O developer é o YouTube ev road trips que anda a mais de 5 anos a testar baterias de EV e desenvolveu um modulo M5obd2, e agora avançou para app
O background ja denota muita experiência em modulos odb2
What it does that off-the-shelf adapters don't

Colour touchscreen with live PIDs — works without a phone

Ultra-safe pairing: 6-digit PIN + on-device Allow / Deny, 3-failure 5-min lockout

SD recording → binary .canlog for replay + human-readable .elm.log for protocol RE

Replay mode — play recorded drives back as ELM responses to test apps without a car

Web admin (m5obd.local) — browse SD, live ELM monitor, OTA control

Full ELM327 v1.5: ISO-TP multi-frame (line-per-frame format), ATMA/ATMR/ATMT monitor, full ATSH/ATCRA/ATFCSH

OBD2 modes 01–0A + UDS Mode 22 (manufacturer DIDs)

Hyundai EGMP (Ioniq 5/6, EV6, EV9) BMS multi-frame fix included — no more DATA ERROR on the 2nd poll

OTA over WiFi with dual-OTA rollback safety

Auto-dim → sleep, gesture-driven UI, setup wizard on first boot