Lambda Shield vs I'm Hero OBD2 Scanner

Connect wirelessly to your Lambda Shield for Arduino®. Display real time data from your wideband O₂ sensor such as lambda, air fuel ratio and oxygen content. Requires iOS 13 and iPhone 6 or newer.

Turn your car's cryptic check-engine light into something you can actually act on. I'm Hero OBD2 Scanner connects to a standard ELM327 OBD-II adapter over Bluetooth LE or Wi-Fi and shows what your car is doing — in plain language. • Live data — RPM, speed, coolant, fuel trims, O2, intake and more on clean gauges, showing only the parameters your car supports. • Trouble codes — read and clear stored, pending and permanent codes, each with a description and a freeze-frame snapshot from the moment it set. • Explain with AI — tap a code for a plain-English explanation of what it means, common causes, how serious it is, and typical next steps. • Emissions readiness — check the MIL status and which monitors are ready before an inspection or buying a used car. • VIN & vehicle info, battery voltage, and drive-session logging with charts and CSV export. No account. Your vehicle data stays on your device. Works with common ELM327 adapters (Veepeak, Vgate and similar). No adapter yet? Try the built-in Demo mode. A trouble code points to a symptom, not a guaranteed part — always have a professional confirm before repairs.