Discovery

Find ESP32 meters on the local network

ESP-capable only

Scan

idle

Sources run in order: DHCP leases → ARP/neighbour table → mDNS advertisements → HTTP probe of the subnet. A /24 sweep with 1.5 s timeouts and 64 workers takes a few seconds.

Candidates

IP	MAC	Vendor	Host	Evidence
No scan yet

Manual enrolment

How devices are identified

DHCP leases - most reliable: gives IP + MAC + hostname when the lease file is mounted into the container.
ARP / neighbour table - shows hosts the machine has already talked to; MAC reveals Espressif OUI prefixes.
mDNS - ESP32 sketches that advertise _arduino._tcp or meterpln._tcp self-report.
HTTP fingerprint - probes /status and /health; our firmware answers with a JSON device_id, and stock sketches leak esp32 in headers.