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.
There is a report online on a hackaday project run by kuek. The results show that up to 200m is possible in general. See the entire results here
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.
