Wireless Communication Microcontroller API

Usage of this Page

This page contains the commands used when communicating to and from the Wireless Communication Modules.

More details about the communication protocol can be found via the API Documentation Home Page.

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Command 0x00 – Reset Wireless Module

Request Message:

• Payload Size: 1 byte (null)

Response Message:

• Payload Size: 1 byte

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Command 0x01 – Set Wireless Module Configuration

• Information about which settings can be modified can be found in Section 6 of the RFM69HCW Manual
• This command only modifies one register at a time

Request Message:

• Payload Size: 2 bytes

Byte	Description	Valid Range
0	Register to Modify	See RFM69HCW Manual
1	New Configuration	Varies

Response Message:

• Payload Size: 2 bytes

Byte	Description	Valid Range
0	Register that was Set	See RFM69HCW Manual
1	New Configuration Value	Varies

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Command 0x02 – Get Wireless Module Configuration

• Information about which settings can be modified can be found in Section 6 of the RFM69HCW Manual
• This command only reads one register at a time

Request Message:

• Payload Size: 1 byte

Byte	Description	Valid Range
0	Register to Read	See RFM69HCW Manual

Response Message:

• Payload Size: 2 bytes

Byte	Description	Valid Range
0	Register that was Read	See RFM69HCW Manual
1	Value in Register	Varies

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Command 0x03 – Wireless Receive

Request Message:

• Payload Size: 1 byte (null)

Response Message:

• Payload Size: 64 bytes

Byte	Description	Valid Range
0	Message Available	True/False
1 to 61	Message Received	Any
62 to 63	RSSI	0 to -114 (dBm)

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Command 0x04 – Wireless Transmit

Request Message:

• Payload Size: 61 bytes (contents of message)

Byte	Description	Valid Range
0 to 60	Message to Send	Any

Response Message:

• Payload Size: 1 bytes

Byte	Description	Valid Range
0	TX Successful	True or False