Fuel the Future of Smart Control OBD
Smart Control is an independent and promising project, built to offer a useful and transparent service: no ads, no tracking, no cloud — your data stays only on your device. But to keep growing and improving, your support is essential.
One-time donations are a complement to license sales: they allow anyone — even those who don’t want the full version — to contribute to the project.
Support upcoming features already in development, such as:
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Android Auto gauges and DTC reset from your car display
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“Drive & Earn” badges to unlock Premium licenses
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Real-time coaching and redesigned dark mode interface
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UX improvements and full Android 16 support
Recommended ELM327/OBD2 Bluetooth Interfaces
Below is a selection of tested and recommended Bluetooth adapters
that offer the best performance and compatibility with the Smart Control app:​
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All these adapters ensure fast data refresh, stable connection,
and full feature support.Other generic ELM327 devices may work as well,
but performance and reliability can vary.
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The above list is purely indicative and only serves to indicate the certainly compatible models with which the app works. For the choice of the most suitable product for your use, I advise you to search online all features to understand the safety and reliability of the various devices. The above indication is a summary of the performance and functionality characteristics of the device. For informed use, I recommend that you carefully read the characteristics of the various devices.
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​As a general rule, the following adapters will work with our applications:
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All based on genuine (original) ELM327 chip with version 1.4/2.1/2.2
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Most likely, all clones, marked as “v1.4” or “v.1.5”, but with the price $20 or higher.
In any case, you can try compatibility with your OBD device with the free version of Smart Control.
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What is OBD2?
In short, OBD2 is your vehicle's built-in self-diagnostic system.
You've probably encountered OBD2 already:
Ever noticed the malfunction indicator light on your dashboard?
That is your car telling you there is an issue. If you visit a mechanic, he will use an OBD2 scanner to diagnose the issue.
To do so, he will connect the OBD2 reader to the OBD2 16 pin connector near the steering wheel.
This lets him read OBD2 codes aka Diagnostic Trouble Codes (DTCs) to review and troubleshoot the issue.
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What is ELM327?
Remarkable technology from ELM electronics, ELM327 is a microcontroller programmed to translate the OBD interface you have in your vehicle. This interface is quite popular for its compatibility with a wide range of OBD2 protocols.
