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Wireless Communication Microcontroller API
Anthony Randell edited this page Jan 14, 2017
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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.
Request Message:
- Payload Size: 1 byte (null)
Response Message:
- Payload Size: 1 byte
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 |
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 |
Request Message:
- Payload Size: 1 byte (null; 0x00)
Response Message:
- Payload Size: 64 bytes
| Byte | Description | Valid Range |
|---|---|---|
| 0 | Message Available | True/False (1 or 0) |
| 1 to 61 | Message Received | Any |
| 62 to 63 | RSSI | 0 to -114 (dBm) |
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 |
Request Message:
- Not applicable. A general error message is sent when a request has not been understood by the module (such as a CRC16 failure) or some other error occurred preventing a normal reply to a message.
Response Message:
- Payload Size: 1 byte
The table below explains the individual bit meanings of the single byte of the payload.
| Bit | Description | Valid Range |
|---|---|---|
| 7 (MSB) | Timeout | 0 or 1 |
| 6 | Not Used | 0 or 1 |
| 5 | Not Used | 0 or 1 |
| 4 | Not Used | 0 or 1 |
| 3 | Not Used | 0 or 1 |
| 2 | Not Used | 0 or 1 |
| 1 | Not Used | 0 or 1 |
| 0 (LSB) | CRC Error | 0 or 1 |