One payload is sent with both Battery, Switch, and Error packets concatenated.
If the battery length equals 0x01 then the battery will be a percentage based on the Battery Percentage Loopup Table. If the battery length equals 0x02 then the battery will be in mV based on the Battery Voltage Lookup Table.
Check the documentation in the Javascript Parser for more detail.
Example Payload with Battery Percentage: 007801FF00820208F1FFFF0100
Example Payload with Battery Voltage: 0078020BFE00820208F1FFFF0100
| Packet Type | Key | Length | Value | Decoded Value |
|---|---|---|---|---|
| Battery (Percentage) | 0x0078 | 0x01 | 0xFF | 100% |
| Battery (Voltage) | 0x0078 | 0x02 | 0x0BFE | 3.07V |
| Distance | 0x0082 | 0x02 | 0x08F1 | 2289mm |
| Error | 0xFFFF | 0x01 | 0x00 | No Error |
A downlink payload can be sent to change the uplink interval time in minutes.
FPort 2 is used for sending a Downlink.
Valid range for Uplinks is 0x01 to 0x240. Which equals to 1 minute to 240 minutes (4 hours)
Example: 0100011E = Set Uplink Interval to 30mins
| Packet Type | Key | Length | Value | Decoded Value |
|---|---|---|---|---|
| Uplink Interval | 0x0100 |
0x01 |
0x1E |
30 Minutes |
| Voltage | Sensed Battery Ranges | Percent Remaining |
|---|---|---|
| 2.70V | 0-200 | 0% |
| 2.75V | 201 - 211 | 5% |
| 2.80V | 212 - 221 | 20% |
| 2.85V | 222 - 231 | 70% |
| 2.90V | 232 - 241 | 85% |
| 2.95V | 242 - 253 | 90% |
| 3.05V | 254 - 255 | 100% |
| Voltage | Percent Remaining |
|---|---|
| Less than 2.70V | 0% |
| 2.71V to 2.75V | 5% |
| 2.76V to 2.80V | 20% |
| 2.81V to 2.85V | 70% |
| 2.86V to 2.90V | 85% |
| 2.91V to 2.95V | 90% |
| 2.96V to 3.0V+ | 100% |
| Example | Key | Length | Value | Notes |
|---|---|---|---|---|
0xFFFF0100 |
0xFFFF |
0x01 |
0x00 |
No Error |
0xFFFF0101 |
0xFFFF |
0x01 |
0x01 |
Insufficient Ambient Light Level for Reading |
0xFFFF0102 |
0xFFFF |
0x01 |
0x02 |
Insufficient Reflective Light Level for Reading |
0xFFFF0103 |
0xFFFF |
0x01 |
0x03 |
Unknown Error; Cannot Read Distance |