Receiver_v1.1_esp_now

Earliest receiver implementation with strict packet-size validation and one-way processing.

First generation receiver

Minimal callback pipeline that validates payload size and emits decoded fields to serial output.

Safety check

Packet-size guards reject malformed payloads before decode to avoid buffer misuse.

Operational profile

No reply/handshake behavior. Good for controlled baseline tests and protocol bring-up.

Build / Flash

cd firmware/receiver/esp-now-legacy/v1.1
pio run
pio run --target upload