.