DEVLOG #13

I narrowed the Wi-Fi authentication problem down to the original ESP32-C3.
A second ESP running the same firmware connected to csi-test, received an IP
address, and started its HTTP server successfully. This shows that the TX,
credentials, and firmware work in principle—and that the LD2450 is not causing
the current Wi-Fi failure.

The original ESP (ac:a7:04:c2:71:f4) is now the main suspect, possibly because
of its Wi-Fi hardware, power stability, flash state, or an access-point client
entry.

I also planned a breadboard-compatible power setup for testing without the SMD
capacitors: a through-hole 100 nF ceramic capacitor and 10 µF electrolytic
capacitor across 5 V and GND, placed close to the ESP and radar connections.

The radar itself has not passed a UART test yet. Next, I will connect the
unpowered LD2450 to the working ESP and check whether UART bytes and valid radar
frames increase.