Fil Maksimovic SCuM can stay synched at 10 s intervals with 1.5 ms guard time.
Network was OpenMote (root) → scum → scum. Adding 1 more scum is next.
Maybe getting an OpenMote to join the network with a SCuM parent after a chain of 2-3 scums.
Would require using opentimer instead of direct access to capture/compare registers
Beware low PDR (60-70%) if the receiver is on for a long time vs. being duty cycled. Root cause as yet unknown.
Also helpful is to powercycle the radio every ~100 ms.
Open question is whether the missed packets are periodic, e.g., 3 OK 1 missed etc.
Austin Patel interested in a star network, OpenMote (root) → 5x scum, current results should support that network.
Data rate will be limited because OpenMote can only Rx from one scum at a time.
If OpenWSN is using 10 ms slots, mean latency should be 25 ms. Packet loss must be accounted for too.
Music needs 1 ms latency, typical gaming is 20-70 ms response, high performance gaming is 1 ms. Typical human eye to hand reaction time is 70 ms.
Tarak Arbi presented slides about BPSK demodulation
Per Fil, looks like bank 1 GPOs 8-15 output have I_LC<1:4> and Q_LC<1:4> I think those are the two 4bit ADCs. We may be able to use those GPOs to get sampled IF output and try to do BPSK demod.
Alex Moreno slides on freq vs vbat relationship (supply pushing)
SSCS article on wireless BMS https://ieeexplore.ieee.org/document/9805643