I am developing an application in which I can get data from ELM327 and display it on an Android device. But I doubt that ELM327 is not controlled, I mean that it cannot automatically send data to an Android device, so how could I extract data from ELM327. I really got stuck here. Such help would be appreciated. Thank!
Can someone help me with the type of commands that I have to use in android to get answers from ELM 327? How can I only get speed and rpm? How can I read this data and display it on an Android device?
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