Benchmarks
With the current driver version I was informed about maximum ranges (stable measurements) of about 70m and a minimum distance to keep (stable measurements) of about 45cm.
If you made ranging tests by yourself and have numbers to report, please post them here. Thanks.
Application code in use: Simple sender/receiver test
Configuration: Default configuration (with any tuning of the modules disabled)
Distance between nodes: ~40cm
**
| Message sent interval [sec.] | Message count | Reception success rate |
|---|---|---|
| 0.5 | 20000 | ~80% |
| 0.125 | 20000 | ~99% |
| 0.015 (all Serial.print's disabled) | 20000 | ~100% |
Application code in use: Simple sender/receiver test
Configuration: Default configuration (with tuning enabled)
Distance between nodes: ~40cm
| Message sent interval [sec.] | Message count | Reception success rate |
|---|---|---|
| 0.5 | 5000 | 100% |
| 0.125 | 5000 | ~98% |
| 0.015 (all Serial.print's disabled) | 5000 | ~80% |
There must be some issue with the tuning code. Will be repeated another day.
Samples number: 558
mean distance: 1.501m
std: 0.0228m
RX power: around -67dBm
Receive quality: around 350
FP power: -82 dBm
Real distance: around 1.3m (not measured)
There was a test, a single tag ranging to a single anchor from 1.6m to 20cm range (reality). Every 10cm the tag was stopped for a short while. You can see the measurement accuracy is in 10cm domain.
