DEVLOG #11

I started assembling the reference-sensor PCB and soldered the available
parts. The SMD capacitors have not arrived yet, and the ESP pads turned out to
be too small for reliable soldering, so I have started connecting the ESP with
wires instead.
On the software side, I added diagnostics for UART bytes, valid radar frames,
UDP transmissions, and errors. The server and UI now display these values and
detect connection or network problems.
I also tested the complete software path synthetically—from radar input through
calibration, position indexing, blind-test gates, and the UI. All relevant tests
passed, including 10/10 UI tests. This confirms the software path, but not the
final live hardware setup.
A read-only CSI check currently receives no RX packets. The last discovery did
find TX and RX1–RX4 with a stable 64-subcarrier grid, although sequence gaps
were around 5–6%.
Next: finish the wiring, add the capacitors, and restore live CSI reception.