EverFocus EDR-1640, EDR-920 manual Format of message packet is as follows, Length Byte

APPENDIX C: Remote control protocol

2-1. The format of message packet is as follows:

Length Byte (Prefix: 0x86, 0x87, or 0x88 ..... )

Receiver ID high byte

Receiver ID low byte

Opcode Byte

Data Byte1

Data Byte2

Data Byte3

Checksum Byte

2-2. Length Byte

This Length Byte is also a prefix. Bit7 must be 1.

EX: 0x87 ==> this packet has 7 bytes length. (not included length byte itself )

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